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wrt54g to wrt54g to wrt54g

Discussion in 'Cisco/Linksys Wireless Routers' started by yaksplat, Aug 20, 2005.

  1. yaksplat

    yaksplat Network Guru Member

    Here's what i'm trying to do:

    --- wired
    ~~~ wireless

    broadband --- WRT54G#1 ~~~wrt54gs#2~~~WRT54G#3---network


    Wireless clients need to be able to access any of the 3 routers. There will also be wired clients off of routers 1 and 3. This all happens over about 250 feet and through several walls. The signal strength is Very Good or excellent between all router locations.

    1. I'm assuming that i should use WDS on all routers. correct?

    2. if the speed of the broadband is 3Mb, how fast will it be off of router 2 or 3? Will it decrease to 1.5 and .75 respectively, or is only the total throughput affected, not individual signals ?

    3. With a wireless laptop, could you connect to a specific router, or is it a connection to the general network?

    4. Has anyone done this successfully?

    5. Can this all be done using Alchemy v1.0 ?

    Can i just follow the guide at : Guide to setting up WDS on the WRT54G/WRT54GS and just add another mac address in the WDS section?

    Thanks

    Jim
     
  2. 4Access

    4Access Network Guru Member

    Correct

    An 802.11g connection is rated at 54Mbps. (Which in reality is only good for 20-24Mbps under optimal conditions due to the wireless protocol overheads.) For every additional wireless hop you add between two points the overall throughput between those to points is cut in half.

    In your situation, when considering the wired LAN off router 3, you have two wireless hopes to the modem so you should be able to potentially achieve about 10Mbps between your wired network and the broadband modem. Since the modem is only giving you 3Mbps you shouldn't notice any slow down in your internet connection when surfing from the wired network off router 3.

    Now wireless clients connected to router 3 will have 3 wireless hops to the modem (One from the client to router 3, another one to router 2 and and a third to router 1) and as a result can expect at best around 5Mbps of throughput between themselves and the modem. These clients may experience a slower internet connection especially if you have multiple wireless clients (or even busy LAN clients) all contending for the same wireless bandwidth. Also any 802.11b clients will further slow things down. (Quite honestly though it should be functional without any major problems unless you expect to have multiple busy clients online at once.) See here for a little more on the WDS throughput issue.

    Depends on your client software. Usually you just have the ability to specify which SSID you want to connect to and not the specific AP. (Although you can usually see the MAC address of the specific AP you are associated with.)

    Yes

    Yes but I might suggest taking a look at DD-WRT as well. (I've found it to be a little more reliable for WDS connections and the "WDS/Connection Watchdog" great. It allows you to specify an IP address to check every X minutes and if it can't be reached the router will automatically reboot itself.)

    Yes. I'd recommend keeping the MAC filter & encryption disabled on your first attempt though. After you've got it working enable those one at a time. ;)

    Have fun!
     
  3. yaksplat

    yaksplat Network Guru Member

    If all three routers have the same SSID will the wireless client link to the router with the strongest signal? Is that possible to control? Will all three routers show up in when you view available wireless networks, or will they all be clustered under one SSID?


    Thanks
    Jim
     
  4. 4Access

    4Access Network Guru Member

    Yes when the SSID is the same the wireless clients will connect to the AP with the strongest signal. (Facilitates transparent roaming.) As mentioned above most client software will not give you a choice of which specific AP you get to connect to. You simply get to choose which wireless network you want to connect to and then it decides which specific AP to associate with.
     
  5. yaksplat

    yaksplat Network Guru Member

    Thanks for the info!
     

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