WRT54G as Access Point - firmware options?

Discussion in 'Cisco/Linksys Wireless Routers' started by RoundSparrow, Dec 10, 2004.

  1. RoundSparrow

    RoundSparrow Network Guru Member

    I have two WRT54G's with ethernet cable run between them. One is a router (NAT to Internet) and I want to configure the second as a tradiitional Access Point. Both the same SSID, roam between them freely, extended wireless range, etc.

    Is there firmware to turn a WRT54G into an AP (no routing or NAT, just ethernet to Wireless)

  2. 4Access

    4Access Network Guru Member

    You don't need any custom firmware. Simply disable the DHCP server on the second WRT & then plug the network cable into one of its LAN ports. ;)
  3. Esquire

    Esquire Mesquire Staff Member Member

  4. 4Access

    4Access Network Guru Member

    While setting the routers to different channels is good advice, the part about different SSIDs is a bit odd... To facilitate transparent roaming both routers need to have the same SSID.

    Also, it's probably obvious but there's no technical limitation requiring you to use the ports Linksys suggests.
  5. RoundSparrow

    RoundSparrow Network Guru Member

    Ok, but this isn't the same as having a true AP, is it?

    -- Subnets for IP are not the same.
    -- You are double NATing...
    -- The SSID is not the same allowing free roaming between the multiple AP's.

    or am I confused?

    I have had 3 true AP's connected to a router before and all shared the same subnet / only the router did NAT, and all had the same SSID and clients could roam from AP to AP without having to join different networks or changing IP Addresses.

    Someone see why I'm after a "AP firmware"?
  6. RoundSparrow

    RoundSparrow Network Guru Member

    Ok, I tried it with the stock linksys v2.04.4 on the 2nd WRT54G and it appears to work fine :)

    0. First WRT54G is running HyperWRT 1.4 but I don't think this matters. It is acting as a NAT/Router system to the internet. It has both wireless and cable network devices.

    All the rest is relevant to the 2nd WRT54G:

    1. Internet IP Address to be static IP as the same subnet as the first but unique IP. I don't think this is required, but did it anyway.
    2. Local IP Address. I used a unique IP on the same subnet.
    3. I disabled DHCP.
    4. Set the Wireless WEP keys the same on both routers.
    5. Set the SSID and Channel the same on both routers.
    6. Gave the 2nd WRT54G a different Router and Host name, but don't think this is important.

    Now, I ran a 50' cat5 cable between the standard switch ports of both units. I did NOT use the WAN port of the 2nd WRT54G.

    It appears now I have one single SSID with two different MAC Addreses! This is exactly how things work with two Access Points on the same network. I can now roam between them and it seems to work perfect. I even did some tests to hide the first router/AP from wireless and no drop in connection.. so all is good!

    I can connect to the 2nd WRT54G using both of the IP Addresses assigned (step #1 and step #2). Even though I haven't actually connected any cable to the WAN port.
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