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6 Burning Questions About Wireless Networks

alphadogg writes "Answers to wireless network questions such as: What impact will 802.11n have? Which wireless security threats are scariest? What of wireless VoIP? Will your organization need to change to support enterprise mobility? How do you control costs in an expanding mobile and wireless environment? What can you do to stop wireless denial-of-service attacks?"

46 of 201 comments (clear)

  1. My question by CastrTroy · · Score: 4, Interesting

    Here's my question. When are router manufacturers going to start requiring people to use WPA security? I got a Wii a couple weeks ago, and used the wireless part of my wireless router for the first time. Setup of WPA was very easy. I also found about 5 other open networks that I could have connected my Wii to. I find it amazing that people are leaving their connections open when setting up a secure connection is so easy.

    --

    Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
    1. Re:My question by dattaway · · Score: 5, Interesting

      Those open connections are just part of the redundancy of the internet. And the next time RIAA come knocking on our door, we just point fingers again.

    2. Re:My question by morgan_greywolf · · Score: 5, Insightful

      Here's my question. When are router manufacturers going to start requiring people to use WPA security? I got a Wii a couple weeks ago, and used the wireless part of my wireless router for the first time. Setup of WPA was very easy. I also found about 5 other open networks that I could have connected my Wii to. I find it amazing that people are leaving their connections open when setting up a secure connection is so easy.


      Is it up to Microsoft to require people to use secure passwords? Is it up to Oracle to require people with sensitive data to use the data encryption features of Oracle? Is it up to the postfix authors to require people to not run open mail relays?

      As always, security is left up to those running the system. Similarly, wireless network security is up to those running the network. You can't force people to be secure. All you can do is strongly encourage it.
    3. Re:My question by PhoenixFlare · · Score: 2, Interesting

      I think many people just don't realize how far the range on some of these devices reaches - or they just automatically assume it will be stopped by the windows/wall/floor/etc.

      I had the same experience when I got my Wii - it picked up probably 6 or 7 networks within my condo building, with probably 3 or 4 of those unsecured. Even my DS still manages to pick up 2 or 3 other networks from elsewhere in the building.

    4. Re:My question by danbert8 · · Score: 5, Insightful

      Yes, but when you start Windows for the first time, it asks you to set a password. When you plug in your router, it does not ask you to set up wireless encryption. You can always leave the password blank for Windows, but you were at least given a prompt to set one.
       
      Moral of the story: Never underestimate an idiot... They will always do nothing more than you make them.

      --
      Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    5. Re:My question by Anonymous Coward · · Score: 5, Interesting

      Require? Why the hell should they 'require' it? I can see turning it on be default, but no way should it be required.

      I choose to share my wireless with anyone who might need to connect to check their mail etc. I VPN from my laptop to my OpenBSD gateway to keep my own work encrypted, and also allow access my wired home server.

      I use the packet filter to ensure I get first dibs on traffic, but any spare bandwidth is open for others to use as the need.

      Having it on by default is good. Having it required is not.

    6. Re:My question by CastrTroy · · Score: 3, Interesting

      I hope you don't regret it when the cops come knocking on your door because somebody has been using your wireless connection to do something illegal like trading child porn. Maybe you wouldn't get convicted because they won't find any other evidence, but I'm sure it would be a major inconvenience. Why risk it? I know you're just trying to be a good Samaritan, but I pay for my internet, and expect that my neighbors would do the same.

      --

      Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
    7. Re:My question by Idbar · · Score: 2, Interesting

      Well then, that is a good indicator that you are in the wrong neighborhood. However, there's always a way to keep track of the computers using your network.

      The only reason I have my network protected, is because I don't want to do all that security thing of encrypting, keeping logs. If I weren't lazy enough, I'd keep logs as future support and keep the network open.

    8. Re:My question by c_woolley · · Score: 5, Interesting

      I agree. I also think we should point out the number of people that simply do not understand what they are doing or what is needed to secure a wireless connection. My mom is fairly tech-savvy for an older (I hope like hell she doesn't read this) woman. She understands quite a bit more than the average user. She was new to wireless connections, and decided to give it a try. When she called me to ask if there was anything to do besides plugging the provider's connection to her router, she was surprised when I told her she needed to secure it. She assumed (as someone else had already mentioned in a later post) that security was enabled by default. I walked her through the process without any problems, but it still remains that she did not know that enabling security was required. I asked her why she didn't figure it was needed and why wouldn't she feel that anyone could connect if the wireless connection. It didn't ask her for a password or some type of authentication, her computer was able to get to the Internet. Wouldn't that mean Joe Anyone could get there through her connection too. Her answer was simple, and yet effective. "Well, when I plugged my computer into my old router, it never asked me for a password either...smartass." And there is the answer. People are used to not having to secure their physical connections. If they do, it is usually much worse a situation for the average user, since their home is probably being burglarized at the same time. Now, it isn't the same situation for everyone. Some people know fully well that they need to secure their connections, and just don't. Call it lazy or whatever, maybe they just don't care enough or don't think their information is worth stealing. I have even run into one man who opened his connection up so that his neighbors could surf on his dime. He paid for a 12Mb connection and only used the Internet to surf the news. He didn't care that his neighbors were playing World of Warcraft or other online games. As long as his connection to the news was good, so was he. I suppose the bottom line is that there are reasons for everyone. Increasing some people's knowledge about it can help, others may just not care. Either way, I'll still be able to sit at home and open up my network connections and see unsecured networks. It's on me to decide whether or not to take advantage...and on my neighbors to figure out why they have to rebuild their systems every two weeks (just kidding).

    9. Re:My question by innerweb · · Score: 2, Insightful

      Right...

      And you shall:

      • Maintain your automobile, engine and all
      • Prescribe your own medications
      • Manage all the trades and investments in your retiremens account(s)
      • Manage your local police force and do all the policing
      • Raise and educate your child(ren) on your own (no teachers)
      • ...
      I would hope that all of these things the vast majority of people would not try. A few would be qualified to do some. For all of these things, we are directed by the *authorities* to have someone else do it, either because it is profitable or because it has become *public* knowledge that this is the way not to do this thing.

      Computers are surrounded by much mysticism. MS and others advertise all kinds of wonderful falsehoods. People believe them without knowing what is really happening. They trust them. As long as the public (in general, not the public here) trusts these companies to provide the solution in a box, and as long as they are reasured by the companies that these bad things do not really happen to their people with their products, a large percent of the userbase will continue to ignore those of us out hear yelling "The king is naked" (from a fairy tale). We are a small number of people and we are fighting marketing departments and laziness. So, I think these companies that claim to provide said protection ought to provide that protection out of the box and to force people to use things like secure paswords.

      Yeah, I have been a sysadmin for college types and business types, and yeah, the business types were far worse, but in the end, my job was to fulfill my claim of having a secure network, and that meant doing unpopular things like forcing secure passwords.

      InnerWeb

      --
      Freud might say that Intelligent Design is religion's ID.
    10. Re:My question by battjt · · Score: 4, Insightful

      And what will you do when the police come knocking on your door because someone filmed child porn in your backyard?

      Why risk it? Put up a 20 foot fence!

      What will you do when you find out that a homicide was committed with your hotwired car? How about the death threats made on your phone line (you should have bought a T1 and used encryption back to the CO)? What about the death threats to the president spray painted on your garage? The weed grown by the alley at the back of your lot? etc...

      Get real! This is life. The benefits of open WiFi far outweigh the risks. Hell, I've used lots of anonymous connections in a pinch (most recently to look up the default IP of my radio, to configure it).

      You drive down the street with a complete strangers approaching with a closing speed of over 110 mph, but you wont leave your internet connection open?!

      Joe

      --
      Joe Batt Solid Design
    11. Re:My question by Anonymous Coward · · Score: 2, Insightful

      Sure, they could do those things. They could do similar things for any number of trumped-up charges in cases where it's easier to point a finger than do actual detective work. The question is, at what point do you stop living your life as you would choose to live it, to keep 'safe'.

      Now, realize I'm a liberal and actually have some balls, unlike those pussy neo-cons who are willing to trade their freedom from security from 'the evil terrorists who are going to kill us all at any moment'. If the police harass honest citizens, we need to stand up to it, rather than just roll over as the neo-cons do to anything that they think might make them less safe. Dealing with it can be real bothersome, but giving up freedom is a LOT more bothersome.

    12. Re:My question by asills · · Score: 2, Interesting

      Most newer routers come with CDs to let the lay people set up their routers. The CD walks them through setting up their wireless router and the recent ones inform people to pick a "security key" and it sets up the wireless security for them (I found this out because I was amazed at finding out my mom had WEP enabled, even though she had no idea what it was - and regardless of how bad WEP is, for any random house in any random neighborhood it's good enough).

      So if you would RTFM and/or UTFCD the router came with, it would tell you to set up security :)

      --
      -- What did Spock find in Kirk's toilet? The captain's log.
    13. Re:My question by Deliveranc3 · · Score: 4, Interesting

      Corrolary question, when will they give me a wireless security setup that matches what I want.

      I want to share about 30-40Kpbs and have intelligent performance algorithms managing the rest, I want to have my transmissions encrypted while allowing others to SHARE my web-access. (I know that's a big word, like "communist").

      When we move to 802.11n (Assuming the same number of wireless routers as currently exist there will be almost 80-90% coverage in urban areas, why would I need a cell phone if we all shared, how about intelligent sharing between networks as a mesh? Once we overflow the casual bandwidth limits we can stop dealing with this "expensive last mile" crap and start getting isolated fibre channels.

      My computer is secure, my internet access is mostly encrypted or tunneled, but I don't have access everywhere for affordable prices, I don't think security and sharing have to be mutually exclusive.

    14. Re:My question by steveo777 · · Score: 3, Interesting

      Well then, that is a good indicator that you are in the wrong neighborhood.

      The neighborhood will never have anything to do with what kind of neighbors you have when they shut the front door. Sure, you can get a good idea by looking at the outside, and everything may look pleasant. "Never judge a book by its cover"

      A friend of mine had a roommate for six months. Everyone agreed he was a pretty good guy. If not a bit obnoxious. A month after the guy moved out the police broke in with a warrant, took every computer and all his media. Movies, cassettes, CDs, DVDs, blanks, everything. They pull my friend into the station and put him behind a mirror and ask him tonnes of invasive questions about sexuality. After a couple weeks they call back. They talked to the old roommate, who confessed to trafficking child pornography. My friend got everything back, which I understand doesn't always happen.

      I'd say it's a good idea to secure your network or at least keep some kind of log.

      --
      This sig isn't original enough, it's time to come up with something witty...
    15. Re:My question by Odiumjunkie · · Score: 2, Informative

      > Yes, but when you start Windows for the first time, it asks you to set a password. When you plug in your router, it does not ask > you to set up wireless encryption. You can always leave the password blank for Windows, but you were at least given a prompt to set > one.

      Yes, but by default the Adminstrator password is left blank, with the username "Administrator".

    16. Re:My question by Sancho · · Score: 2, Insightful

      I receive no benefits from opening up my wifi. I receive benefits if someone else does.

      That said, the problem is the current laws and administration. They don't understand that an IP address received from your ISP does not uniquely identify the end-user. Furthermore, the absurd invasion of my home and holding of my property in computer-based crimes is unreal. They'll take your computers, all your media (even obviously retail DVDs), your gaming systems, your TiVo, your VCR.... And that's without any proof that you did anything. It's evidence that they hold while they build the case, and in some states, you may never get it back, even if no case is brought against you. Even assuming that they'll hold the stuff until the statute of limitations passes, it might as well be forever.

      Computers aren't well understood by the police and courts, and thus they take everything overboard. I don't want to be one of the cases where my connection is abused and my life is turned upside down because of the ignorance of those in charge.

    17. Re:My question by crossmr · · Score: 3, Informative

      Don't buy a residential device? If you want to do advanced set up, pony up the bucks and go purchase a device to do it.
      As mentioned FON is a cheap solution to do that, it puts out 2 SSIDs, a shared one and a private encrypted on, and you can use the web interface I believe to rate limit people on your open shared line.

      Otherwise go buy a high quality business device with more than one available AP and set it up to do whatever you want. Cisco has tons of devices that can deliver you that kind of setup. So the answer is, its already there. Go nuts.

    18. Re:My question by fredklein · · Score: 2, Insightful

      I don't want to be one of the cases where my connection is abused and my life is turned upside down because of the ignorance of those in charge.

      So you have 2 choices-

      1) Never do ANYTHING that those 'idiots in charge' might EVER mistake for illegal.

      2) Get rid of the idiots and get SMART people in charge. (Or at least technology-wise people)

    19. Re:My question by Sancho · · Score: 2, Insightful

      1) Never do ANYTHING that those 'idiots in charge' might EVER mistake for illegal. No, apparently you, like many people, don't understand that there are gray areas. It's not a binary choice. It's risk management, and I have decided that the risks aren't worth it. Besides, it's not mistaking things as being illegal, it's mistaking who is the person performing the illegal act. In the online world, where connections from one IP address can be made from many, many different people, it's pretty hard to tell who is doing something bad. It may be that the police shouldn't try, but they do, and therefore, I choose to reduce risk by limiting who is allowed to use the IP address that my ISP assigns to me.

      2) Get rid of the idiots and get SMART people in charge. (Or at least technology-wise people) I try every time there's an election. Unfortunately, it never seems to work.
    20. Re:My question by A+non-mouse+Coward · · Score: 2, Informative

      Riiiiight.
      Because the "WAP is open" defense works so well.

      --
      libertarian: (n) socially liberal, financially conservative; neither left, nor right.
    21. Re:My question by WilliamTS99 · · Score: 2, Informative

      "regardless of how bad WEP is, for any random house in any random neighborhood it's good enough"
      I know a handful of people within a couple blocks of me that LOVE the way you think :-)

      WEP = breakable within about a min(about 5max) with tools that my 10yr old daughter could find and use.
      Not only that but once the wireless is compromised, so is the wired side.

  2. Favorite question so far... by hal2814 · · Score: 5, Funny

    Q: "Is wireless [Wi-Fi-based] VoIP worth the bother?"

    A: "Generally, no."

    Sponsored by AT&T

    1. Re:Favorite question so far... by Zonk+(troll) · · Score: 2, Insightful

      Sponsored by AT&T


      You mean "the new at&t" don't you? It's lowercase now so it's less threatening!

      Your world. Delivered.

      ...to the NSA


      --
      "The Federal Reserve is a fraudulent system."--Lew Rockwell
      End The FED. -
    2. Re:Favorite question so far... by Deliveranc3 · · Score: 2, Interesting

      Ancedote, I have a Ghost Phone. It has no record with any phone company, never gets a bill and can make unlimited calls anywhere.

      Now none of the phone hacker people are willing to help me move the ghost account to a new phone, this old one gets terrible reception and has 3 hours standby.

      But how much is this phone worth, how much is the freedom to never worry about a bill worth? Not to look at the clock not to wonder if you're going over? Well I offered my sister $1200 for the phone 3 years ago (She had it first with over 4 weeks talk time on it [she literally talked for weeks on this phone])... she told me no in a heartbeat.

      $40 a month doesn't sound like much but the peace of mind of not having to deal with cell phone companies when you want to upgrade a phone or deal with them at all, is priceless.

      Free service is possible, and it's nice, I recommend it to everyone... if there was free service for the .11G phones I'd be all over them in a second.

  3. Pure FUD by mr_stinky_britches · · Score: 2, Insightful

    This article is pure FUD (thats Fear, Uncertainty, and Doubt). The questions in TFA are not so much burning or on fire as the title would suggest..

    --
    Wi-Fizzle Research

    --
    Censorship is obscene. Patriotism is bigotry. Faith is a vice. Slashdot 2.0 sucks.
  4. Which wireless security threats are scariest? by $RANDOMLUSER · · Score: 4, Funny

    I voted for Tesla coils.

    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
  5. The real questions about WiFi: by Opportunist · · Score: 5, Insightful

    1. Why can't Router manufacturers make WPA the default and use "no security" instead?

    2. Why can't we get the information just how far away the "full bandwidth" works, instead of finding out without fail that most APs can hardly provide the promised bandwidth over distances more than 5 yards?

    3. How long 'til we can't use WiFi anymore because all frequencies are already taken by your neighbors and the companies around you? Worse, can you soon be forced to discontinue your WiFi use because the company next door needs your frequency? (Because, yes, it's unusable past 20 yards but can easily interfere with networks a few miles away, it seems)

    4. What's the legal implication when someone uses my WiFi AP without my consent by hacking into it and distributing illegal material through it? I'm waiting for the first verdict where you have a completely secure AP, someone still manages to break it and then...?

    5. In turn, what about "free" APs, kept open deliberately. What about town wide WiFi networks, a few cities already started a project but they never went anywhere. Care to tell us why?

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    1. Re:The real questions about WiFi: by cdrguru · · Score: 2, Interesting

      WPA requires support in the device connecting which isn't always there. It also requires a lot more effort on the user's part to connect up. If routers came with RADIUS servers where you had to log in it would be much simpler and clearer for everyone... but no.

      WiFi is on an unlicensed frequency, which pretty much means that as long as the power is low nobody can complain. I suspect there will be a licensed version of WiFi at some point where you buy a license for a geographic area and a channel. This would eliminate 90% of the problems with commercial use, such as the microwave oven kicking everyone off at Starbucks where you are paying for access. Companies would also have the same thing for "mobile workers" so nobody gets kicked off. On the free unllicensed frequency you are going to take your chances and it is going to get very, very crowded.

      Leaving an AP open means you are providing a service for others to use. Your user agreement with them is going to control how they use it and who is responsible for materials being transferred. What? No user agreement? Well then, I guess you are going to be responsible unless you can convince the judge that just anyone might have been using it and you wouldn't have any idea. Sort of like leaving a gun laying around - if someone gets shot you aren't really responsible are you? It is going to depend on the prosecutor and the judge.

      I don't know of any "free" (as in taxpayer-supported) municipal WiFi network that has gone anywhere at all. Lots of networks just joined up with T-Mobile, Boingo and others for billing. Yes, you have to log in so the know who you are and they do have a user agreement that you have to accept.

    2. Re:The real questions about WiFi: by Idbar · · Score: 3, Interesting

      1. Why can't Router manufacturers make WPA the default and use "no security" instead?

      I say, why WPA, why not WEP or 802.1x? Because everything is based on Drafts not standards so everyone does what they want.

      2. Why can't we get the information just how far away the "full bandwidth" works, instead of finding out without fail that most APs can hardly provide the promised bandwidth over distances more than 5 yards?
      That mainly depends on both your router and your network card, therefore it's quite complicated to know exactly these distances. You might as well buy a 1W router and radiate everyone around you. They are only US$1000+

      3. How long 'til we can't use WiFi anymore because all frequencies are already taken by your neighbors and the companies around you? Worse, can you soon be forced to discontinue your WiFi use because the company next door needs your frequency? (Because, yes, it's unusable past 20 yards but can easily interfere with networks a few miles away, it seems)
      Frequencies around 2G are not licensed, reason why cordless phones and later WiFi routers were put into that range. As long as you don't radiate too much power, it shouldn't be a problem. You can switch among (at least) 3 non-interfering channels or 11 channels in total, without counting on the SSID. Of course the more devices you have attached, the worse the performance (which takes you again to your 2nd question).

      What it comes to my mind is, WHY people keeps using SSIDs like "linksys" or "netgear", and the really poor implementation of the wireless connection managers in MAC and Windows (Linux is primitive, but at least does what you want).

    3. Re:The real questions about WiFi: by dave562 · · Score: 2, Informative
      I suspect there will be a licensed version of WiFi at some point where you buy a license for a geographic area and a channel.

      This is antecdotal at best and coming twice removed from the source, but I will offer it up anyway. A client of mine is in a business that involves running trucks from southern California up into the central valley as far north as Madera/Dinuba. They wanted constant radio communication with the trucks but realized that they couldn't do it with what was publicly available. What they had to do was license a portion of the spectrum from the FCC. Now they are allowed to broadcast on that spectrum over most of southern California and out to the channel islands (Catalina, etc). To offset part of the cost of owning the spectrum they are selling wireless internet to boats. They are also getting real time data feeds from the trucks. They are using Motorola radios and the guys who are building out the infrastructure for them are a big government contractor who also happen to do radio stuff for oil companies down in Africa. So the technology is there to do long distance, high speed wireless if you have the money. It's just slowly trickling down into the public sector via 802.11n and what not.

  6. What I want to know is by rsilvergun · · Score: 3, Interesting

    What the heck are we going to do about everyone and his bro having his own wireless router? It's a special kind of heck when you've got an apartment complex with 7 or 8 or 10 wireless networks all in range and all competing. Add to that cell phones, wireless cameras, printers, etc, etc, and wireless is rapidly becoming useless...

    --
    Hi! I make Firefox Plug-ins. Check 'em out @ https://addons.mozilla.org/en-US/firefox/addon/youtube-mp3-podcaster/
    1. Re:What I want to know is by ATMosby · · Score: 2, Funny

      All you need to do is get 11 spare wireless routers and 11 high power antenna's. Don't hook them up to anything. Generate lots and lots of traffic/noise. Make all wireless useless where you live. After a month or so you won't have anyone else trying to use wireless around you. Repeat every so often.

    2. Re:What I want to know is by mrzaph0d · · Score: 2, Interesting

      I know in my neighborhood Verizon rolled out FIOS recently. Anyone signing up got a free wireless router. So far I've only detected about 3-4 maximum at a time, but I wonder how long before the neighborhood saturates to the point that it gets too crowded to get a good signal from my own router.

      --
      this is just a placeholder till i send back my real sig from the future.
    3. Re:What I want to know is by crossmr · · Score: 2, Informative

      While interesting, a much friendlier suggestion would be to use that paint/wallpaper that blocks wireless signals. Put it on your exterior walls and ceiling. Encourage your apartment company to do it in all suites. Or at least your downstairs neighbour so you can be fairly insulated. Not only do you free up your air space for your wireless access point so you can get good speed to the device, you also reduce the interference on any 2.4 GHz phones you might have/want to use.

  7. printer friendly version by BestNicksRTaken · · Score: 2, Interesting
    http://edge.networkworld.com/cgi-bin/mailto/x.cgi? pagetosend=/export/home/httpd/htdocs/news/2007/061 107-burning-questions.html

    Yeah, I know it looks like some dodgey mailer script, but it just uses Javascript form elements to fill in bits of their standard printer page, instead of making a proper URL. Of course GET vs. POST is not checked ;-)

    --
    #include <sig.h>
  8. My question: by DogDude · · Score: 2, Insightful

    When is wireless not going to suck? Seriously. I don't use it because of absolutely rotten reliability. Inconsistent speed, and intermittent connections are a rotten tradeoff for being able to save a few wires here and there.

    --
    I don't respond to AC's.
  9. Re:Somewhat OT question about wireless network by mr_stinky_britches · · Score: 2, Interesting

    How about creating a LAN over the power lines in your residence?

    Here is some more information from wikipedia: Power line communication for home networking

    I have a friend who did this at his house and it worked out nicely for him.

    Good luck!

    --
    Wi-Fizzle Research

    --
    Censorship is obscene. Patriotism is bigotry. Faith is a vice. Slashdot 2.0 sucks.
  10. Is 802.11n more reliable? by jonnyj · · Score: 5, Interesting

    The article seems to assume that 802.11n offers so much more bandwidth that no-one will bother with ethernet any more. Unless the new standard is less susceptible to neighbouring networks, that's just not the case

    18 months ago I set up a MythTV setup based around an 802.11g wireless network and, at first, it worked flawlessly - two clients and the server could simultaneously stream TV to/from the router. Then my neighbours started using own networks in anger and the bandwidth available to me gradually dissolved.

    Now my network can't come close to supporting one streaming device. Even surfing the net wirelessly is painful, with regular 2-3 second dropouts when the whole street hits the airwaves simultaneously. I've long since given up on wifi and switched to homeplug.

    I'm not alone. Most people I know who live in densely populated areas have the same problem. Does 802.11n suffer from the same problems? I imagine that the increased range will just lead to increased contention when its popularity increases. I'm not about to buy it.

    1. Re:Is 802.11n more reliable? by CallFinalClass · · Score: 5, Interesting
      N suffers from all these problems.

      Let me be more specific - 2.4 GHz N suffers from all of these problems. For now, I expect the 5 GHz N implementations to be in much better shape.

      Tip of the hat to Apple for making all of their N gear 5 GHz capable.

      Wag of the finger to just about everyone else for making their stuff 2.4 Ghz only, likely for backwards compatibility and cost savings.

    2. Re:Is 802.11n more reliable? by karnal · · Score: 2, Interesting

      The problem with the airspace within the specific band is that there's only so much bandwidth, and that is shared by all devices on that channel, whether they're a part of your network or not.

      Of course, this can be mitigated by making your signals stronger (i.e. sitting the devices right beside each other) so that the other devices don't interfere with your signal.

      I use wireless A at my place of employment, and I've run into another issue - if I have three people on wireless, and I start transferring a large file (using a good portion of the wireless signal) the other people get squat, and it shows by watching their e-mail sessions just sit there when they try to open the client.

      Wireless is good for some things (mobility,) but when it comes to doing large data push/pulls, grab the wire. Your Myth setup isn't a huge drain on even a 802.11g network, but if others in your area are chatting at the same time in a similar channel (peer-to-peer networking?) you'll not have a good time.

      --
      Karnal
  11. These questions are answered by postbigbang · · Score: 2, Informative

    1) all the vendors that I've seen have WPA turned on by default. They didn't use to, but then cars didn't have seat belts years ago, either.

    2) you can find lots of information about bandwidth. The same site as the article cited has product reviews on ftp throughput; it's about a max of 3/5ths stated bandwidth or less.

    3) this already happens. Use 802.11a instead. There are tons of non-interfering channels and you can get double-data-rate schemes with them.

    4) someone using your wifi might be legal, but it depends strictly on where you live and what laws apply there. Generally, it's not legal in the US, but there have been few prosecutions. 'Hotspots' are generally thought to be legal to use if they self-identify as 'free wifi' or 'hotspot' etc.

    5) use free WiFi sources where you find them. Go to muniwireless.com to understand how muni-wifi projects are tougher than they seem. Nice idea. Expensive and tough to do, and to manage (low) expectations.

    --
    ---- Teach Peace. It's Cheaper Than War.
  12. Re:Do you know how much time that takes by CastrTroy · · Score: 2, Interesting

    Maybe they could put an LCD Display on the front on the router that can display the default password. The default password is randomly generated when it it plugged in for the first time. It can be regenerated by pushing some button on the router. 1 hour after the first connection has been made, the password stops displaying. I'm not sure what the best solution is, and I realize that it should still be possible to create an open access point for those that wish, but I think they should make it a lot harder for the average joe to do that.

    --

    Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
  13. VoWiFi FUD by mach1980 · · Score: 3, Informative

    The article mentions VoWiFi quality as poor, which makes me believe that the writer is handling the truth somewhat irresponsibly.

    I work for one leading VoWiFi company that currently installs a lot of systems at US hospitals. Do you think the hospital administrations should accept anything than perfect performance?

    A MOS of 4.2 using ETSI's own measurements and seamless handover is what we are talking about. Not FUD about dropped calls etc. Our i75 passed Cisco's own certification program before their own product and has won a number of prices for best product.

    Y.T.

    --
    Break the sound barrier - bring the noise.
  14. My answers, now forward this to 20 friends... by pla · · Score: 2, Interesting

    What impact will 802.11n have?

    It will replace 802.11a/b/g, but beyond that, none. Speed really doesn't count as the biggest problem with wireless - I'd personally put "reliability" at #1 and "security" at #2.


    Which wireless security threats are scariest?

    The DOJ sniffing your traffic from outside rather than needing to at least enter the building (and thus possibly get caught on your security camera(s)).


    What of wireless VoIP?

    What of it? Whether you use a VOIP set that connects via 802.11, or a VOIP set that connects a base station via ethernet and has a cordless handset makes no difference. Except, perhaps, that while the 2.4GHz spectrum has gotten rather crowded lately, the 800MHz range used for cordless phones has become less congested in recent years.


    Will your organization need to change to support enterprise mobility?

    Probably, because most enterprise apps tweak if they lose their network connection even momentarily - See my first answer.


    How do you control costs in an expanding mobile and wireless environment?

    "The only winning move is not to play".


    What can you do to stop wireless denial-of-service attacks?"

    1) Use a wire.
    2) Wait for the entropic death of the universe.
    Seriously, no realistic solution exists between those two - A wireless DOS doesn't take anything high-tech... A spark-gap transmitter will do nicely. And don't forget "unintentional" DOSs... At my house, I suffer one every few second due to a nearby airport's radar (again, see my first answer), thus I almost exclusively use a wired connection except for totally noncritical and connection-state-less uses such as surfing the web from my couch.

  15. Re:Parent is on crack by LurkerXXX · · Score: 2, Insightful

    It is much like a gun. If you don't properly secure it, and your child gets a hold of it and shoots someone (accidentally or otherwise) they're going to be pretty hard on you if you left it loaded on the couch.

    What a complete load of crap.

    Is there some law that says access points have to be controlled like guns?

    Did you need to get a license for your wireless router?

    Was there a 3-day waiting period to get one when you went to Best Buy?

    Have you told your local Starbucks/coffee-shop or University that they better turn off their open access points or risk going to jail because they are essentially throwing around loaded guns?

    No???

    Having an open wireless access point isn't against the law. Why would they 'be harder on you' for doing nothing more than having an open access point? Either you have kiddie porn on your machine or not. If you don't then don't be a wimp and live your life in fear.

    Do you put boots on all four tires of your car each night to make sure no one steals it and kills someone with it? Why not? THEY COULD!!!

    Don't give in to the overreaction and ignorance. Fight it. We need to fight it.