Rewired house, now setting up 2 WRT54G-TM Tomato routers in attic

Discussion in 'Tomato Firmware' started by Maggard, Sep 10, 2008.

  1. Maggard

    Maggard LI Guru Member

    In my basement I've a cable-modem (er, fiber-modem). From it I've had electricians run Ethernet up to my attic, first to AP#1, then across to the other half of the attic for AP#2.

    [basement] ---> [AP1] ---> [AP2]

    The basement box is an Actiontec MI424WR. The two access points are Linksys WRT54G-TM's successfully reflashed with Tomato.

    I've disabled WiFi on the basement box, my goal is to allow WiFi roaming between the two Tomato boxes in the attic.

    Suggestions on the best way to go about setting up the APs? Warnings? Best practices? Recommended reading?

    Thanks in advance :)
  2. HennieM

    HennieM Network Guru Member

    Straight forward - no special tricks needed:

    One DHCP server.

    On all 3 (or 2, but no reason for just 2) APs, set wireless:
    Exactly the same SSID on all 3
    Exactly the same security on all 3
    All APs on same IP subnet
    Each AP on its own channel (like 1, 6, and 11)

    You'll walk your laptop from the basement to the attic and it will roam (just about) seamlessly from one AP to the other.

    If you use WPA2, the roaming should be even faster than with WPA.
    AES encryption gives best speed and best protection of all encrypted protocols, but TKIP and the dreaded WEP also works.

    If your neighborhood has many APs, and you are pressed for channels, you can go down to a channel seperation of 3 (like 1, 4, and 7, or any such combination), but less than that might make for significant interference, giving you bad signal everywhere. Test!

    With 3 APs you can tune down your Tx power, as you will have less power per AP, but more APs spread out over your desired coverage area, which should make for less interference from one of your APs to another.
  3. gregg098

    gregg098 LI Guru Member

    I have a sort of similar setup. Have my cable modem and main router in one room with wireless off. Then I ran cat5 from the main router to additional routers on either side of the house (LAN port to LAN port). For each of these two additional routers, I did the following:
    WAN: disabled
    IP: Next available (, and .3, with the main router as .1)
    Default Gateway and DNS Server: IP of main router (
    Uncheck DHCP server.
    Setup Wireless however you want it. I kept my channels the same, but my routers are pretty far apart.
    Under Advanced->Routing, I set the Mode to Router
    And then I disabled QoS and uPNP (anything else that is running on the main router as it will handle all requests)

    Your setup should be the exact same, except the 3rd router is connected to the 2nd which wont make a difference in this setup.
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