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Microsoft Virtually Duplicates Your Wireless Card

akhomerun writes "Microsoft has released version 1.0 of its experimental new VirtualWiFi Software. The free software enables Windows users to use a single wireless card to connect to multiple wireless networks simultaneously. The current build is a very primitive release, with no support for WEP or WPA encryption."

16 of 222 comments (clear)

  1. Easier Wifi Man in the middle attacks? by random_culchie · · Score: 5, Interesting

    You need two Wifi cards to do some man in the middle attacks..

    Will this make it easier ;)

  2. Network Bridge? by AnimeEd · · Score: 5, Interesting

    Does this mean we can connect to an AP and then connect using ad-hoc using the same card to another computer? This would result in a relay

    1. Re:Network Bridge? by Fortress · · Score: 4, Informative
      Does this mean we can connect to an AP and then connect using ad-hoc using the same card to another computer? This would result in a relay

      Only if there is routing between the two connections, which I suspect will be optional.

    2. Re:Network Bridge? by morgan_greywolf · · Score: 4, Informative
      Does this mean we can connect to an AP and then connect using ad-hoc using the same card to another computer? This would result in a relay
      Only if there is routing between the two connections, which I suspect will be optional.
      Or bridging. Windows XP has built-in bridging. Bridging is different than routing in that it occurs on Layer 2, while routing occurs on Layer 3.

  3. What the crap? by wolrahnaes · · Score: 4, Insightful

    This just doesn't look like typical Microsoft, and IMO that's a good thing...

    Source code, a simple web site, and command line operation.....what more could I ask for?

    Thanks, Microsoft (geez I still feel wierd saying that....)

    --
    I used to get high on life, but I developed a tolerance. Now I need something stronger.
    1. Re:What the crap? by Jugalator · · Score: 5, Informative

      I see it's from their research division... They sometimes seem uncorrupted by their marketing machine. ;-) They have other projects going on too, like ConferenceXP (yes indeed, source here too), and Netscan. Kind of interesting projects actually.

      --
      Beware: In C++, your friends can see your privates!
    2. Re:What the crap? by mattjb0010 · · Score: 5, Funny

      This just doesn't look like typical Microsof

      A primitive release with security to be added later? Sure sounds like Microsoft to me.

  4. Not SDR...? by ottffssent · · Score: 4, Interesting

    The blurb makes it sound like this is essentially a way to quickly switch the hardware from one AP to another, buffering packets until the hardware is connected to the proper AP. I'm curious how efficient this process is, as there's bound to be some switching latency. For low-bandwidth non-latency-bound tasks, I assume it's virtually seamless, but I wonder how non-latency-bound you'd need a task to be before it starts becoming problematic.

    Wouldn't a proper software-defined radio be the real solution, allowing connections to 2 APs simultaneously with only one antenna? Obviously Microsoft's working with what they've got, and it's certainly an interesting capability, but I'd rather see real effort on SDRs, particularly the regulatory issues therewith.

  5. With Source ??? !!! by Gopal.V · · Score: 4, Interesting

    Microsoft releasing tech previews with source code ? I mean, what has the world come to ?. Oh, sure it is under Shared Source license - but it raises serious questions about the way MS is dealing with the latest challenge from F/OSS. After all students are the major inflow of talent into F/OSS (starting from Linus Torvalds ...).

    The only thing that scares me is that their website has an image that is 960x720 px resized using img tag height and widths - Which looks like it was done in powerpoint using 3DText. I wanted to pull the code and read it to see if it was some kind of trojan or something. All in all, it looks too unprofessional (website mainly) - at least compared to all the open source project sites I've run into.

  6. Not free software by frp001 · · Score: 4, Informative

    This is Shared Source NOT free software.

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  7. Original Page... by perlionex · · Score: 5, Informative

    ... found using Google, at: http://www.cs.cornell.edu/people/ranveer/multinet/ software.htm And the author's page, which follows quite naturally: http://www.cs.cornell.edu/people/ranveer/ ...which, if you look at it, will explain the origins of this "Microsoft" project :) His papers on "MultiNet" date back to June 2003.

  8. Association and authentication delays by Anonymous Coward · · Score: 5, Interesting

    The comments on the website indicate that the code buffers traffic meant for another AP between switching networks. This of course is hindered by the time it takes to complete the 802.11 authentication and association exchange as indicated with the suggested timer values for the supported wireless cards.

    Intel Centrino cards are well-known in the industry as being particularly aggressive at associating and authentication to an access point after being deauthenticated, thereby shortening the time needed to switch between different networks. It's unfortunately Centrino cards aren't on the supported list yet, they would make for an interesting evaluation target to use this kind of technology in a sort of mesh wireless network.

  9. Thanks by thedarkone64 · · Score: 5, Funny

    Thanks, Microsoft (geez I still feel wierd saying that....)

    Why should you feel weird saying that? I say it all the time. Oh wait, I normally say it sarcastically.

  10. Re:I wonder... by svanstrom · · Score: 4, Informative

    You could use it to share a WLAN with a second computer/PDA/whatever, which can't connect directly... either because it's too far away, or isn't allowed (hasn't paid, not part of the company or simply blocked because some idiot login-requirements forcing people to use IE).

    --
    perl -e'print$_{$_} for sort%_=`lynx -dump svanstrom.com/t`'
  11. Re:Linux equivalent by pixr99 · · Score: 5, Funny

    Yep, at the tender age of five, Linus Torvalds conceived a method by which to clone network interfaces in the, as of yet, nonexistent Linux kernel.

  12. Bonding? by Fortress · · Score: 4, Funny

    I'm really only interested if I can bond the two connections together and stea^H^H^H^H borrow twice as much bandwidth.