WRT600N Config Question

Discussion in 'Cisco/Linksys Wireless Routers' started by enrogue, Nov 27, 2007.

  1. enrogue

    enrogue LI Guru Member

    I have recently acquired the WRT600N. I have a mix of wireless N and wireless G clients.

    I have noticed that the router allows for 2 different SSIDs (one for the 2.4GHz band and one for the 5GHz band). I've also noticed that I can setup the router to have different clients on different bands (ie the G clients on 2.4GHz band and the N clients on the 5GHz band) or just leave everything on AUTO.

    1) Can I use the same SSID for both bands? If so, what will determine which band the client logs on to?
    2) Should I use seperate SSIDs and force the N clients to use the 5GHz band exclusively and force the G clients to use the 2.4GHz exclusively? or just set everything to AUTO??

    Bottom line - what is the best way to configure this thing so that I get maximum range and throughput for both my N and G clients??


  2. thepianobar

    thepianobar Network Guru Member

    The best thing to do is force the clients that are capable of operating in the 5GHz band to do so. I think that this will require separate SSIDs.
  3. enrogue

    enrogue LI Guru Member

    Thanks for the response...

    If I used the same SSID for both bands and didn't force anything (left everything to Auto), which would therefore allow the N clients to log onto either band, what would determine which band they logged into (since the N clients would be allowed on either one!)??

  4. thepianobar

    thepianobar Network Guru Member

    I don't know, it's likely to be driver-specific. My a/b/g/n card allows me to specify Auto/5ghz/2ghz if I open up the properties page in Device Manager. The downside to changing this is that anywhere else your n clients won't see 2ghz networks.
  5. jgdiaz

    jgdiaz LI Guru Member

    I left both bands with the same ssid and in mixed mode and with the channel selection on auto as I have both laptops with N and G wireless cards and I want to be able to see all my laptops in case I need to transfer files between the different laptops. With these settings my N laptops all connect at 270Mbps so I have no reason to separate the channels.

    Update 12/07/2007 - I decided to separate the 2 bands and I actually am glad I did, before I did notice sometimes my N cards would drop to 108Mbps and now with the dedicated 5Ghz band for my N cards only all my 4965N cards always connect at 270Mbps and they never drop or go to lower speeds anymore and I can still see my G devices on the network. COOL!!!!!! :biggrin::wink::)
  6. thepianobar

    thepianobar Network Guru Member

    Two Items:
    1) Even if your laptops were connecting to different SSIDs in different frequencies (2.4 and 5 GHz) they would still be on the same network (i.e. in the same subnet) and able to communicate with each other

    2) Although your N laptops are connecting at N speeds, they may be using the 2.4GHz spectrum just as your b/g clients are and in effect 'stealing' bandwidth from them. Remember that a wireless AP must divide it's bandwidth between every client (only one client can talk with the AP at any given point in time). In respect to available bandwidth for each client, an AP is like a hub.

    However, your current setup is clearly the easiest from a mgmt standpoint, so if you are not seeing any performance issues then I wouldn't change it.

    Does anyone know if .11n clients default to using the 5GHz band if available? if so it would make the mgmt of clients and dual-band APs much easier.
  7. jgdiaz

    jgdiaz LI Guru Member

    I updated my post above and I separated the 2 bands and I like it. My 4965N cards are defaulting to 5Ghz so I guess they do default to this band if they are capable of using it.
    Thanks for the Help!!!!!! :biggrin:
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