Using WRT54G as WAP only

Discussion in 'Cisco/Linksys Wireless Routers' started by Anonymous, Jun 22, 2005.

  1. Anonymous

    Anonymous Guest

    I have a WRT54G that used to be needed as the router for my internet connection. Now I have a seperate firewall and a windows 2k domain controller which provides DNS and DHCP. I know that I should be using a WAP, but that's not something I wish to purchase since my router is only about 2 months old. How would I need to configure the router so that it only acts as a WAP or is this not possible? I would also be using it to authenticate against active directory, but I have found a tutorial on how to do this. I am currently running the sveasoft firmware.

    Another question I am having is about wireless range. I know that this is probably a very frequently asked problem, but I can't find an answer. I looked at getting one of the linksys repeaters, but they are much more expensive than a WAP or wireless router. Is there a way to configure the WAP or router to act as a repeater on the network? Also, I have read good things and bad things about the external antenaes, such as the ones from hawking.... Do these increase the range of your network or not?

    Third thing, since I have two antenae connectors on my router, can I connect two different types of antenaes to the different ports, such as a directional and an omni-directional or do I have to have two different radios?

    Thanks for reading this!

    Zakir Durumeric
  2. 4Access

    4Access Network Guru Member

    Simply plug the network cable into one of the LAN ports on the WRT and disable its DHCP server.

    I'm assuming you meant to say you haven't found a tutorial... Unfortunately I'm not even sure what you're trying to accomplish. :?:

    If you simply want to make your windows clients authenticate against your domain controller when they log onto windows, just join your wireless PCs to the domain like you normally would. There's no difference between a wired vs. wireless client as far as a windows domain is concerned.

    If on the other hand you are trying to setup some kind of WPA-Enterprise based security for your WLAN and want to host the RADIUS server on the domain controller I don't have much advice for you. I imagine it can be done but I've never looked into it.

    The WRT can be used as a repeater. Look into the WDS option available in custom firmware such as DD-WRT and the Sveasoft releases since Satori 4.0 (In fact in my opinion there's really no reason to get a WAP54G or the WRE54G since with custom firmware the WRTs can do everything they can and more!)

    I used the Hawkings HWU54D Hi-Gain USB Wireless-G Adapter on a wireless project and was pleased with the performance. While I've never used it, the HAI6SDP Indoor Hi-Gain 6dBi Directional Antenna appears very similar and includes an adapter that should work with the WRT.

    Personally though I'd consider trying out one of the templates on first. They are free, don't loose any power due to needing an adapter and actually have a higher gain rating! Specifically check out the "Original Parabolic Reflector Template" and the "Ez-12 12 dB Parabolic Reflector Template V2.0"

    Man you've got a lot of questions don't you! ;) This one I can't answer with much certainty so you'll want try searching the forums at and Sveasoft first for "antenna diversity".

    There seems to be quite a bit of conflicting info/reports on this and I'm no expert. With that in mind, the following is the best I could sort out last time I looked into this issue: Only 1 antenna can be TX'd on at a time. The WRT automatically chooses the TX antenna based on which antenna received the strongest/clearest signal last.

    The problem with this is that if you have both an omni & a directional antenna usually it means you want the router to repeat the wireless signal for local clients to a distant network. The trouble is that when the router receives the traffic from the wireless clients the signal will be coming in strongest on the omni antenna which means the router will TX it on the omni antenna, not the directional.

    There's no way to say that all traffic destined for a specific network should use a specific antenna. Despite this though there were plenty of reports in the Sveasoft forum of people successfully setting up repeaters using the WRT with one omni antenna & one directional. (Apparantely the router will resend the packet using the other antenna if the first choise doesn't work...?)

    The alternative is to use two routers/APs with a cable conneting them together using the LAN ports. Put omni's on one for the local clients & a directional on the other for remote repeating. Just make sure they are using different channels so they don't interfere with each other more than necessary. This will also give you a benefit in throughput over a single repeater.

    Good luck!
  3. Anonymous

    Anonymous Guest

    Thank you, this helps a huge amount! I do mean using WPA-RADIUS against an active directory setup and I DID find a tutorial. My question is whether I can use WDS with it. Thanks,

  4. 4Access

    4Access Network Guru Member

    I'd be interested in looking at that tutorial! Would you mind posting a link?

    Interesting question! I don't know... Sveasoft's Alchemy & DD-WRT support WDS with WPA-PSK but I don't know about WDS & WPA-RADIUS. My initial guess is that if WPA-PSK works then WPA-RADIUS should work as well but that's just a guess based on what I know about WPA. Let us know how it goes if you try to get it working!

    Good luck!
  5. Anonymous

    Anonymous Guest

  6. Anonymous

    Anonymous Guest

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