How to share wifi connection but forbid the access to LAN?

Discussion in 'General Discussion' started by Anonymous, Feb 22, 2006.

  1. Anonymous

    Anonymous Guest


    I have a Linksys WRT54GL wireless router, with my three PCs connected to it, 2 by Ethernet and 1 by wifi.

    I'd like to share the Internet connection wirelessly (I'll allow his MAC) with a friend, but I don't want him to access my LAN (the other three PCs). Can I do this with this router? What should I do in order to get this?

    Thanks in advance.
  2. NateHoy

    NateHoy Network Guru Member

    I've never tried it, but under Advanced Wireless Settings, you can try "Access Point Isolation" (AP Isolation) which supposedly prevents local wireless machines from routing to each other.

    I'm not entirely sure the native firmware has this. I know that HyperWRT Thibor and Tofu both have it. I've never played with it, though.

    Of course, that puts ALL of your wireless clients in isolation. I think DD-WRT has a way to set up multiple isolated access points on the same router, but I'm not sure.
  3. Anonymous

    Anonymous Guest

    Thanks for your reply.

    I don't want to change the official firmware yet. And if I change it, I want to be sure that I will be able to do what I need.

    I have looked in the router help about the option that you mention, and it's what I need, of course, but I wouldn't be able to use my laptop with the other 2 PCs through wifi.

    Any other ideas? :?
  4. jgutz20

    jgutz20 Network Guru Member

    only thing other than what natehoy told you is local security, setting permissions on shares and requiring login information
  5. skynyrd

    skynyrd Network Guru Member

    AP isolation only isolates wireless from other wireless. It doesn't isolate wireless from wired. There are a few discussions on how to accomplish what you want here but there is no easy answer from what I have seen.

    See this post:

    Also if you figure out a better/easy way post it. I am interested in doing this also but only if it is quick and easy.

  6. itsmeohmy

    itsmeohmy Network Guru Member

    I have read the solution given in that thread and seems easy, but I'm not sure about changing the firmware right now. I think I'll wait to find a less... well, "agressive" solution :thumb:
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