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Lucent to Offer Cheap Wavelan Cards

Glarvat the Hepcat writes, "Lucent is preparing to sell new 11 Mbps cards at costs to rival some of the 2 Mbps cards such as WebGear. They also are supposed to be also to handle distances of up to 1500 feet. Released to select retailers by late March. " Recently we ordered a few Lucent cards at the Geek Compound to test them out. The impressive thing about these things is that Wavelan has Linux drivers: Source code and all. How many vendors have tarballs on their sites? The hardware gateways are fairly expensive, but simply setting them up peer to peer and using IP Masqing works pretty well. I haven't tested the range but they quite quick.

231 comments

  1. Price by RaZ0r · · Score: 2

    "The list price of the ORINOCO PC Card is $179; the PCI and ISA adapter are $69 each, and the RG-1000 Residential Gateway is $349." The price doesn't seem too bad at all.


    Lets stop praying for someone to save us and save ourselves. ~KMFDM

    --


    - Think for yourself, question authority.-
    1. Re:Price by whoop · · Score: 1

      And how's that different from the $180 Gold Wavelan card that does encryption? This doesn't seem like that much of a savings. ;)

    2. Re:Price by Anonymous Coward · · Score: 0

      this is old news you can buy those cards for over 2 months for $166 @ www.cdw.com. cdw partnumber #193484

  2. Faster than, well a 10baseT card... by kwsNI · · Score: 2

    How well would these work in conjunction with a USB network? Don't USB networks operate at 11MBps? (Or is it 12?)

    kwsNI

    1. Re:Faster than, well a 10baseT card... by Anonymous Coward · · Score: 0

      > Don't USB networks operate at 11MBps?

      More like 1 Mbps

    2. Re:Faster than, well a 10baseT card... by EraseMe · · Score: 1

      USB runs at 1.5 to 12.0Mbps.. It'll hopefully get faster over time, but probably won't ever be comparable to firewire. Wireless will certainly take over your peripheral devices sometime this decade. :)

      - EraseMe

  3. ADSL with wireless by DavidpFitz · · Score: 2

    Very interesting. I'm getting my ADSL connection installed tomorrow, with the box being downstairs and the computer being 3 flights away from it I'm going to run into a bit of trouble. The ADSL box works a little like an Ascend pipeline, from what I gather, so my machine thinks it's wired to the network and knows nothing about ADSL whatsoever - I could put my FreeBSD box downstairs and IP MASQ over wireless upstairs. A bit fo a waste of a computer in the porch, though. Does anyone know if it's at all possible using something similar to this kind of kit to have a wireless link to a network port in the wall without havign a second comptuer to route through? In other words, trying to replace the traditional cable with a wireless link? Dave.

    1. Re:ADSL with wireless by poink · · Score: 1

      There is the BreezeCom unit, but it is only 3 Mbps.

    2. Re:ADSL with wireless by Tigger's+Pet · · Score: 1

      Bay (sorry, Nortel) Networks sell a unit called a BayStack 600. It gives you a small box at the core with a 10bT / 10b2 connection to whatever you want, then you run PCMCIA cards in your remote PCs. There is no need for a PC at the hub, but it may be out of the price range of the average home-user.

    3. Re:ADSL with wireless by barleyguy · · Score: 2

      They sell a serial/ethernet gateway for the cards in this article. It's $349.00. Maybe worth it if the machine you are sacrificing is worth more than that.

      --
      --- "So THAT's what an invisible barrier looks like!" - Time Bandits
    4. Re:ADSL with wireless by TwP · · Score: 1
      The article mentioned a standalone gateway deveice that you can purchase for about $350 (american). It has a built-in 56.6k modem and an RJ45 ethernet adapter. You could simply plug your ADSL modem directly into the gateway and then have as many wireless computers around your house as you want.

      the RG-1000 Residential Gateway access point that acts as a central base station in a house or small business. The Residential Gateway includes a built-in 56K modem that can be directly plugged into a phone line, and a 10baseT Ethernet jack for connecting to an existing wired Ethernet network or a xDSL or cable modem Internet connection. -- from the article --

      Don't forget to use a crossover cable for the connection between the gateway and the DSL modem.

    5. Re:ADSL with wireless by YU+Nicks+NE+Way · · Score: 1
      Actually, this is very close to what I do. I have a thrice-homed FreeBSD box connected to ADSL, and I run both a wired LAN (in the office itself) and a wireless LAN (WaveLAN Turbo using wi0). The FreeBSD box runs NAT for the rest of the network.

      The subtlety is that F'BSD 3.3 and 3.4 don't support encryption for WEP. You'll need to wait for 4.0 before that support is available.

    6. Re:ADSL with wireless by Boulder+Geek · · Score: 1
      My approach would be to put a cheap Linux box as a router/masq server. The machine I currently use for this application is an old HP Vectra/133 that I picked up for under US$100. Put 802.11 on the inside interface, and 10BaseT on the router side. This should cost significantly less than an access point, and do more for you.

      I think that you want to avoid putting wireless talking directly to the router, as you will be opening up your DSL line to anyone within 1500' that wants to use it. Well, maybe you do want that ;-).

      --
      A well-crafted lie appears unquestionable - Dama Mahaleo
    7. Re:ADSL with wireless by NetFu · · Score: 1

      The Apple Airport has 40-58bit (I'm not sure which) encryption that you can just easily turn on, and you set an admin password. I'd assume the Lucent one will have similar if not better features since it's Lucent hardware inside the Airport. We've been using Airports (3) here at work and at my house for several months and they've been flawless for ethernet routing -- very easy to use and very fast. And, if you figure that to set up a PC router, you'd have to get the PCMCIA card for $175 (approx. street price) plus $70 plus buy a PC or have one that's worth no more than $55??? The Airport works *out of the box* as an ethernet router for $299 (includes NAT/DHCP if you want to configure it, but we just need wireless routing).

      I would assume this Lucent device will be almost exactly the same device for about that street price -- that's pretty hard to beat when you consider that it's a simple device that won't crash or have other typical PC problems.

    8. Re:ADSL with wireless by yuriwho · · Score: 1

      Some readers may consider this blasphemy but...

      you could buy an apple airport (~$295 US) and a wavelan silver card for your box. You may need a mac to get the basestation configured correctly. The airport uses the IEEE 802.11 standard (actually it uses a Wavelan Silver chipset) and thus is compatible across platforms. It also provides NAT and can share DHCP addresses across a wired network simultaneously if you are interested.

      If you have an Airport capable mac kicking around to get it configured it may be an easy solution if you don't have a spare box. Unfortunately the configuration software provided by apple to configure the basestation only runs on the iBooks, new iMacs, powerbooks or G4's.

      You could also offer to share your bandwidth with your neighbours to offset your costs.

      Just a thought.

      --
      no sig.
  4. somebody will be happy about this: by Russ+Nelson · · Score: 3

    http://www.sflan.com/

    Also, the @stake folks doing Guerilla Networking.

    Also, the Midcoast (Maine) Internet folks, although they've standardized on Breezecom.
    -russ

    --
    Don't piss off The Angry Economist
    1. Re:somebody will be happy about this: by Anonymous Coward · · Score: 0

      i think i speak for all slashdot readers when i say i hope @stake let's these guys set up some more nodes. like, in my backyard (i live ~30mi from the l0pht).

  5. Availability outside the US? by ruud · · Score: 2

    Does anyone know if these things are available outside the US (e.g., .nl) for reasonable prices? Are the US units compatible with the ones sold in Europe or do they operate in a different frequency band (like cell phones)?
    --

    --
    bgphints - internet routing news, hints and ti
    1. Re:Availability outside the US? by Russ+Nelson · · Score: 3

      Yes, this is one of the things that has been done right. The same frequency band is used across Europe, Japan, and the US -- 2.4Ghz. That's why equipment for the older 900 Mhz band is dying out.
      -russ

      --
      Don't piss off The Angry Economist
    2. Re:Availability outside the US? by Anonymous Coward · · Score: 0

      The 2.4 specrum is unregulated throughout most of Europe, the boards are basically the same, I think the UK ones need to carry a CE certification though, apart from that they're the same thing.

      Don't try and use one of these things in France though, you'll get the French Military after you for distrupting their communications. That's why there's no AirPort in France also.

      I think the WaveLan Gold cards (128bit crypto) should start to find their way through to Europe too, since the export regs are more liberal.

      As for cost savings, I don't really see any major break throughs, the 11meg cards have been sitting at the $166 (us) price tag since they were released late last year anyway.

      The technology is pretty cool, they've had a 2meg wireless lan link at college from campus to campus for 5-6 years now. However, it's certainly become a lot more mainstream since then, I think each node cost them $5000 back then.

      100base-TX over cat5 obviously beats wireless price and performance wise, but it's kindof neat if you've got a laptop, and the peer-to-peer functionality is good too, i.e. a quick game of Quake in lectures.

      Az.

    3. Re:Availability outside the US? by Anonymous Coward · · Score: 0

      The French have a military?

      Oh, that's right. Those are the guys who won WWII. (snicker)

    4. Re:Availability outside the US? by xyzzy · · Score: 2

      ....with the notable exception of FRANCE, who assigned the 2.4ghz range to the military. DOH!

    5. Re:Availability outside the US? by jfix · · Score: 1

      looking at applestore france, it seems to me you may well buy an airport in france.

      cheers, jfix.

  6. There are two versions of the drivers by Anonymous Coward · · Score: 2

    The source they released for linux does not contain things such as power optimizations. There is an object code version too though.

  7. Im not suprised by jailbrekr2 · · Score: 1

    With the mass adoption of Bluetooth, Lucent has to do something to maintain market share. As well, rumor has it that a Bluetooth wireless network will knock out an 802.11 network. Can anyone confirm this rumour?

    --
    Feed The Need[goatse.cx]
    1. Re:Im not suprised by Anonymous Coward · · Score: 0

      blehh-tooth is a piece of shit ... it operates at 1 Mbps whereas the Lucent product goes at 10x faster & is available today: IEEE 802.11 rocks; don't get bogged down in the ms-based marketing of blehh-tooth: it's a waste of your time & money

    2. Re:Im not suprised by Anonymous Coward · · Score: 0

      MS is actually not very friendly to bluetooth. Everyone had to gang up before they were willing to be dragged along, and then they probably have their own thing coming out too.

    3. Re:Im not suprised by troc · · Score: 1

      Yes, bluetooth will kill any 802.11 network it's near. This is because bluetooth frequency-hops extremely quickly such that other devices see it as pure noise swamping the frequency band.

      All it would take is an bluetooth enabled phone (or whatever) in the same room as a base station and thw whole 802.11 network will fail.

      Troc

      --
      Troc's dubious podcast and blog: http://www.trocnet.net
    4. Re:Im not suprised by Anonymous Coward · · Score: 0

      Don't get BlueTooth mixed up with Wireless LAN, it's only a short range system with slow speeds (1meg ish), it's useful for syncing your Palm with your PC or mobile phone etc, it's certainly not on the same level as Wireless Lan.

      This is similiar to people thinking USB competes with Ethernet, this isn't the case, since USB also only allows short range at short distances.

      There are issues with Bluetooth and Wireless Lan coinciding though, since they both use the unregulated 2.4ghz frequency they can disrupt each other, just like collisions on your ethernet hub.

      They're planning to move Wireless LAN onto the 5.7ghz specrum though, this will allow them to get the 25,50,100meg speeds.

      However, Bluetooth and Wireless LAN both serve their own niches though, Bluetooth being too adhoc and slow and short range for computers and Wireless LAN being too over the top for PDA, Mobile Phones, etc.

      Az.

    5. Re:Im not suprised by mindstrm · · Score: 2

      Well, I can deny it, based on the fact that Bluetooth has dick-all to do with 802.11 and wireless networking.

      Bluetooth *IS* slow, and *IS* short range, and that won't change; it's not supposed to and doesn't need to.

      And Lucent isn't having any problem maintaining market share. Those 11Mbps cards WAIL!

    6. Re:Im not suprised by Anonymous Coward · · Score: 0
      I don't know anything about Bluetooth specs, but... spread spectrum devices don't "swamp the frequency band" they operate in. If they were emitting on all frequencies all the time, this might be the case, but they operate on one frequency for a finite amount of time.

      If another device is operating on the same frequency, interference will probably occur, but only for the finite amount of time that both occupy the same frequency. Then both devices switch to randomly-chosen frequencies, which will probably be different, and both will operate properly.

      This is the technology Metricom uses in its Ricochet modems. You can have quite a few Ricochets within range of each other without significant interference effects. I want to say that cellphones share frequencies with the Ricochets (I know they're both somewhere in the 900 MHz band), but I'm not sure if they overlap.

      That's it for now...

      ---
      chahast at pangaea dot dhs dot org

    7. Re:Im not suprised by kenh · · Score: 1
      Bluetooth was designed for devices in *near* proximity (less than 3 or 4 feet apart), and low speed/low power applications.

      Bluetooth is designed for a very different purpose than these wireless LAN cards...

      --
      Ken
  8. already using them in Linux routers by Garfunkel · · Score: 4

    We just setup a wirless network to connect some of the small group housing here at the College. We're using the Lucent WaveLan Turbo Silver 11Mbs cards in P100 linux routers and they work great! It was a relatively quick and easy setup, I just wish I could figure out how to get mrouted (multicast routing) working so the students can log into the Netware servers. Anyone have any ideas (the HOWTOs are no help so don't point me there)?

    As a side note, I will be getting one of these nice 11 meg links to my house shortly. :) And you guys thought DSL was nice, heh!

    --
    -jay
  9. 802.11 by XenoWolf · · Score: 2

    I've worked with some 802.11, and it's interesting how much fun you can have with a low wattage, high frequency device. If you can find a way to hack the antenna on the device so that you can connect a higher gain antenna, you can get much greater distance out of the device, albeit much more directionally biased. I'd be interested to see if these cards can handle something like a 13-23dBi antenna, cause you could get some *mad* distances with that, something on the order of a few miles. I've seen it done with the more expensive units - I'd buy these cards if they could do the same.

    --
    XenoWolf The Original - Since 1993
    1. Re:802.11 by dattaway · · Score: 5

      Here's how to add a highly directional antenna to a wireless card with no antenna jack, specifically a zoomair card. I have three of them and did this to two of them. Line of sight goes for miles! :)

    2. Re:802.11 by Anonymous Coward · · Score: 0

      With a good amp, antenna, and enough height, I've seen it go 10-15 miles. Pretty neat.

    3. Re:802.11 by Anonymous Coward · · Score: 0

      I'm glad y'all are posting this with your mildly obfuscated email addresses out there in the open. I wouldn't want the FCC to have to expend big bucks tracking you down to issue the cease-and-desist orders for illegal power boost on your equipment.

      Anybody know what the URL is to let the FCC know about these punks?

    4. Re:802.11 by Llama+Keeper · · Score: 1

      There is an ISP where I live that offers up to 1.3MB wireless internet access using this technology..... they hack the antenna and use some cool repeater technology to get this accomplished.... we are talking cheap high speed and when faced with dealing with U.S. Waste or Linux geeks with a cool idea..... yah thats why my office is connectied via wireless... and with the kick ass caching server they just put in I get slashdot cached at 11MB.

      Isn't technology great... P.S. they use Aeronet cards for this......

      --


      Rule of Life Number 2: Remember, it can all go to hell at any minute. --Jimmy Buffet
    5. Re:802.11 by zenray · · Score: 1

      I looked at your setup and I was supprised to clearly see the MAC address. Don't reveral any more information about yourself than you have to. Better to be safe and guard your privacy. To make this on-topic, IMHO every wirless connection needs to encript it's data stream.

      --
      zenray
    6. Re:802.11 by dattaway · · Score: 2

      I looked at your setup and I was supprised to clearly see the MAC address.

      It really is a conspiracy by the Clinton administration to prevent consumer privacy by having funny rules about encryption. Visit my wireless lan in Starkville, Mississippi and send your president a letter about how you would like freely distributable encryption. I'm sure the Secret Service are going to get lots of these querries from a great deal many other places too.

      Here's what you need to know:
      gateway: 192.168.1.1

    7. Re:802.11 by TRoLL. · · Score: 0

      my MAC address is 00:DE:AD:00:BE:EF

    8. Re:802.11 by Cramer · · Score: 1

      Get a clue and stop being so damned paranoid. Machine A has to know machine B's MAC to talk to it. (That's what ARP is all about.) Next thing you're going to suggest is hiding our IP addresses?

    9. Re:802.11 by Anonymous Coward · · Score: 0

      Next thing you're going to suggest is hiding our IP addresses?

      Good point! One could say the following could help protect a wireless lan:

      Blocking MAC hardware addresses from unathorized sources,

      but that won't work, because the game of intrigue is such a fun area:

      Spoofing MAC addresses can be done on the victim's network, which blows that whole idea out of the water,

      ...and that is why unrestricted encryption is manditory in a modern network to prevent denial of service attacks by ensuring hosts are authentic and secure. If your government outlaws such, they open themselves to terrorists and shoot themselves in the foot.

      Politics and spooks are a deadly combination

    10. Re:802.11 by zenray · · Score: 1

      Of course Machine A has to see Machine B's MAC address. This is how data is directed to you. I just feel that if cracker X wants to get it s/he should have to work for it. Why make it even easer than it already is? This is not to say that security by obscurity is OK, but restricting the information given out is a good general security policy.

      --
      zenray
    11. Re:802.11 by Anonymous Coward · · Score: 0

      Check out this page for external antenna modifications.

  10. Good thing. by code0 · · Score: 1

    Maybe wireless networking will become a reality.

    --
    ---------- I laugh at a dumb SysAdmin.
  11. Long distance too... by layer1 · · Score: 3
    If this is the same WaveLan from AT&T I used a number of years ago (and it probably is)...

    It is very cool, You can hook up high-gain directional antennas to the bridges and get upto a 5 mile (I got 1.8 mi. easily) point-to-point wireless link. Might want to check if the frequency if FCC OK first though - I worked for the USAF, so it didn't matter to me &lt grin &gt.

    1. Re:Long distance too... by XenoWolf · · Score: 3

      Actually, As I mentioned in my posting above, I have worked with 802.11b stuff. I don't know if Wavelan has always been DSSS or if it started out as FHSS, like some Motorola chipset stuff, but it's always been 2.4 GHz and thus easily amplified with common antennae. As far as the FCC is concerned, these devices are of such low wattage that they don't even care. And as far as distance is concerned, I've gotten 15 miles out of a similar device with a 23 dBi antenna at around 7 degrees of coverage. Fairly impressive, IMHO

      --
      XenoWolf The Original - Since 1993
    2. Re:Long distance too... by TRoLL. · · Score: 0

      Yeah. The 2.4GHz cards are only around 50mW too I think. The older 900MHz WaveLAN cards ran about 200mW. These are less susceptible to "rain fading" and vegetation attenuation. Despite having bandpass filters on the cards paging services can still be a problem if you live close to a transmitter, otherwise they are probably better for longer distance networking than 2.4GHz or 5.8GHz equipment.

    3. Re:Long distance too... by Cramer · · Score: 2

      As I understand from looking at some of the earlier hardware (3 years ago to present), the older hardware (1 and 2 mbit) is/was FHSS -- you could program the hop times on some cards. The new hardware uses DSSS as that's about the only way to get into the higher speeds and ranges at the same power levels.

      Every card I've ever been "allowed" *grin* to take apart had Raytheon transmitter components. In fact, they were all OEM Raytheon Raylink adapters. (Breezecom, WebGear, a few "non-companies"...) I don't know what AT&T put in their cards...

      [I would caution people thinking wireless is the holy grail... the transmitter may not fry you and your pets, but it can interfere and even in rare cases damage components inside your computer. My breezecom card does interesting things to audio playback and messes up a few VHF channels. (If I look closely, I can see pixel interference on the screen too.)]

    4. Re:Long distance too... by omarius · · Score: 1
      1) Yes, they are the same AT&T product that you've known and loved. :)

      2) WaveLan uses public bandwidth to broadcast - 10.4, I think. I should know this, since I'm the tech guy for a WaveLan reseller. (Read: should lay off the beer).

      -JD

  12. Linux not supported by SEWilco · · Score: 2

    Specifications do not mention Linux support. Several other OSes are listed...although one is "Novel" and the "Windows CE" product no longer uses that name.

    1. Re:Linux not supported by ajlitt · · Score: 2

      Well, then. That settles it. It couldn't POSSIBLY work with Linux, right?

      Seriously... it's probably based around the Lucent Wavelan IEEE chipset (what lives in the Apple Airport and others) as that's the 11Mbit chipset that they've been selling. There is already a working driver for these devices.

    2. Re:Linux not supported by x00 · · Score: 2

      Well going to the "Support" link then going to the "Software Libray" open gave me some nice drop down boxes where one of the OS's listed was linux..

      I ended up with <a href="http://www.wavelan.com/support/software/desc ription.html?id=211">this</a> link.

      You have to have the PCMCIA services source to install & use it though

      --

      --
      May contain traces of nut.
    3. Re:Linux not supported by SEWilco · · Score: 1
      Linux is not supported, although Linux may support it.

      That is... although there is a Linux device driver which might work, Linux is not listed as an OS which the hardware is claimed to work with.

      There are Linux drivers for wireless devices from other companies but those drivers do not work with all the devices from that company. In at least one case, the company is providing development info for some cards but not other similar ones.

    4. Re:Linux not supported by mindstrm · · Score: 2

      Well... on that note.
      I use a Lucent 2Mbps 802.11 card on my laptop, and when I got my hands on an 11Mbps version, I slapped it in, and linux gave me two nice positive beeps.. and it seemed to work.. but then it didn't. Couldn't tcpdump, couldn't communicate with the other hosts on the lan.... so perhaps we needa bit of driver tweaking. (I am using the latest wavelan drivers)

      Hey.. it didnt' crash though..

    5. Re:Linux not supported by Cramer · · Score: 1

      Just a guess, but maybe the new card powered up in 11Mbit mode. It's certainly not going to be able to talk to a 1MBit card like that. Or maybe it's using a different signalling system.

  13. drivers by Garfunkel · · Score: 1

    The wavelan drivers are now currently in the standard pcmcia-cs distribution too. And from my experience they work just as well as the ones from Lucent.

    --
    -jay
    1. Re:drivers by Anonymous Coward · · Score: 0

      Actually, the wavelan_cs driver that is in the standard PCMCIA package doesn't support the 802.11 cards, only the old 2.4G non-802.11 cards. However, in the contrib directory there is a wavelan2_cs driver, which is what I use. Works like a charm. Also, incidentally, that driver is not 100% open source. You'll note that the libhcf-i386.a library source isn't distributed...

  14. Health Side Effects???? by Anonymous Coward · · Score: 2


    I need to get my home computers networked and I am a little worried about bombarding my house w. radio waves 24/7.

    Between my cordless phones and a wavelan network, I am thinking about subjecting my family to a very large dose of 2.4Ghz.

    Can anyone give my pointers to studies showing that 2.4Ghz transmiters are completely harmless to people (esp pregnant women and small children) cats, fish and plants????

    Thanks!

    trikster2@hotmail.com

    1. Re:Health Side Effects???? by Anonymous Coward · · Score: 0

      Watch out! You're already being bombarded 24/7 by radio waves. Make the walls out of lead if you're looking to avoid the side-effects. Having a wavelan network set up at home only contributes negligably to the amount of radiation you're subjected to day-by-day. From the tests known to man, this does not pose much of a problem. Early fetal development and radio transmissions may or may not interact in a significant way. The anti-choice advocates have convinced the U.S. not to allow such testing for scientific or medical purposes, so we don't nor won't know. Living close to giant radio towers would be about all I'd worry about (like within a half mile to mile depending on wattage & height). Can't do anything about the other stuff. For safety avoid having electromagnetic fields present near your head and your genitals.

    2. Re:Health Side Effects???? by pe1rxq · · Score: 1
      These are LOW-power devices, nothing compared with a normal microwave which operates in the same frequency band (2450Mhz to be exact). (This is why they made this band available for general use anyway)

      Grtz, Jeroen

      --
      Secure messaging: http://quickmsg.vreeken.net/
    3. Re:Health Side Effects???? by dattaway · · Score: 4

      Considering your microwave oven is 1000 to 2000 watts and your wireless network card is a wimpy 100mW, good luck at getting it to heat a cup of coffee or your brain.

    4. Re:Health Side Effects???? by mindstrm · · Score: 5

      Well. That's a tough one. Scientifically, how do you prove that something is harmless?

      Here's a few facts though.
      2.4Ghz is not ionizing radiation. It can't break down molecular bonds. (This is the chief cause of damage from higher-energy radiation, UV and up...)

      2.4Ghz is the frequency (well.. 2.45) that most microwaves ovens run at. They don't mutate your food.. they just warm it up. (Really, that's all they do.. warm it up by vibrating polarized molecules.. chiefly water)

      These network cards use in the neighborhood of 50 to 100 milliwats of power. Your cellphone probably uses about 10 times that. Your microwave only cooks things because it uses 6000 times that (600 watts)

      If you turned your microwave on, with the door open (if you could) and stood there.. or if you just had a leak,the only thing that would happen is you would heat up. it wouldn't mutate your DNA, it would just increase your body temperature. Granted, if this happened rapidly, or in a focused area, it could be dangerous.... but that's all it does.

      And the proof is in society. So far,there really aren't any problems.

    5. Re:Health Side Effects???? by TRoLL. · · Score: 0

      If you turned your microwave on, with the door open (if you could) and stood there.. or if you just had a leak,the only thing that would happen is you would heat up. it wouldn't mutate your DNA, it would just increase your body temperature. Granted, if this happened rapidly, or in a focused area, it could be dangerous.... but that's all it does.

      Actually, I believe, due to the design of most microwave ovens very little radiation actually will escape the cavity even if the door is open. In fact in microwave ovens there are "hot spots" where the radiation is distributed unevenly.

    6. Re:Health Side Effects???? by Anonymous Coward · · Score: 0

      My understanding is that 2.4Ghz is the resonant frequency of a water molecule. So microwave energy transfers easily to water, and then thermally conducts to other materials.

      Unfortunately, I've also heard it can affect DNA in much the same way. Now, the body *should* be able to repair minor DNA damage. But, eventually, you could lose out and develop cancer.

      The other factors to consider are distance and power. Energy falls off with the square of the distance. And Power is in the milliwatts range.

      Personally, I'd worry a heck of a lot more about cell-phones. Putting a transmitter, with orders of magnitude more power, that may or may not be well designed (to reduce radiation through your skull), right next to your head, can't possibly be good for you.

      As for the proof being in society? How much more likely are members of developed countries to develop cancer than citizens of undeveloped countries? You can analyze the data that way, to determine if there is a problem.

      You might also check with amateur radio folks. They probably have a better idea of what's safe. If for no other reason that they've been dealing with microwave transmitters and RF burns for decades.

    7. Re:Health Side Effects???? by swilly · · Score: 1

      The reason microwave radiation heats up food and liquids isn't the power output, but because it is the exact frequency required to get water molecules to resonate (think of vibrating molecules), which causes the water in a substance to heat up. The wattage only determines how much microwave radiation is emitted. Radar is in the same frequency range, but doesn't cause water to resonate, so it won't fry you (and I imagine that most radars are probably far more than 2000 Watts).

      I don't have my handy-dandy chart of the electromagnetic spectrum handy, so I'm not sure where 2.4 GHz fits in.

    8. Re:Health Side Effects???? by dattaway · · Score: 2

      The reason microwave radiation heats up food and liquids isn't the power output,

      Try again. My experiments with microwave attenuation, S band 2.4GHz and X band 10GHz, show otherwise. I found most organic things absorb high frequencies into heat. Here's a quote from this link that looks into microwave behavior:

      It's a common misconception that the microwaves in a microwave oven excite a natural resonance in water. The frequency of a microwave oven is well below any natural resonance in an isolated water molecule, and in liquid water those resonances are so smeared out that they're barely noticeable anyway.

      Here are some more unwise things to do with microwave ovens and a link to microwave myths.

      More interesting stuff:

      Here are some more ways to destroy your microwave oven (not recommended!)

    9. Re:Health Side Effects???? by pe1rxq · · Score: 1
      My understanding is that 2.4Ghz is the resonant frequency of a water molecule. So microwave energy transfers easily to water, and then thermally conducts to other materials. This is not true, water molecules heat up at any frequency, the higher the better. But at the same time higher frequencies penetrate substances less. The microwave works at 2450Mhz, at which point you have optimal performance, it heats up enough and penetrates just deep enough (about 12cm)

      Grtz, Jeroen

      --
      Secure messaging: http://quickmsg.vreeken.net/
    10. Re:Health Side Effects???? by Lord_Care · · Score: 1

      *Hmmmmmmm and you have a mobile phone pointing at your head WaveLan 100mw mobile Ericsson 18s 1W

  15. Re:Price ... well sort of. by Non-Newtonian+Fluid · · Score: 2
    It should be pointed out that the desktop PC user will need to buy both the PC Card _and_ the PCI / ISA adapter:

    The ISA/PCI adapter is delivered as a sole adapter; the PC card, which completes the solution, has to be ordered as a separate item.

    So that comes to around $250 per machine, plus the gateway. A little rich for my blood still....

  16. Huh? by Dodger_ · · Score: 3

    I don't see this as much more than a re-introduction than their Bronze line of Wavelan cards. The announcement doesn't mention anything about encryption and the price isn't even that good. At CDW you can pick up a Wavelan Gold PCMCIA card for $190 and you get 128 bit hardware encryption. The Bronze(no encryption), is only $128, much cheaper than their "intro" price of $179 for PC cards. The only good thing I see of this is that they are finally releasing their PCI cards, as I can't seem to find them anywhere. I'll definately be picking some of these up for my Workpad z50.

    --
    Dodger_
  17. Aironet at Tcl/Tk Conference by Col.+Klink+(retired) · · Score: 3

    At the Tcl/Tk Conference in Austin (Feb 13-18), Usenix provided a free Aironet wireless network. They had about 100 (I don't think they ran out) 11Mb PCMCIA cards that you could check out. You gave them your credit card and if you didn't return them, they would charge you $395. They provided drivers for Windows, Linux, BSD and Mac.

    They worked well when they worked, but they had a pretty limited range. They didn't work, for example, at the podium and thus no presenters were able to do any "real" demonstrations.

    This was the first time Usenix tried offering such a service, so it's understandable that it wasn't perfect. I hope they continue to offer this service, but don't think they're close to eliminating traditional network services just yet.

    PS: The ISP was jump.net.

    --

    -- Don't Tase me, bro!

  18. Is the base station necessary? by RedDirt · · Score: 1

    I'm wondering if it's strictly necessary to buy one of the base stations if I already have a "router" machine? From what I can garner from the specs on the cards, it should work but I'm not sure if there is some subtle requirement for the base station.

    --
    James
    1. Re:Is the base station necessary? by el_guapo · · Score: 1

      AFAIK the base station is nothing but (this is based on the ones we use at work) a PCMCIA slot attached to an ethernet interface, you actually plug one of the PC cards into the slot - so these would NOT be neccesary for 2 machines to talk to each other if they both had wavelan nics

      --
      mas cerveza, por favor politically incorrect stu
    2. Re:Is the base station necessary? by Cramer · · Score: 2

      Physically, yes. However, that's not all it does. There's good bit of processing inside there. For the simple case of two machines, an "ad-hoc" network is perfectly ok -- both cards talk directly to each other.

      In an "infrastructure" network, all the cards talk to an access point. This has the net effect of doubling the range between mobile units. As a mobile unit moves around, it can switch from one AP to another -- which ever one has the best signal, just like a cell phone. With enough access points placed throughout a building, one can move freely about the complex and never lose connectivity.

  19. Re:Price ... well sort of. by RaZ0r · · Score: 1

    Of course you need to buy the PCI/ISA adapter and the PC card. I'm not sure what the purpose of the Gateway is, because I know I could just use sygate with the PCI/ISA adapter to gain internet access on any lan. If anybody would like to explain the purpose of the gateway, please go ahead and explain it for me:)


    Lets stop praying for someone to save us and save ourselves. ~KMFDM

    --


    - Think for yourself, question authority.-
  20. Re:Health Side Effects???? ; ) by CGU_Grey · · Score: 1

    Glow in the dark.

    --
    Parents Against Kuro5hin
  21. huh??????????? by el_guapo · · Score: 2

    What's with all the hullaballoo here? We have these at work (for a few months now), not the inexpensive one's listed here, but 11 mbs nonetheless, and we RARELY, no, more like NEVER get an 11mbs connection. On a good day we get 4, but more often than not, 2. Not trying to start a flame war, just my $.02

    --
    mas cerveza, por favor politically incorrect stu
    1. Re:huh??????????? by Tigger's+Pet · · Score: 1

      Sorry, but does that surprise you?? On a 'standard' 10Meg Ethernet link, you are very lucky to get as much as 6Meg (and that's as a sole, switched device. On a shared segment, you would also be lucky to get as much as 2Meg to each individual machine.

    2. Re:huh??????????? by danderson · · Score: 2

      From what I understand, 11 mbs is the maximum rate the cards can transmit at, not the throughput. If there is interference, the cards will select a lower rate automatically (like 5.5, 2 or even 1) to (try to) ensure that the data remains valid. Even so, the management overhead (like acknowledgement packets) are transmitted at only 2 mbs.

      --
      This is supposed to be great art. So why does it look like a bunch of decapitated naked people? -- Calvin
    3. Re:huh??????????? by GrammarPolice · · Score: 1
      ...not the inexpensive one's listed here...

      I'm really impressed with the grammar in these comments. Not a stray apostrophe in the lot, until I got down to here. Amazing, compared to the Katz article I read the other day. Perhaps technical content attracts technically correct people?

      Anyway, it's not one's, it's ones. Please do better next time.

      --

      Verily hath their moderation points been wasted upon me.

    4. Re:huh??????????? by el_guapo · · Score: 2

      ok - maybe errrr, i definitely wasn't clear, (apologies for the spare apostophe) BUT - what I meant was we never get a raw connection of 11mbs, apples to apples would be the bs "10mbs" of standard ethernet. You might not get 10mbs of throughput, but you do get a 10mbs connection. We get like 4mbs raw, which might equate to less than 2mbs real throughput. To get 11mbs (raw, for lack of a better term) we practically have to duct tape the wavelan NIC to the access point's antenna (I believe a proper use of an apostophe). Again, trying to be informative, not snooty.

      --
      mas cerveza, por favor politically incorrect stu
    5. Re:huh??????????? by barleyguy · · Score: 2

      I think this poster's native language is Spanish. And I bet his English is better than your Spanish. Anyhow, grammar flames suck. Get a life.

      --
      --- "So THAT's what an invisible barrier looks like!" - Time Bandits
    6. Re:huh??????????? by Smack · · Score: 1

      Well, I suppose that they're still 10 times better than a 1mbps wireless Ethernet card.

  22. Lucent driver is *not* a source driver by Anonymous Coward · · Score: 4

    Unfortunately the Lucent drivers are binary only.

    The "source" tarball contains a skeleton C code which links against a binary module to do the actual work.

    So, you get all the great disadvantages of binary drivers: x86 only, no support for Linux 2.3 or BSD, etc, etc...

    The older generation of WaveLan cards have been supported by a truly open source driver for years now

    1. Re:Lucent driver is *not* a source driver by whoop · · Score: 1

      Do either the binary or sourced drivers do the encryption stuff I see on the Gold card? I've been looking at these cards for a while now, but I can wait a few weeks if they'll lower the prices. :)

    2. Re:Lucent driver is *not* a source driver by Anonymous Coward · · Score: 0

      There _is_ an open source 802.11 driver for Lucent cards. I played around with it for a bit trying to get it to work with my Powerbook. Never had enough time to get it working. Unfortunately, I don't have a URL at hand.

  23. "but they quite quick. " by Anonymous Coward · · Score: 2
    Have you been taking English lessons from Tarzan?

    :-)

    1. Re:"but they quite quick. " by leonbrooks · · Score: 1

      Have you been taking English lessons from Tarzan?

      No, cobber, from Manuel Garcia O'Kelly. (-: Dial MYCROFTXXX for more information :-)

      --
      Got time? Spend some of it coding or testing
  24. BLuetooth != Wireless ethernet replacement by ajlitt · · Score: 1

    Bluetooth was not meant for short-haul peer to peer lans. It was designed to go short distances (~10ft or so) for interconnecting personal computing devices. It will link things like PDAs, cellphones, digital cameras, and other personal gadgets. Think of it like IrDA but without the Ir.

  25. Maximum theoretical by summdood · · Score: 1

    I was wondering ... what the maximum theoretical bandwidth of air?

    1. Re:Maximum theoretical by Anonymous Coward · · Score: 0

      is the answer 100% ?

    2. Re:Maximum theoretical by Anonymous Coward · · Score: 0

      Well... air eats a lot of the frequencies from hard UV upwards, say standard blue light to be on the safe side (dust scatters it a tad, so maybe green for v long range)

      Cant be bothered with looking up the wavelengths, but the best bandwidth you can reasonably get through air is a fair way beyond what we can affordably modulate.

      Limit on data rate is about 1/2 frequency so:

      data rate (bps) ~ 1.5e8/wavelength (m)

      If you want it directional, short range & fast you might be able to have fun with "light strings".

  26. Really Glad by ggeezz · · Score: 1

    I'm really glad to see this. I'm from southwest Virginia, and our best bet at broadband might be LMDS (Virginia Tech bought the spectum licenses for this end of the state and parts of surrounding states). LMDS (Local Multipoint Distribution Service) uses the 802.11 standard and is really cool. Right now the equipment is really expensive. Of course we need a lot more range but low priced local wirless cards are a good start. Watch out. . . the hillbilies are coming online ;-) (I can say that cause i is one.)

  27. Re:Price ... well sort of. by MarkKomus · · Score: 2
    The gateway lets you go from the wireless side of your lan to the wired side. Basically a bridge from wireless to wired.

    The company I work for actually sells gateways too www.wilinx.com

  28. Hardware + tarballs + bootdisks = IOI SCSI by morzel · · Score: 3
    How many vendors have tarballs on their sites?
    IOI SCSI has not just the source tarballs of the Linux drivers for their SCSI cards, they also provided the necessary bootdisks for a number of distros on the driver CDs which is - as I need not explain - uber cool.

    Their cards are based on the ignitio chipsets, which makes it quite performant and stable under Linux...
    And they've been doing so long before the linux hyped.


    Okay... I'll do the stupid things first, then you shy people follow.

    --
    Okay... I'll do the stupid things first, then you shy people follow.
    [Zappa]
    1. Re:Hardware + tarballs + bootdisks = IOI SCSI by technos · · Score: 2

      They are very cool.. I remember snagging a Slackware bootdisk from them so I could install 1.2.xx on another vendors Initio controller. Sent them an email about the difficulties I had getting the ball rolling (the boot disk intermittantly hung), with repeated mention that it wasn't their card. They responded quickly, nicely, and to the effect that it would indeed be fixed quickly. They then sent a 'problem has been fixed' email a couple of days later.

      I now own two of their controllers.

      --
      .sig: Now legally binding!
  29. Re:drivers (No, you are wrong) by Garfunkel · · Score: 3

    Well the standard drivers seem to work really well with our 802.11 cards. The 802.11 drivers I think have only been included in the last two releases (3.1.9 and 3.1.10 I think). Please see
    http://www.fasta.fh-dortmund.de/users/andy/wvlan /
    as per the pcmcia-cs documentation.

    --
    -jay
  30. Re:Price ... well sort of. by RaZ0r · · Score: 1

    Thanks for the info....very appreciated.


    Lets stop praying for someone to save us and save ourselves. ~KMFDM

    --


    - Think for yourself, question authority.-
  31. 802.11 implementation by pouwelse · · Score: 5
    The Wavelan is only one of the implementations of the IEEE802.11 standard and will probably drop further in price. The competition is picking up. Harris annouced a price of $14 for the components of an 11MBps wireless LAN card...

    Here at our university we measured the range of the Wavelan produkts years ago. This new 11 Mbps still won't cover more then 40 Meters inside a building. Solid walls cannot be penetrated with the signal strength of only 100mW@2.4GHz . When the WaveLANs are used outdoors, the range is increased to 500 meters or more provided there is line of sight. We also tested that a small FM signal can block all the communication of the supposed robust CDMA radio.

    Probably the big break will come from bluetooth this standard is technically superiour to the IEEE commity design. It is cheap enough to be build into laptops, PDAs, mp3 players, etc.

    The Linux driver for the WaveLAN cards are only partly distributed in source code. A binairy exists in the distribution to talk to their MAC chip. They will not disclose the interface to they propierary chipset...

    Just my 5 eurocents...
    Johan.

    1. Re:802.11 implementation by tjansen · · Score: 2

      >Probably the big break will come from bluetooth this standard is technically superiour to the IEEE commity design.

      Bluetooth is designed for short ranges only. The first devices will have a range of 10 meters, later they will extend the specication to up to 100m for some devices...

  32. Re:Price ... well sort of. by paRcat · · Score: 1

    Sooo... why couldn't a linux box do the same thing?

  33. Offtopic, but I could use some advice. by FallLine · · Score: 2

    Hello,

    I'm thinking about possibly wireless networking a few computers in my house. The trouble is that it is a rather large house with old fashion walls (e.g., thick and plaster) and i'm not too sure how capable these cards are in such an environment. Anyone have experience with this? I'd need to run the main card on my linux box (e.g., need linux support), and, say, 2 PC PCI cards, and one laptop card. What might this cost? What brand would you recommend? I'd like to get atleast 10mbps, if it doesn't cost too much.

    I'd appreciate any advice. Thanks

    1. Re:Offtopic, but I could use some advice. by andrews · · Score: 1

      If your walls are plaster on metal lathe, forget about it. If they're just wood and plaster, you should be able to cover a house with one card in your router or accesspoint.

      I use these on my office campus and cover a typical 20,000sqft. metal stud wall office building with just one access point.

  34. They quite quick yoda by Anonymous Coward · · Score: 0

    They quite quick.

    For lucent company nice

    Wavelan opensource drivers for Linux has

    Distances up to 1500 feet they handle

    Vendor tarballs on their site has

  35. why does one need the $350 Gateway? by 23 · · Score: 1

    Hi, this is a serious question:

    If I already have a box acting as a (cable modem-) router/firewall/masquing machine and put a PC card into that one, so all the other talk to that as my gateway, why would I need the extra "Residential Gateway" with a $350 price tag? Does it have some extra functionality or is that the price of a box doing what I described? Maybe can it handle masquing the dreaded H323 protocol (Netmeeting et al)??

    Insight would appreciated.

    Roland

    1. Re:why does one need the $350 Gateway? by Anonymous Coward · · Score: 0

      Yes you need the residential gateway. What do you think is going to pick up the signal that the card in your PC is sending out. The residential gateway is a transeiver that connects to the physical network. Do you really think your linux box has a transeiver built into it that can pick up radio waves?

    2. Re:why does one need the $350 Gateway? by agravaine · · Score: 2

      Dork! Spare us the sarcasm and use your head when you read peoples' posts.

      He's not asking if his linux box cabn magically pickup radio waves, he's asking whether he can install a $179 card in his router and a $179 card in his (say) laptop, and have the two talk together, or whether he *needs* the seperate, external $350 (>> $179) residential gateway which has (DHCP, NAT, Ethernet) nothing his router can't do already!

      A partial answer: the hardware can do it (I know a guy who works on them) but I dunno whether the GPL drivers can. (But if i had to bet I would guess they do...)

    3. Re:why does one need the $350 Gateway? by Xenna · · Score: 1

      This post is evidence that you don't need one as it was typed on a Win95 laptop with an Aviator PCMCIA card. My Linux server in the attic has the other Aviator card and the Cable modem.

      The connections are masqueraded by the Linux server.

      The Aviator's manual talks of an 'infrastructure' mode of operation for which a base station is required but I'm not sure about the advantages.

      Xenna

    4. Re:why does one need the $350 Gateway? by Anonymous Coward · · Score: 0

      Rub my testies.

    5. Re:why does one need the $350 Gateway? by Matt2000 · · Score: 1

      It seems that in the simplest configuration you do not need either the Gateway or the Access thing. Read here for some info, along with a link to a pretty large PDF which is the user manual for the WaveLan PCI card.

      Hotnutz.com - Funny

      --

  36. As a side note..Alternative 'base stations' by tidepool · · Score: 1
    Since WaveLan cards apply to the IEEE802.11 standard, they also work with Apple's Airport base station.

    This seems like a great option for those home users with both iBook's / Powermacs, and their linux / unix boxes and laptops.

    The cost of the airport is cheaper than the mentioned wavelan base, but I have heard it doesn't work quite as well. Anyways, to each his own.
    Ben Brewer
    brewer@nullified.org & tidepool@suspicious.org

  37. Use Apple Airport Basestation as gateway by JeffL · · Score: 1
    The Lucent Wavelan IEEE cards can use the Apple Airport Basestation as their hardware gateway. With an educational institution cost of about $250 it was 1/4th the price of the Lucent basestation.

    It requires a Mac running MacOS 8.6 or higher to initially configure the Airport Basestation, but since I set it to run in bridging mode on startup it has run perfectly without a Mac around.

    At this time, this was the cheapest way to get the Lucent cards on a bridged solution as neither the Lucent nor GPL driver can currently run the card in promiscuous mode (necessary for the kernel bridging code).

    1. Re:Use Apple Airport Basestation as gateway by Incongruity · · Score: 1

      The problem that I see with such a solution, though I totally dig the quick thinking in regards to using an Airport basestation, is range. The Wavelan base station, from what the press release and specs for other products are claiming the wavelan system is capable of 1500 feet, whereas Airport boasts 1/10th of that. Additionally, looking at the other product offerings from Lucent, they allow an optional antena to boost the range. Alas, the airport doesn't. That extended range is exactly why I would pay more... how much more? We'll see.

    2. Re:Use Apple Airport Basestation as gateway by yuriwho · · Score: 1

      From what I can gather, the 1500 ft spec is related to connection speed. There is a tradeoff between these. ie 1500ft at 1Mbps and 150ft at 11Mbps are achievable with the same hardware. Apple's airport only supports the 11Mbps and thus is limited to 150ft. This may change soon as Apple is using Lucent technology in their basestation and a firmware/software upgrade may be all that required.

      The Bottom line is Lucent is pushing the edges on this technology and I think they are the company to go with for wireless.

      --
      no sig.
  38. DELL is also going Wireless by Xenna · · Score: 1
    They're offering 11 Mbps Aironet PCMCIA cards for $139 and PCI cards for $179. Not a bad deal. Does anyone know if the Aironet stuff has Linux drivers?


    I just received my Webgear Aviator 2Mbps cards last week and they work well but 2 Mbps is a little slow for my desktop machines. With 11 Mbps I'm tempted to get rid of all those nasty cables...


    Dell article: http://www1.pcworld.com/pcwtoday/article/0,1510,14 402,00.html

    1. Re:DELL is also going Wireless by Anonymous Coward · · Score: 0

      Aironet cards *are* supported, however the driver is not in the pcmcia package. I have a copy of it somewhere.

      FreeBSD also has drivers for the Wavelan and the Aironet cards.

      -Pat

  39. URLs by Russ+Nelson · · Score: 3

    L0pht (@stake)'s wireless network.

    Midcoast Wireless
    -russ

    --
    Don't piss off The Angry Economist
  40. I told them about Open Hardware Certification by fjin · · Score: 1

    I didn't read /. articles more than that main page announcement, and decided to be initiative today. I sometimes tell to Hardware Vendors about that Certification, so they might even notify it's existence.

    And I do this because I like to see more Open Hardware. I like to see the kind of future where every Hardware Vendor must release specs of their product - if they want to get significant market share. That's my share of doing something toward it.

    That's my copy of feedback to that Vendor:

    I read from http://slashdot.org that you have Linux drivers and even Open Sources. Great! I'm not a coder, so I didn't even checked the depht of your hardware documentation, but if there are _all_ information that is needed to program drivers to you products you can get Open Hardware Certification (http://www.openhardware.org), it includes right to be included the Catalog of products with that Certification. There is not many products, but you have possibility to make that certification count.

    I certainly would buy products where drivers are available surely in future. At least by coding (or paying someone else to code) those by self, when using good documentation.

  41. No Wires Needed has Linux drivers too by Raindeer · · Score: 2

    The Dutch company No Wires Needed has some excellent hardware. I belief Compaq is buying their stuff now. At the following site you can find a Linux driver for their Swallow 550. http://www.xs4all.nl/~bvermeul/swallow/

  42. Lucent by gUmbi · · Score: 1

    We have the 11mbps cards with outdoor attennas hooking up two buildings about 2000 feet apart. Actual throughput seems to be about 4-5 mbps (with latency in the 3-4ms range). You should see the shielding on the attenna wire running from the roof. About 7/8 inch outside diameter, about 2mm inside diameter.

  43. Neat potential by killbill · · Score: 2

    I ordered a Webgear Aviaitor kit last week (backordered from buy.com). As near as I can figure, for around $150 this kit gives you two PCMCIA cards AND two ISA adapters that can be used with these PCMCIA cards to put them in a desktop. They run at 2MByte (not MBit) per second. Extra cards for new "nodes" run around $75 each.

    This is much slower then the cards announced here, but you can do an awfull lot with 2MB per second, and this $150 price will be darn hard to beat.

    My current plan is to take an old 486 laptop with only 8MB ram and small hard drive and install a Linux configuration that includes only kernal, networking, and an X server.

    The window manager (Gnome/Enlightenment) and all my applications will then run on my server in the basement, with the display pointed to the laptop. As a side note, this type of configuration is supported by default by Linux, but is at best a terrible kludge with winXX.

    This will make the laptop a thin client that can sit on the kitchen table, or roam around the house, but with the full power of my server at my fingertips.

    The big drawback will be the 640x480 resolution of the older laptop system, but I can work with that. The 8Mb on the laptop will likely just barely enough to handle managing the display and networking code.

    Adding a cheap and semi-legal low power FM broadcasting homebuilt kit to the sound card on the same server should allow me to set up a simple web based interface to play any of my MP3's and pick them up with a walkman, or any other stereo in the house.

    Note that this solution is totally tweaked towards bang for the buck, not high performance (sound quality, bandwidth, etc).

    However, it is dirt cheap (should be able to do the whole deal for less then $200), and all relies on proven, flexible, and established technology, and will likely be plenty "good enough". Support for the Webgear Aviatior cards is opensource (as far as I can tell), and is already a part of the kernel (as far as I can tell).

    If anyone is interested in the nuts and bolts of this procedure once I get everything working, I will be happy to post detailed instructions and parts sources on my site. The kit is backordered, so it could show up tomorrow, or sometime next century.

    Bill Kilgallon

    --
    Mathematically impossible requirements are technically not against policy.
    1. Re:Neat potential by figa · · Score: 1
      I realized this potential last week, and set up an mp3/webstation of the gods. I have my laptop connected to my server via the Aviator cards, and my laptop is hooked up to my stereo in the living room. The drivers worked out of the box for both the ISA card and the PCMCIA cards.

      I already had the laptop and server machine, so the total cost was under $150 -- less than a dedicated mp3/DVD player. I got the cards from buy.com, and I used a $10 new buyer discount.

      The only problem I'm facing right now is slight mp3 skipping. I'm NFS mounting the mp3 directory, which isn't ideal, but I needed it for a party last weekend. It would work flawlessly if there was some modest buffering in xmms file playback. I'd use a streaming server, except it isn't particularly flexible, and the 2Mbyte connection can't handle NAS. Time for an input plugin to XMMS.

      In the meantime, if anyone has some ideas for optimizing nfs for large file access on a relatively lossy network, please post them.

    2. Re:Neat potential by killbill · · Score: 1

      (we should take this to email, sounds like we are thinking along the same lines)...

      I think you should shuffle things around to maximize your strengths, and minimize your weaknesses. Server parts are dirt cheap and readily available. Laptop parts are expensive and hard to find.

      What about playing the MP3's back from the server, instead of the laptop. To do this, you would have to do one of two things, and create a web interface to your MP3 player software.

      1) Run a shielded 2 wire audio feed from your server sound card to your stereo. Might be hard, might be easy. As long as you have heating ducts, it is always possible :)

      2) Buy a homebuild kit (or prebuilt kit if you can find one) that will broadcast FM stereo, hook it up to your server soundcard, and use this as another wireless channel. Audio quality will suffer some (you will go from near CD quality to FM quality), but it should still be pretty decent sounding. This way, your walkman, stereo, and car (when in the driveway) all can recieve and amplify the MP3's you are playing. Debco electronics (and probably about a gazillion other companies) has a kit for this (www.debco.com) for about $30. I have not tried it, so I have no idea what the sound quality is.

      3) You could also do both, and get the best of both worlds. This is what I will likely do (as my server is about 15 vertical feet from my stereo).

      If I could only get an IEEE 802.11 compact flash or serial adapter for my TRG Pro palm pilot, then we could REALLY have a sweet setup!

      Bill Kilgallon
      anyone with an interest, feel free to email to bill at kilgallonfamily dot com and we can hash through some configuration pro's and cons.

      --
      Mathematically impossible requirements are technically not against policy.
  44. Re:Price ... well sort of. by Foogle · · Score: 2
    It could.

    Why bother though. You've got to set up and administer the box, with both a WaveLan system and a regular Ethernet card. If you use the gateway, it will do it for you. Same result, different approach. Also, in most cases, I think the Linux PC would be more expensive, unless you already have one lying around.

    -----------

    "You can't shake the Devil's hand and say you're only kidding."

  45. Re:Price ... well sort of. by MarkKomus · · Score: 1

    If the linux box was set up properally it could probably do the same thing (I haven't tried personally so can't say for certain). We sell the product for those who don't want to have to set it up themselves.

  46. Linux drivers exist for WebGear Aviator cards by jpyle · · Score: 1

    Check it out at http://world.std.com/~corey/raylink.html

    I only post this because the story seems to suggest that only the wavelan cards are supported under Linux.

    Of course, the WebGear Aviator 2.4 cards that I have are only 2 Mbps, but that's good enough for me, because I'm using them to share a 256 kbps DSL connection. And I think they're a lot cheaper - I got 2 cards + 2 isa-pcmcia adapters for $110 at CrapUSA (that includes a $40 rebate).

    The Aviator 2.4 cards are also supported by NetBSD, and it shouldn't take all that much work to get the NetBSD driver to work for OpenBSD and FreeBSD.

  47. Re:Price ... well sort of. by Anonymous Coward · · Score: 0

    Hmm, perhaps because the gateway is something you just plug in and it works? No installing an OS, keeping it current with patches, worrying about the hard drive dying, etc. There are some things in life that are just better served by dedicated special purpose devices rather than a multipurpose PC running Unix.

  48. agreed, but market forces may prevail by Anonymous Coward · · Score: 0

    I agree that Bluetooth is not intended as a short haul LAN technology, but it be little surprise if end up adopting this role in certain areas.

    My reasons are: 1) Bluetooth has a mass market appeal, it will be very cheap, and it will be ubiquitous and have a lot of technology and support behind it, therefore it will be economically viable, if not entirely technological viable (the market place does not always care about technical purity). 2) Bluetooth may not become a short haul LAN technology in the work place, but in the home, I think that it will prevail. 802.11 will likely not become a player in the home market; and remain a player in commercial and "industrial" arena. The home market does not care about "LANs", people just want to entertainment and other facilities to connect together. Why have different wireless technologies when everything can fit under the Bluetooth banner 3) Bluetooth is being sped up (no surprises here) so will run at faster rates, although at the moment it runs at about 734kbps (once protocol overheads are removed from the wire rate of 1Mbps).

  49. This screams for wire-level crypto by Overfiend · · Score: 4

    With the proliferation of wireless devices like this, it seems to be more important than ever to make sure that we aren't sending unencrypted packets between machines.

    Does the 802.11 spec cover this, or is it just a connectivity protocol for wireless devices (I assume the latter)?

    900 MHz cordless phones have made claims to some sort of encryption for years, but I don't take what they put on the box at face value -- I suspect it's pretty weak stuff.

    Can somebody provide some pointers to IP-level cryptography? I'll be wanting to go with an in-home set up like this in the near future but I really chafe at the idea of how trivially easy it would be for people to sniff my packets. I realize that encryption is easily built into higher-level protocols, but I really like the idea of minimum disclosure to eavesdroppers, particularly for signals that otherwise wouldn't even leave my home (not everything is outbound to the ISP, you know).

    --
    Address-collecting spam robots don't know how to crack ROT13. Do you?
    1. Re:This screams for wire-level crypto by stripes · · Score: 3
      With the proliferation of wireless devices like this, it seems to be more important than ever to make sure that we aren't sending unencrypted packets between machines.

      Does the 802.11 spec cover this, or is it just a connectivity protocol for wireless devices (I assume the latter)

      802.11 has a encryption spec for it (I think the original "Wire Equivolent Privicy" had a 4-bit RC4 -- which is about worthless, thw Lucent Gold cards advertise a 128bit crypto, so I guess it got better).

      However I don't think that is the right way to fix the problem. After all if you transmit important data and it is encrypted over 802.11, but unencrypted out the cable plant, across the global backbone, and off to wherever you sent it, you have only fixed about 100 feet worth of a (possabbly) multi-thousand mile problem.

      Can somebody provide some pointers to IP-level cryptography? I'll be wanting to go with an in-home set up like this in the near future but I really chafe at the idea of how trivially easy it would be for people to sniff my packets. I realize that encryption is easily built into higher-level protocols, but I really like the idea of minimum disclosure to eavesdroppers, particularly for signals that otherwise wouldn't even leave my home (not everything is outbound to the ISP, you know).

      Exactly! Try looking at IPSEC, it is required for IPv6, and optional for IPv4. You could also just try to tunnel everything through SSH.

    2. Re:This screams for wire-level crypto by QzII · · Score: 1

      > 900 MHz cordless phones have made claims to some sort of encryption for years, but I don't
      > take what they put on the box at face value -- I suspect it's pretty weak stuff.

      We can often hear the incoming part of a conversation from our 900MHz phone on a 900MHz baby monitor.

      We never pick up the phone and here the baby monitor though.

      Maybe it was just a cheap phone?

    3. Re:This screams for wire-level crypto by Russ+Steffen · · Score: 1

      There are different types of 900MHz phones. The cheap ones a re 900MHz analog which are easy to snoop in on - they work just like the old cordless phones just at a higher frequency. The other two types are 900Mhz digital and 900MHz digital spread spectrum (DSS). I wouldn't claim that either digital or DSS is secure, but snooping them could only be done with a deliberate act, there is no way you could accidently pick those up on a baby monitor.

    4. Re:This screams for wire-level crypto by Cramer · · Score: 1

      I'm thinking the encryption is not so much to protect the information "end to end" but to protect the "over the air where bad people can hear it without me being able to stop them." Intercepting a wired communication is much more difficult that that of a radio transmission. Additionally, the wireless traffic is generally going to be "local" traffic.

      For example, someone places a wireless network behind their corp. firewall so the workers can use laptops around the office -- or place a printer where there's no drop, whatever. This is traffic you certainly don't want the rest of the world to be able to access or even observe. Latching oneself into the cable plant would be far harder than driving through the parking lot with a receiver in the trunk...

    5. Re:This screams for wire-level crypto by stripes · · Score: 2
      Latching oneself into the cable plant would be far harder than driving through the parking lot with a receiver in the trunk...

      "Latching oneself into the cable plant" isn't needed if the office uses hubs. Walk into an office, and use the ethernet jack there. Frequently even the confrence rooms have them. Driving through the parking lot isn't likely to get you much at my office, 802.11 seems to have a hard time escaping the semi-reflectave coating on the windows (which I susspect was put on to make it impossable to get FM radio reception inside!).

      However smartass aside, yes, it is simpler to tap into a wirless net then a wired one, at least if you are talking about an office LAN. If you are talking about a Internet connection from home, there are generally wires outside that are fairly easy to tap into (the demark for my T1 may be inside, but it is obvious which wires coming into the house are the T1!). Plus if the tap is being done by the ISP, or the LEC (presumably as the result of a goverment order) it is even easyer then them driving anywhere near the transmiter!

      I'm thinking the encryption is not so much to protect the information "end to end" but to protect the "over the air where bad people can hear it without me being able to stop them."

      I still think it is much-much-much better to do end-to-end-encryption then just cover one link hop. After all, do you want to solve the problem once and be done with it forever, or do you want to solve it for 802.11, 802.3, HDLC, async-PPP, and on and on for several new network technologies each year? Plus wouldn't it be better to be able to communicate securly from home to work, or your home to your friends home, and not just the last 100 feet of each connection?

      Additionally, the wireless traffic is generally going to be "local" traffic.

      And only my local traffic needs to be private? I should be worried someone might snoop the MP3's I'm sending to my bedroom, but not care if they see the smut I'm fetching from Australia? Or maybe the research I'm doing on a new drug the HMO doctor wants to put me on? I want it all private. Every bit. Over as many miles of the path as I can get.

    6. Re:This screams for wire-level crypto by Cramer · · Score: 0

      First, I understand the "paranoid" desire to encrypt everything, everwhere, but I prefer to be realistic. I really don't care if people want to watch everything I do -- it might be a little embarassing, but it's not going to cause nations to fail. That being said...

      Walking into an office and plugging yourself into an ethernet port is "latching oneself into the cable plant." There aren't many offices (relatively speaking) where one could just walk in and plug into the ethernet. I always made sure conference rooms, and the like, were connected to (monitored) switched ports that were disabled when not in use. I also never let non-employees plug things into non-switched ports -- unless they are bound by an NDA.

      I understand the arguement for one universal solution, but I don't think it should be unconditionally applied. Should every URL begin https://? I say no. Very little network traffic genuinely deserves to be scrambled. On one hand, this is pure paranoia. On the other, it's a pointless protest against "The Man" (be that government(s), large corporations, your boss, or that guy down the street who looked at you funny last year.)

    7. Re:This screams for wire-level crypto by stripes · · Score: 1
      First, I understand the "paranoid" desire to encrypt everything, everwhere, but I prefer to be realistic. I really don't care if people want to watch everything I do -- it might be a little embarassing, but it's not going to cause nations to fail. That being said...

      So why should you subject yourself to the embarasment? Will nations fall if you don't?

      Walking into an office and plugging yourself into an ethernet port is "latching oneself into the cable plant."

      Ok, but to me that "the cable plant" brings up an image of the wireing rooms, or at least a phone closet. Not the 1000 ethernet jacks scattered two to a cubicle four to an office.

      There aren't many offices (relatively speaking) where one could just walk in and plug into the ethernet.

      Go to a uniform store and buy a FedEx/UPS/Airborne uniform. You'll be able to get into almost any office. Change into the appropriate attire for the bisness in the bathroom, look like you know what you are doing, go into an empty office (you did find empty ones by looking in the windows didn't you?), or if you are brave cube. If anyone questions you tell them your from Author Anderson, or KPMG.

      I havn't done it. But I have friends that do security audits for two diffrent consulting groups, they claim that works at almost every place they have been hired by. They might be yanking my leg, but it sounds plausable to me.

      I know where I work I got a temp badge just by knowing the name of an employee (myself), and walking to the security desk and saying I had left mine at home (I had). I bet that'll work a lot of other places as well.

      I always made sure conference rooms, and the like, were connected to (monitored) switched ports that were disabled when not in use. I also never let non-employees plug things into non-switched ports -- unless they are bound by an NDA.

      Good. With the cost of switches coming down, I would hope most places are doing that. Are the systems inside or outside your firewall? If they guy has an acompless in the garage loged into his laptop can they hack their way through your systems, or is the confrence room totally seprate?

      I understand the arguement for one universal solution, but I don't think it should be unconditionally applied.

      Why not? If it is then it is much harder for someone to find the conversation you do want private and work on that one. As a matter of habbit I encrypt every login session (either SSH, normally with 3DES, or Kerb5, with whatever it's default is, I expect 56bit single DES, which ain't all that safe, but at least it makes me "not low hanging fruit"). Not just because every login session starts with a password that I want to keep safe (well the Kerb ones don't), but because the middle of the session might have an su, with another password I want safe.

      Should every URL begin https://?

      Of corse not, that is a lot of extra typing, many billboards and print ads to change. We should just use IPsec :-)

      In reality, I would rather have all https then the not-enough-https you see today. Or IPsec, merely because I think longer term it will be easyer to accelarate, and more secure. And more to the point it allows the sender and reciever to decide if they want encryption, auth, or just whatever the other guy wants.

      Very little network traffic genuinely deserves to be scrambled.

      Who should decide? You? The sender? The reciever?

      On one hand, this is pure paranoia. On the other, it's a pointless protest against "The Man" (be that government(s), large corporations, your boss, or that guy down the street who looked at you funny last year.)

      Or maybe I just want to solve a problem before it makes front page news for once?

      As far as I know nobody has taped any traffic I want private for eight or nine years (I know for a fact it was done to me nine years ago, but it wasn't that big of a deal, they were just trolling for passwords). As far as I know nobody has ever mounted and actiave attack and hijacked a TCP session from me. But I know both things are not hard to do. I would like them made hard to do before the genneral public realises how easy it is.

      You can call it paranoia if you like, but for me, I know how easy it is, and I want it harder.

  50. Gateways and costs and such by ingenthr · · Score: 2

    A couple things:

    I just installed these things for the first time on friday, and was thoroughly impressed. They're working well in our industrial complex, despite poor placement on our part (haven't run any benchmarks yet, it could be dropping to a lower speed).

    A couple observations: The gateway is really just a little bridge. Don't plan on getting 11Mbps out of it though-- it has a 10BaseT interface on the other side! Perhaps someone could put together a nice little embedded linux solution. :)

    Also, you're back to shared media days. It's like putting everyone on a 10Mb hub. I don't know if there's any way to get it to scale (probably not if they all use one frequency) by breaking it down into more networks.

    - Matt Ingenthron

  51. Why not promiscuous mode? by hansendc · · Score: 1

    Is the lack of promiscuous mode because of the driver, or the hardware? Does Lucent not want people putting a $200 card in their Linux box to replace a $1000 base station?

  52. cant resist by Nastard · · Score: 1

    hey, this'll make it cheaper to make a beowolf cluster out of whatever the last article was about :D

  53. Open source driver here: by Booker · · Score: 4
    this page has the open source driver, and it's still being actively developed.

    ---

  54. Pokey-Net Once Again? by Anonymous Coward · · Score: 0

    11 MB is pokey. In a world of 100baseT and right at the edge of Gigabit ethernet, these things are the modern equivalent of the pathetic Appletalk (aka pokeytalk) that those wobbly old Macs used when we were all on 10baseT.

    The fact that they're wireless makes a little bit of difference, but not much. Wireless with a six mile range would mean something. Wireless with a range of a thousand feet means the wife won't complain as much about the vaccum cleaner running over the cables. Translation- no big deal.

    How cheap are they going to sell them? I haul home obsolete 10baseT boards from work for free if I want them.

  55. Not particluarly offtopic, so here's some advice. by Anonymous Coward · · Score: 0
    I have the Webgear cards in an old house, and they work fine.

    Since one of the machines is literally at ground level, I don't get impressive outdoor range (particularly to the west, through most of the house), but I can go anywhere indoors and get to the net, and I managed to get fairly far down the block in the other direction before my on-its-last-legs laptop battery conked out.

  56. Cheap? by Booker · · Score: 2
    The list price of the ORINOCO PC Card is $179; the PCI and ISA adapter are $69 each, and the RG-1000 Residential Gateway is $349.

    So let's see... from my gateway to my laptop, I need:

    $179 card for the laptop
    $179 card for the PC
    $69 cheesy pcmcia adapter for PC
    ----
    $427 for the minimum setup..

    Ack. Don't you hate it when post-IPO dot-com-ers decide for you what's "cheap?" :-)

    ---

    1. Re:Cheap? by drix · · Score: 2

      Well, not sure if this helps too much, but go to any computer swap meet and you could probably score a PCMCIA adapter for about 5 bucks...

      --

      --

      I think there is a world market for maybe five personal web logs.
  57. Re:Price ... well sort of. by Nastard · · Score: 1

    There are some things in life that are just better served by dedicated special purpose devices rather than a multipurpose PC running Unix.

    get a rope

  58. Re:Price ... well sort of. by wik · · Score: 2
    I own a WaveLAN Silver and my roommates have a few Bronze Turbos. To let them get on the internet wirelessly, I purchased a cheap PC-700 PCMCIA card reader for my desktop linux box. The reader worked like a charm with the latest PCMCIA package drivers (3.10.something) and the source drivers wvlan_cs2 from ftp.WaveLAN.com. The PCMCIA reader cost $50 from buy.com and something minimal for shipping. So you can get the wavelan card for cheap ($120?) and have a desktop system on the wireless lan for $170 + a little shipping.

    The cool thing about this reader is that I can have two PCMCIA slots on the FRONT (it goes in a 3.5 or 5.25" drive bay -- adapter included) of my PC, so I can also read things like digital camera flash cards. This is an ISA card, btw but then again it's only PCMCIA so you can't expect really high bandwidth.

    Overall, the installation of the hardware took 15 minutes and configuring/compiling the software/drivers took around 3 hours after poking around to get ad-hoc networking up. After that it's been extremely reliable and very tolarant of me pulling out the card and reinserting it on the fly.

    I found this web page really helpful for the configuration: here .

    --
    / \
    \ / ASCII ribbon campaign for peace
    x
    / \
  59. Costs to rival Webgear??? by Anonymous Coward · · Score: 0

    For $169 I got two WebGear Aviator 2.4's, and two ISA controller cards, and free overnight shipping...can someone explain how $179 for one card compares?

  60. Nokia Wireless LAN Products? by dave_aiello · · Score: 2
    Nokia has Wireless LAN Products as well. I expect that they will be easier to get in Europe than the Lucent stuff.

    The other day, I was going to post an "Ask Slashdot" to see if anyone had tried to use Nokia Wireless LAN products, if anyone knew if they were planning to explicitly support Linux, and how best to pressure them to do so. Sounds like it will be easier given the fact that we can point to Lucent support for Linux.

    If anyone has any answers to the questions I asked above, let me know.
    --

    Dave Aiello

    --
    -- Dave Aiello
    1. Re:Nokia Wireless LAN Products? by leonbrooks · · Score: 1

      Nice, but even the 2Mb products (and yes, there is no 2MB wireless LAN product, someone (marketroid?) just made an error there somewhere, only 2Mb) are $US209 per end and not including PCMCIA-(ISA|PCI) adapter... like, in practice, probably $US90-120 per end more than Lucent, who are ouchy enough at about $Oz500 an end already.

      --
      Got time? Spend some of it coding or testing
  61. Orinoco Dataflow by Anonymous Coward · · Score: 0

    So is Enya the spokesperson for that new product? "We can surf, we can surf
    Surf away! Surf away! Surf away!"

  62. Radio tower mile away = Wavelan in your lap? by Anonymous Coward · · Score: 0



    Look,

    My wife literaly uses her laptop on of all things her lap. I don't care how low the power is, proximity has to count for something. If you had a pregnant wife would YOU feel confortable putting a wavelan card in her laptop?

    Course I don't care what you feel, but point me to some studies showing long term exposure to low power close proximity 2.4Ghz is harmless to pregnant woman, and I will read them.

    Otherwise, I'll probably go with either ripping up my house to install 100-Base-T, OR try one of the less than stellar phone or powerline solutions...

    Keep on Keeping On

    1. Re:Radio tower mile away = Wavelan in your lap? by Anonymous Coward · · Score: 0

      The EMF from the processor is even higher frequency, man. Are you going to let your wifey use a cell phone? Cordless phone? Microwave oven? Go out in the sun?

      How about setting the laptop on a table? It's not like she's going to be using the wirelss network on the bus. Or would you let her ride the bus?

  63. FreeNet by Anonymous Coward · · Score: 1

    The pieces are all coming together to establish an anarchic wireless internet-alike.

    i)Get yourself and all your friends these cards.

    ii)Fit a higher-powered directional antenna as described in other posts on this thread, so
    that you can make at least a surburb-wide network. Hopefully, with time, this 'burb sized networks will grow together.

    iii)Set up an encrypted (IPSec) IPv6 network running over this framework (IPv6 so we have enough numbers to go round without crazy masquerading setups)

    iv) Help develop+ install the freenet server/client on all machines, as well as standard DNS stuff. (Think of freenet as a sortof fully decentralised napster, but even cooler)

    v) laugh at the censors.

    I believe l0pht have been working on such a scheme for some time, but only now are the pieces really coming together.

    1. Re:FreeNet by Anonymous Coward · · Score: 0

      Cool! Build up your big nest of anarchists and whatever... all our government will then need is some directional antennas to identify you.

      The FCC will be around to issue citations at their convenience.

    2. Re:FreeNet by Anonymous Coward · · Score: 0
      l0pht is not the only group involved in this project. I am tired of everyone assuming this is so, just because so many people get to the l0pht site looking for security info.

      BOWSIG

      Sinister

      Wireless stuff is a lot more finicky than software. You can't just put the thing in gdb and debug it. You need a lot more discipline, and more tools, to get this stuff done right. So don't jump into wireless WAN hacking unless you have the patience, time, and either money to buy equipment, or access to it some other way (school, work, sneaking into gov't lab at night....)

  64. Paranoia^H^H^H^H^H^H^H^H security question.... by Cheerio+Boy · · Score: 1

    Touching on the matter of security: Would setting these networks up mean that we'd have to worry about somebody standing outside the house and hacking the network inside?
    I know someone else asked about packet level encryption but how much would we lose in throughput with that versus having the network secure?

    Also, (to emit a few random paranoia particles), couldn't the government just do drive-by monitoring of personal networks? (Slowly of course so as not "break" the connection.)
    Or even worse set up a large receiver station! (Yes I know it would also pick up everyone's microwaves but the government's been known to build larger annoyances - see Echelon.) I personally wouldn't want that!

    Would there be any way for us to protect our data?


    The Tick - "Spoon!"

    --

    "Bah!" - Dogbert
    1. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by danderson · · Score: 1

      You raise some good points. The Access Point/Base Station can be configured with a network name. You tell your Access Point what it's network name is and it will only communicate with stations that have the same network name. So although it would technically be possible for someone to hack your home network while standing in your back yard, they would have to know the network name. If you configured it correctly and were using the WEP encryption it would be considerably challanging.

      --
      This is supposed to be great art. So why does it look like a bunch of decapitated naked people? -- Calvin
    2. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by Cheerio+Boy · · Score: 1

      I can understand that it would be hard to do without knowing the network name but as a counter point/question people crack networks without knowing their names don't they? On top of that quite a few of those compromised systems from the latest DDOS attacks prove the time/effort is there to be put into cracking a network for use later.

      Remember that a good portion of cracking a network/system can be simple social engineering. It would not be beyond believability for a cracker to stand in the backyard dressed as a "meter reader" with his brand new laptop "testing" the meter. ;-)

      On the second part I know nothing of this WEP encryption of which you speak so if you could point me in the right direction I would greatly appreciate it.


      The Tick - "Spoon!"

      --

      "Bah!" - Dogbert
    3. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by danderson · · Score: 1

      To go into a bit more detail... When a PC with a wireless card gets powered on, the card starts probing the channels it's allowed to communicate on. For each channel it sends a request for an Access Point operating on the channel with a specific network name. The Access Point will only respond if it's network name is the same. If you don't know the network name of the Access Point, any attempts "connect" to it will be futile. As far as WEP is concerned... WEP stands for Wired Equivalent Privacy. The idea it to try to make the wireless LAN just as secure as a wired LAN. WEP is a standard aspect of the 802.11 spec. If you want to find out more about it, visit the web site of your favorite wireless ethernet provider and search the technical documents for it. Yes there is plenty of time that people are willing to put into cracking networks, but don't you think you'd get suspicious if a "meter reader" spent numerous hours every day "testing" his new laptop in front of your meter?

      --
      This is supposed to be great art. So why does it look like a bunch of decapitated naked people? -- Calvin
    4. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by Cheerio+Boy · · Score: 1

      For each channel it sends a request for an Access Point operating on the channel with a specific network name. The Access Point will only respond if it's network name is the same. If you don't know the network name of the Access Point, any attempts "connect" to it will be futile.

      Thanks it's much clearer now however I still think someone will probably find a hole in it eventually.

      As far as WEP is concerned... WEP stands for Wired Equivalent Privacy. The idea it to try to make the wireless LAN just as secure as a wired LAN. WEP is a standard aspect of the 802.11 spec. If you want to find out more about it, visit the web site of your favorite wireless ethernet provider and search the technical documents for it.

      I'll definitely check into this to find out more.

      Yes there is plenty of time that people are willing to put into cracking networks, but don't you think you'd get suspicious if a "meter reader" spent numerous hours every day "testing" his new laptop in front of your meter?

      I would but I still think Joe Public could be fooled this way. But then Joe Public probably wouldn't be setting up a wireless network at home either. Point taken. Maybe I'm just being a little paranoid about the subject. (Not hard for me - I run an NT network at the office. Talk about holes! ;-)


      The Tick - "Spoon!"

      --

      "Bah!" - Dogbert
    5. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by Dagmar+d'Surreal · · Score: 1

      This business with the ad_hoc network name is about as secure as the average SNMP device, i.e., unless you know the magic name (which is quite sniffable) you can't connect. Once you know the magic name, there's no stopping you.

      Personally, I'm pickier than that. There is always the chance that one of my more unthinking pals might pull up into my driveway and smurf the Whitehouse from my LAN as a joke. (The Secret Service would almost certainly be at my house the next day. Ha. Ha. *ahem*) So if you have a little time and you're using Linux *anyway*, go ahead and get the Free S/WAN patches so that you can encrypt the link, and then only route packets coming over the encrypted link. Since Free S/WAN can do things using RSA keys to restrict who connects to the routable network, you can keep potential ne'er do wells tucked neatly into their own little subnet where they can't access anything else.

      In my opinion, this is still not even close to comparing in cost to the WebGear Aviators. $179 for one pc-card, and $70 for an adapter to install it in a desktop? You have to be kidding me. The WebGear for $139 (just about anyplace) gets you *two* cards, and *two* adapters. Considering that in some places you might make the landlord upset if you start drilling holes and running cables, this makes the WebGear Aviators almost competitive with 10base-T. (Or at least it does if you think costing well over twice as much is supposed to be competitive)

    6. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by Cheerio+Boy · · Score: 1

      So if you have a little time and you're using Linux *anyway*, go ahead and get the Free S/WAN patches so that you can encrypt the link, and then only route packets coming over the encrypted link. Since Free S/WAN can do things using RSA keys to restrict who connects to the routable network, you can keep potential ne'er do wells tucked neatly into their own little subnet where they can't access anything else.

      Ok but how much performance do you lose when encrypting the link? Is it enough to drop you to a 1mb/s from the ideal 11mb/s?

      In my opinion, this is still not even close to comparing in cost to the WebGear Aviators. $179 for one pc-card, and $70 for an adapter to install it in a desktop? You have to be kidding me. The WebGear for $139 (just about anyplace) gets you *two* cards, and *two* adapters. Considering that in some places you might make the landlord upset if you start drilling holes and running cables, this makes the WebGear Aviators almost competitive with 10base-T. (Or at least it does if you think costing well over twice as much is supposed to be competitive)

      Regardless, the price of all this style hardware is still IMHO a little out of the average person's price range. And as far as landlords go - if you can find one that is a little computer savvy he will probably accept wiring the house/apartment for a network as an "enhancement" to his establishment. Unfortunately it would also allow him to charge more for rent. ;-)


      The Tick - "Spoon!"

      --

      "Bah!" - Dogbert
    7. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by danderson · · Score: 1
      Ok but how much performance do you lose when encrypting the link? Is it enough to drop you to a 1mb/s from the ideal 11mb/s?
      As far as I know the encryption/decryption is done in hardware, so supposedly no performance is lost.
      --
      This is supposed to be great art. So why does it look like a bunch of decapitated naked people? -- Calvin
    8. Re:Paranoia^H^H^H^H^H^H^H^H security question.... by Anonymous Coward · · Score: 0

      The Lucent "network name," better known in the IEEE world as a BSSID was never intended to provide security, but network selectivity. It's broadcasted freely with every beacon and probe for everyone to see...

  65. wavelan long distance by prpplague · · Score: 2

    my company is using wavelan extensively with linux, we actually have wavelan connecting two store on seperate islands, in the virgin islands and it seems to work quite well.

  66. Additional Info: by mindstrm · · Score: 1

    The reason the guy mentions having to 'hack' a new antenna is because, by FCC regulations, unlicenced ISM band devices must use a non-standard antenna connector. They do this, on purpose, so that some dumbwit (it's unlicensed.. so there's no guarantee the end user has any clue whatsoever) doesn't hook it up to a linear amplifier, or to his TV, or somethign else, and cause something bad to happen.

    And these cards should be able to do the same. There is no reason they wouldn't.

    1. Re:Additional Info: by XenoWolf · · Score: 1

      Actually, some of the stuff available from Black Box has a standard, albeit uncommon connector. I've seen adapters produced for the express purpose of adapting their small connector to a larger connector to allow connection to standard antennae.

      --
      XenoWolf The Original - Since 1993
  67. Basestation/gateway does more then you think! by stripes · · Score: 4
    The hardware gateways are fairly expensive, but simply setting them up peer to peer and using IP Masqing works pretty well.

    That will work, but "ad hoc" mode (which is the "no base station" mode) misses out on a few things you get when you have the access-point/basestation thing.

    • The access-point can hold packets for systems that have going into low-power mode, and only turn on the reciever once every few seconds. This allows greatly reduced battery use (like less then 5% of normal use!) when you arn't doing much with the network. The low-power mode is not used in "ad hoc" mode because you might never get your messages! The low-power mode can be used anytime you have nothing to transmit, and havn't recieved anything for a second or two, so between clicks on a web page you can be saving power.
    • The access-point can arange to use a RTS/CTS protocall where it tells everyone who gets the "wire" for the next thousand or so bit-times, which greatly reduces the hidden tranmitter* problem, and increses the effectave range (and the bandwidth at longer ranges).
    • Some funky things also can be done with multiple access points, but I'm not quite sure what they are. I think they end up just being able to bridge together multiple wireless nets, which isn't a big deal if you are ok with changing your IP address when you roam from one net to another. This is probbably a non-issue in a normal sized house, but could be a big deal in a reasonable sized office building (we need two access points per floor).

    So if you are using unpluged laptops, a base station will can increse your battery life. If you have problems getting the range you want a base station can help that too.



    * The hidden transmitter is where you have, say, three machines, A, B, and C. A can hear B but not C, C and hear B but not A, and B can hear both. If A and C both talk they don't hear each other, so they won't do the ehternet I-heard-a-collision-while-I-was-talking-so-I'll-ba ck-off thing. B will hear both messages, but they will damage each other, so all B will realy hear is a really long collison. With an access point (either where B is, or close by) it will mediate A and C's demands to talk. The RTS (request to send) is a ver short message so the chances of collisons when sending them is quite low. There is a slight increse in latency this way.

    1. Re:Basestation/gateway does more then you think! by ViGe · · Score: 2

      Some funky things also can be done with multiple access points, but I'm not quite sure what they are. I think they end up just being able to bridge together multiple wireless nets, which isn't a big deal if you are ok with changing your IP address when you roam from one net to another.

      Repeat after me: M o b i l e I P, Mobile IP.
      Just install a good Mobile IP software to your "access points" and forget about the changing IP..

      --

      --
      It has to work - rfc1925
    2. Re:Basestation/gateway does more then you think! by Anonymous Coward · · Score: 0

      Try again... the access point is a layer 2 (MAC layer) bridge. Unless you want the access point to roam between IP subnets, you wouldn't load it with a Mobile IP client.

    3. Re:Basestation/gateway does more then you think! by ViGe · · Score: 1

      Try again... the access point is a layer 2 (MAC layer) bridge. Unless you want the access point to roam between IP subnets, you wouldn't load it with a Mobile IP client.

      Exactly at which point did I say anything about loading the access point with a Mobile IP client?
      --

      --
      It has to work - rfc1925
  68. Scaling by Tom7 · · Score: 2


    CMU has a very large deployment of Lucent Wavelan (using it right now!). Since these things can hop between different frequencies ("channels"), it's possible to put a few stations in a lecture hall so that everyone doesn't have to share one frequency. Through careful planning it's possible to spread the signal out arbitrarily far (most of our campus is covered, even outside).

    Check out http://www.cmu.edu/computing/wireless/ -- they talk a bit about what they do to scale.

  69. Cheap Lucent base station? AirPort! by KFury · · Score: 1

    If you're agonizing over the price of a base station, Apple's AirPort is based on the Lucent WaveLan Silver card, is platform agnostic, and only costs $299. Let Apple's Loss Leader be your gain!

    1. Re:Cheap Lucent base station? AirPort! by HeghmoH · · Score: 1

      The base station is indeed platform agnostic, once it's up and running! It requires a Mac with MacOS 8.6 or higher (doesn't need a wireless card, though) to actually configure the beast, though! This only has to be done once, but it's still something to keep in mind.

      --
      Mod down posts with a "Free Mac Mini/iPod" sig, they're spam!
    2. Re:Cheap Lucent base station? AirPort! by KFury · · Score: 1

      True.

  70. Not news and not competative with Webgear! by PedXing · · Score: 1

    As another reader pointed out, this is just a re-launch of the same old product at a slightly better price point.

    Still, $179 per PCMCIA card plus $69 per ISA Host Adapter means $496 (not even including software) for essentially a similar product to the Webgear Aviator 2.4 package, which I picked up at my local CompUSA for $139! Sure, the Wavelans are probably better constructed and may get better throughput, but 2Mbit is plenty for home use (believe me) and the price difference is STILL staggering!

    I'm just astounded by the value of the Webgear Aviator 2.4 package. You get two 802.11- compatable cards with Linux support, two ISA PCMCIA adapters, and some Windows software for less than a single competing PCMCIA WLAN card costs! PLUS it's available at every CompUSA so you don't have to bother mail-ordering...

    By the way, if you go looking for these Aviator 2.4 packs on the CompUSA shelves, forget it. You have to ask at the parts desk for some crazy reason. And make sure you get the Aviator 2.4 and not the nasty old parallel-port 900MHz Aviator.

    Check out my Epinions review at:
    http://www.epinions.com/cmd-review-3A1E-314C776- 38B32E12-prod1

    Wireless LAN just RULES!

    PedXing

    1. Re:Not news and not competative with Webgear! by m_vand · · Score: 1
      By the way, if you go looking for these Aviator 2.4 packs on the CompUSA shelves, forget it. You have to ask at the parts desk for some crazy reason. And make sure you get the Aviator 2.4 and not the nasty old parallel-port 900MHz Aviator.
      So that's what happened! I got a pair a month ago, love them and went back last week to get another pair. The clerk found three in stock on the inventory system, but we couldn't find them anywhere on the shelf.
      While I'd love to get 11 MB/s, these are a great bang for the buck.
  71. Apple Airport by fridgepimp · · Score: 1

    1. I didn't have enough time to read all posts, so if this is a repeat, just moderate down.

    2. I can't be 100% certain of what I say, as I haven't personally tested it.

    That said:

    The Apple airport system (including the base stations...which are only $399) should work quite well with these cards as the Airport conforms to the same standard (802.11 DSSS) I believe, and the apple prods are actually lucent stuff repackaged.

    The base station is, to me the best part. While your range may not be 1500 feet (which is way overkill for most home situations...who needs a quarter mile?) it's a bit cheaper.

    anyway...I'm looking forward to get my hands on one of these to test out the compatability.

    -FP

    1. Re:Apple Airport by just+someone · · Score: 1
      Reads like an Airport. Modem, single enet, nat, dhcp. I bet Apple bought a 6 month exclusive on the OEM rights.


      I wonder if Apple will be dropping it's prices a notch?


      I'd be interesting to see if if this is right
      I've heard rumours that you can configure the AirPort base station through SNMP... anyone have info

      Now remember, no firing up the microwave while your kid is trying to download porn off the net.

  72. Re:Not particluarly offtopic, so here's some advic by FallLine · · Score: 2

    Which model of card do you use? (e.g. Aviator2.4, etc.)? If I locate the "hub" in my room, I'd need to cover atleast 50 feet horizontally through a couple walls/rooms, and up one floor too. Ideally, I'd like to locate it in my basement and network my entire house like that (2-3 floors). What kind of speed do you think I could expect in this situation? And are you using Linux as the hub (I need to run NAT/ipmasqing)? Had something else I wanted to ask, but I forget now....

    thanks

  73. So true. by TRoLL. · · Score: 0

    People who use high power with this are EVIL. They should just accept the fact that the phone company is going to rape them in the ass and smile! I mean, if you could run say 5 watts then why buy a T1?? Shit, a lot of the T1s around here would be just a big waste of cash to keep around. I mean you should just be incredibly happy get the joy of paying $16 or more a month for outdated analog trash. The phone company loves the consumer!

  74. AirPort by mnot · · Score: 1

    I'd rather use an AirPort - I have one at work, one at home, they work like a dream, and my laptop (linux of couse) picks up the network with absolutely no worries. This article doesn't say anything about encryption, and the prices look about the same. Not such a good deal... especially if you can't configure *their* base station with a Linux box. I've heard rumours that you can configure the AirPort base station through SNMP... anyone have info?

  75. eh? by TRoLL. · · Score: 0

    I have ISM stuff that has 'N' connectors on it. Pretty fucking common if you ask me.

  76. Not That Kind of Radiation by Anonymous Coward · · Score: 0

    Make the walls out of lead if you're looking to avoid the side-effects.

    A simple Faraday cage will do. If you haven't got tons of steel concrete forming a cage around you, you can always sleep in the car.

    In my army times I once walked in front of a Russian-built AA-missile control center's radar thing. The microwave transmitter was huge. I can swear I felt a hummmmmm going in my head.

  77. Good Point! by Anonymous Coward · · Score: 0


    While cpu Power Suplies etc are not designed to transmit they do emit something.

    How does the power of one of these 2.4Ghz low power transmitters compare to the EMF already emitted from common electronic appliances such as a laptop.

    It's my understanding that computers are shielded, however shielding is aimed not at health but preventing interference w. TV or radio, so one wonders how effective the shielding is for anything outside those frequencies.

    Anyone care to comment?

    For my part, I'll most likely go through the trouble of wiring my house, better safe than sorry!

    1. Re:Good Point! by dattaway · · Score: 2

      How does the power of one of these 2.4Ghz low power transmitters compare to the EMF already emitted from common electronic appliances such as a laptop.

      This is by no means a scientific measurement of RF power, but last night when my little Nokia digital cell phone rang under my 17 inch monitor, the screen shifted to the left just before the call. It takes power to mess up a monitor. The 5 watt UHF Motorola radios at work will move the picture on the computer monitors half way to the left. Back in my teenage years, I remember a 150 PEP mobile 11 meter linear amplifier that would invade all televisions and telephones on a block. (I would strongly discurage the use of said amplifier for reasons other than safety.)

      Taking my directional antenna and feeding the full power of a flood ping to the heart of my monitor does . . . nothing. So, my guess is that these wireless devices are not as potent as the mighty 600 milliwatt cell phone.

  78. Re:Price ... well sort of. by Darth+Yoshi · · Score: 1

    > Why bother though. ...

    Well, maybe if you already had a Linux box as a gateway to your DSL/cable/dial-up connection...

    --
    // TODO: fix sig
  79. Not that big of a price difference by gelfling · · Score: 1

    Wavelan is about $1,100 for 3 PCs vs $20-90 per Ethernet adapter plus $90 for a hub plus $0.50/ft for cable x 200 ft or so plus $25 per RJ-45 termination plus 40-100 hours of your own labor. So even if your labor is free the price difference is about 500 bucks. The difference decreases as you add more PCs.

  80. More info please! by FallLine · · Score: 2

    Hi, I'm planning on wireless networking my house. I'd like to use my Linux box for NAT/ipmasing, and connect wintel PCs and laptops. If I could use this, that would kick ass.

  81. Oh yeah.. by FallLine · · Score: 3

    in case you're not sure what I need to know. I'm not that familiar with these wireless networking technologies yet. Do I need one of those hubs/access points, or can I just plug the "client" PC card into my Linux box, and use that as my NAT. Also, where did you order it from... Any advice, problems, latency issues, speed, etc....

    Thanks

    1. Re:Oh yeah.. by Garfunkel · · Score: 1

      You can use "Ad-Hoc" mode and use just the cards without the Wavepoint, but there are issues with this (I think someone else posted that info farther down.) We're using one AccessPoint and currently 7 PCMCIA client nodes. We are have no problems whatsover with it in regards to speed or latency. Also a major issue is that the PCMCIA cards cannot do bridging (they can only have one source IP address) so you'll need to do MASQing if you plan not to use an AccessPoint. Check out their homepage because they have all the specs on their site.

      --
      -jay
  82. Cheap hardware base station... by Danger+Boy · · Score: 1

    I'm sure it has been mentioned, but in case not... The Apple Airport base station is available for ~250 dollars via mail order and is completely compatible with Lucent Wavelan products. The only issue is administration must be done from a Mac. Unless you'd want to write software of course :-)

    A good deal for a cheap hardware access point supporting NAT, DHCP, Bridging, ISP dialup sharing etc...

    --
    The truth will set you free.
  83. Microwave oven DOS attacks by dattaway · · Score: 2

    You bring up an interesting point. Consider that microwaves operate at 2.4GHz. Wireless lans operate at 2.4GHz. Now, microwave ovens are in use around here, but haven't caused me a problem in the past;

    however, if some nut decides to take his loud 2.4GHz oven apart and aim the waveguide in my general direction, my crystal controlled 2.4GHz connection can be expected to fail.

    1. Re:Microwave oven DOS attacks by comart · · Score: 1

      hhen talking to a wireless lan vendor, he told me that the access point should not be near a kitchen with a microwave oven.

  84. MIB for Apple Airport BaseStation by RAM5 · · Score: 1

    The Apple Airport BaseStation works fine with the Lucent Cards. Rumor has it that the BaseStation is SNMP aware. Has anyone found a MIB for the BaseStation?

    --
    RAM5
    1. Re:MIB for Apple Airport BaseStation by .@. · · Score: 1

      S'not a rumor. Have a look at my site, which contains APStatus, a Perl script I wrote that will report interface stats on a remote AirPort Base Station via SNMP.

      I'm currently working on back-engineering the method used to provision the things so they can be installed without using a Mac.

      --
      .@.
  85. Use with AirPort? by yet+another+coward · · Score: 1

    Has anyone tried these cards with Apple's AirPort? Both are supposed to use IEEE 802.11.

  86. It could. by uradu · · Score: 1

    I have (quite) a few of the IBM Wireless Entry cards, and I'm hooking them into my Ethernet network via a Windows machine. He, he, it's a 386SX with 8M and a 120M HD running Win95, without a case--strapped the whole mobo, PS and PCMCIA card reader to a wooden board on a shelf.

    I'm running Win95 because there never were any working Linux drivers for the IBM cards. With DUN 1.2 and later Win95 can do IP forwarding between Ethernet cards (only! won't work with TokenRing etc, I've tried it). Takes the machine a good 40 seconds to boot, but since the bridging is all it's doing, the 386 is plenty, and it's rock solid. Cost? $10 for the PS, $70 for the card reader (2 years ago). What self-respecting geek doesn't have a closet-full of 386 and 486 boards, so there's no cost there.

    It's lucky that Win95 can forward IP, otherwise there would be no joy with a lot of the wireless cards out there. Few have Linux drivers, and fewer still publish the specs.

    Uwe Wolfgang Radu

  87. Cheap? source? by CrAlt · · Score: 1
    Yeah right. They don' have all the source out.



    If you want a good cheap 2Mbit card score some WebGear cards. They have the FULL source out on their page and links to the most up to date source. I also hear that their drivers will be in the 2.4kernels. And for ~$140 (CompUSA) you get 2 PCMCIA WLAN cards AND 2 PCMCIA to ISA cards...NEW. Ive been using them with linux for a wile with no probs.

    --
    I have to return some videotapes...
  88. A bit about microwave ovens.. by Cramer · · Score: 2

    True, microwave ovens don't mutate your food (much). The microwave frequency is centered on the hydrogen vibration frequency of a water molecule -- the two hydrogen atoms in H2O aren't in a rigid alignment. The microwave energy intensifies the vibration thus heating the substance -- temperature equals average kenetic energy. This has the net effect of driving the water out of most things -- take for example, bread... need I say more?

    However, water is not the only "perfect receiver". Sugar also absorbes the microwave energy very well. So well in fact, that the "water" in the sugar can be wrenched out of the sugar molecules leaving behind the carbon. (It's a fun experiment, but I'm not responsible for any damage to your microwave, person, house, pets, etc.)

    This brings me to the non-ionizing radiation part... This is true. The microwave signal isn't going to hit a strand of DNA and break it like a gamma ray. However, many of the molecular substances in the human body will absorb microwave energy and eventually be damaged. In your example of standing infront of a microwave with the door open, if you stood there long enough, it would blind you. (Of course, if you stood there "too long", your blood would boil and you would subsequently explode -- odds are, you'd already be well on your way to dead by then anyway.)

    And the proof is in society. So far,there really aren't any problems.
    Aside from insane and/or stupid people placing living things (babies, dogs, etc.) in their microwave.

    PS: This is also why the 2.4GHz band is unlicensed. Too many things in the environment absorb or otherwise interfere with the signal(s).

  89. How would I do that? by tecnodude · · Score: 2

    Sorry for asking but how exactly would I hook up something that amplified the signal of these devices to make it work over a mile or so?

    See the situation is like this, I can get ADSL (I'm right at the service edge) But my cousin who lives about a mile or so down the street can't get it. If we could hook him up under my ADSL it would be a great solution especially if I could do it under linux. He's been begging me to find some solution to his problem. So I'm intrested in the cost of the equipment and how the setup would actually work. (The hardware end, I have a few spare IPs).

  90. A Cheaper wavelan alternative by meshuga · · Score: 2

    nothing against wavelan, but the Webgear Aviator also has fully gpl'd
    drivers, and you can pick these up at almost any computer store(compusa,
    frys, buy.com) for under $200. I got these going in my house, one in my
    router box and one in my laptop, and i routine pull 120k-200k a sec from
    across my house. Also, the webgear *include* the isa-to-pcmcia bridge
    cards, unlike the wavelans. overall, these have been extremely stable
    cards, with solid working drivers under linux and windows, and full
    compatbility between the two, which is nice.

  91. You must have crosslink fever. by Anonymous Coward · · Score: 0

    It is far better, and simpler, to just plug the cable modem into the UPLINK port on the router, using a standard ethernet cable. Why Bother,Chairman Crosslink Cable Elimination Task Force.

  92. Wireless Bridging of Wired Networks by InfoCynic · · Score: 1
    I've been looking at way to link several smaller buildings with internal networks to a large network with the main servers and the T1 connections. Digging up streets, while fun and amusing, is extremely costly, so we thought we'd check out wireless. It's my understanding that you can a wired-to-wireless bridge, run a patch cable to it (connects to uplink port on a hub), stick it out on the roof (assuming it's an outdoor model), add an antenna if needed and then do the same thing on the other side and you're good to go. These would primarily be M$ Win9x machines, but we would prefer an interplatform solution. Does anyone know for sure that that works, and if so, what products have you used?

    "Futuaris nisi irrisus ridebis"

    --

    "Recta non toleranda futuaris nisi irrisus ridebis"

    1. Re:Wireless Bridging of Wired Networks by danderson · · Score: 1
      --
      This is supposed to be great art. So why does it look like a bunch of decapitated naked people? -- Calvin
  93. Re:Not particluarly offtopic, so here's some advic by Anonymous Coward · · Score: 0
    I'm using the Aviator 2.4 cards. Fifty feet through a few walls should be no problem - in my case, to get to my bedroom, the signal goes through about four walls and one floor.

    Speed is quite variable, ranging from about 40-120 KByte/sec when using scp; the laptop itself is a fairly slow machine.

    I'm using a P166 Linux system with Mandrake 6.1 as the IPmasq box, with one el cheapo Tulip-based card for the cable modem, one el cheapo PCI NE2000 clone for the internal wired network, and the wireless card installed in it. Fortunately it doesn't have a sound card, as IRQs don't grow on trees. I hacked the pmfirewall package so that it would set up the proper ipchains rules when running with three NICs.

    One downside is that it's necessary to recompile your PCMCIA services with the Raylink driver (the Aviator cards are relabeled Raylinks) - be sure you do not use -fexpensive-optimizations when recompiling, or the PCMCIA services will behave very strangely.

    I've thought about switching to a 2.3 kernel (the driver's already integrated), but I'm loath to muck with it now that it works.

  94. Security of these cards? by mjh · · Score: 2

    Does anyone know any pointers to the security surrounding the use of these cards? Specifically, if I use one of these setups can someone who happens to be w/in 1500 feet of me now snoop my communications? I know I could set up freeswan but I would like to know if I have to.

    Curious?
    - Mark

    --
    Key to financial independence: Spend less than you earn. Save and invest the difference. Do it for a long time.
  95. I'm happy with my webgear aviator2.4 by Splork · · Score: 2

    Well, almost. I wish there were OpenBSD drivers for them.

    Bandwidth in megabits/sec isn't the big deal for wireless; its connectivity, range and compatibility that counts.

    I do wish devices with crypto didn't cost more (even silly 40 or 64 bit crypto prevents casual eavesdropping). It's not like putting it in the product costs the vendors anymore (I wouldn't be surprised if non crypto enabled cards have the crypto silicon on them; just disabled)

  96. intercity network with wireless cards by Claude+Debussy · · Score: 1

    I'm curious if anybody has good webpages or LUG urls that have setup projects for long distance wireless networks...

    A friend of mine, that lives just about 3.2 kilometers from my house, wants to setup a wireless network.. but is something like this feasible ? There are several buildings blocking the line-of-sight..

    Also, with the use of a directional attanae and reflecter, for greater gain, can the output power on these wireless cards be increased, say to 10 watts, 20 watts, or would I need special hardware for that ?

  97. Links... by TRoLL. · · Score: 0

    1 2 3 4 5 6 7

    There's a few to start you off.

  98. Don't do that by TRoLL. · · Score: 0

    It's my understanding that you can a wired-to-wireless bridge, run a patch cable to it (connects to uplink port on a hub)

    Unless it's a switched port that is. You don't want to be clogging the wireless link with garbage that doesn't actually need to go to the other building. Remember, you're on a shared medium to an extent so try to keep extraneous network traffic at a minimum. I'd suggest you use a router or even a PC/workstation as a router.

  99. low cost wireless how-to by Anonymous Coward · · Score: 0

    Here is a Low Cost Wireless How-To. It shows some modifications for increased range on the low power 2.4 GHz devices.

  100. Usable distance for underwater wireless? by Anonymous Coward · · Score: 0

    Does anyone know what the usable distance for these wireless cards would be operating under water? Are there any means of adding antenna to them? Thanks. Gury

    1. Re:Usable distance for underwater wireless? by John+Miles · · Score: 1

      Not very far, maybe a couple meters at most. Water is an excellent RF shielding material.

      --
      Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
    2. Re:Usable distance for underwater wireless? by Cheerio+Boy · · Score: 1

      He'd probably be better off with some sort of audio/sonic frequency although I'm sure it's going to be hard getting any bandwidth underwater due to the variance and properties of the medium involved.

      What would he use though? I'm sure he could look at some of the de-classified Navy documents for pointers - they've been working on things of this nature for years AFAK.


      The Tick - "Spoon!"

      --

      "Bah!" - Dogbert
  101. Re:Price ... well sort of. by Dahan · · Score: 1
    Sooo... why couldn't a linux box do the same thing?

    It could... but note that the gateway probably does more than just link the wireless network to your ethernet. 802.11 networks can run in two modes: ad hoc and infrastructure. In ad hoc mode, each wireless node talks directly to the other wireless nodes. In infrastructure mode, all stations talk to the gateway, which relays the message to the other wireless nodes (or to the ethernet). The advantage of infrastructure mode is that the gateway acts as a repeater, increasing the range; instead of all nodes having to be within x meters of each other, they have to be within x meters of the gateway. You can have a couple of these gateways, increasing the range even more.

    That said, for most people, setting up an existing box to be a bridge or router between the wireless and wired networks is gonna be cheaper than buying the gateway :) And that's not to say that you couldn't use a Linux box as an infrastructure mode gateway... probably just a matter of writing the software. (I'm not a Linux guy, so I have no idea whether the software already exists or not).

  102. OpenBSD running WaveLAN for months. by xinos · · Score: 1

    Works great! Using IPSec with WaveLAN is ideal too. I don't like strangers listening in on my network traffic.

  103. Re:Price ... well sort of. by slashdot-me · · Score: 1

    BTW, I think most pcmcia (hate that acro) are isa. PCMCIA is little more than isa with a smaller connector.

    Ryan

  104. Does it go through one (thick) wall? by Baki · · Score: 1

    I'm thinking of buying some of these cards, to be able to put my server upstairs. There is one thick concrete wall in between then. Distance about 5 metres.

    Before I buy and find that it doesn't work: does anyone have experience with this? Would it work?

  105. Re:Price ... well sort of. by ANTI · · Score: 1

    Well,

    >Also, in most cases, I think the Linux PC would be more expensive

    You can get a (used) P133 with plenty of Ram and Big Disks for around 30$, that's saving 300$.

    >You've got to set up and administer the box

    The last time I administered my Linux-Route/Firewall/etc ... hmmm ... 2 1/2 years ago ?
    No, that's not true. I changed my ISP 4 Month ago.
    And while I was at it I upgraded the Kernel'n'Stuff.
    Took me 20 Minutes (plus 3 hours unattended.)

    btw:
    The Lucent solution costs me:
    250$ * 2 = 500$
    The Aviator set costs:
    200$ for two cards.

    300$ ... hmmm ... only two days salary, but a whole month lunch too.

    Does anybody know a european distributor for the Aviator ?

    ciao
    Anti
    ps:
    Don't take this personal, I only wanted to say it.

    --
    On the other side of the screen it all looked so easy.
  106. Re:Price ... well sort of. by pe1rxq · · Score: 1

    I think you don't even have to write any software to do this, you could just set the gateway as the default router with a very narrow netmask (255.255.255.255) Grtz, Jeroen

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  107. Re:Price ... well sort of. by wik · · Score: 2
    I haven't looked at any PCMCIA specs carefully, but the ISA card looks pretty much like a bunch of bus driver chips. There's a weird pair of wide ribbon cables that go to the actual PCMCIA ports. It's like two IDE cables piggie-backed.

    There's some actual circuitry in the drive-like thing, but it may just be stuff to control starting and stopping the cards/power support stuff, so it very well could be close to ISA.

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  108. Re:Price ... well sort of. by Dahan · · Score: 1
    I think you don't even have to write any software to do this, you could just set the gateway as the default router with a very narrow netmask (255.255.255.255) Grtz, Jeroen

    That's not going to put the wireless nodes into infrastructure mode.

  109. 2.4GHz in France by leonbrooks · · Score: 1

    > FRANCE, who assigned the 2.4ghz range to the military

    ...another gem from the people who invented the ordinateur. I supposed it means their military people can buy such stuff cheaper than their civvies.

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  110. Three Mile Geek by leonbrooks · · Score: 1

    when my little Nokia digital cell phone rang under my 17 inch monitor, the screen shifted to the left just before the call

    these wireless devices are not as potent as the mighty 600 milliwatt cell phone

    600 mW average, approx 200 WATTS peak, ballpark-equal to 1/3 of a standard (600W) microwave oven. That's how they get to kick monitors around and generally engauss them. By the way, do you hang one of these babies near your gonads when you go out? Or let it ring while it's next to your head? Just a question, think nothing of it...

    Makes the WaveLAN seem even less nocuous than you said, doesn't it? (-:

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  111. Dual-mode coffee heater by leonbrooks · · Score: 1

    The 600W of a standard microwave is emitted inside a Faraday cage (shield), and I'm note sure that the WaveLAN card puts out as much as 100mW continuously.

    Given the amount of power than an Athlon sucks now (two fans and a block of Al that weighs more than some notebooks), by the time we get to 2GHz CPUs you'll be able to heat your coffee bimodally - both by fan-forced convection and microwave - if only we can convince case makers to put the appropriate dent in, and CPU-cooler makers to make hollow fans that suck air through the heatsink instead of blowing.

    Perhaps we could patch RC5 for temperature control? You know, feedback from the CPU temperature sensors, that kind of thing, wouldn't be hard to figure out from the heatsink temperature drop that a cold cup of coffee had been put down on it, and play a kettle-whistle sound bite when the cup was up to the right temperature.

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  112. Encrypted links by leonbrooks · · Score: 1

    Linux has, at last count, six different was of encrypting IP traffic, not counting ssh, PGP and the like. Who cares what the card itself does?

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  113. Encryption and Performance by leonbrooks · · Score: 1

    Ok but how much performance do you lose when encrypting the link? Is it enough to drop you to a 1mb/s from the ideal 11mb/s?

    Not unless you're using something like a 386SX... the cost (with FreeS/WAN) is in processor power within the nodes, not in bandwidth.

    I would hope that the MCUs in the cards could (en|de)crypt fast enough to not slow the link either, using the card-based encryption.

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  114. Re:Price ... well sort of. by pe1rxq · · Score: 1

    No, but it will do almost the same namely use the 'base' as a repeater to connect the other nodes.

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