WRTSL54GS set-up question

Discussion in 'HyperWRT Firmware' started by shikotee, Nov 14, 2006.

  1. shikotee

    shikotee LI Guru Member


    First of all - thanks for taking the time to read my post!
    I posted earlier, but my write up was very long winded, which I'm sure just scared people (I thought - the more detail, the better?). Rest assured, I've spent days trying to research this, and while I've found lots if info on the WRT54G models, I'm not certain if it all applies to the WRTSL54GS.

    I am purchasing a WRTSL54GS, which i will flash with Thibor15c (which I have never used). I will need to extend the wifi range from the 2nd floor to the main floor and basement.

    1) Would hooking up a 2nd router (like a WRT54GL, also flashed) and using it as an access point be a good option, or would this be problematic for heavy wifi torrent internet traffic? I know it can be done, and I am somewhat aware of how to do it - I just want to know if doing this would cause any problems. Does the WRTSL54GS work well with the WRT54GL? Is there anyone out there that has this kind of a set-up?

    2) Is it absolutely necessary to use cross-over cable, or could you use standard (already installed) cat5 cable? I've used standard cables to link two DI-624's, and it seemed to work.

    3) Lastly, with Thibor15c, is there anyway to limit bandwidth for torrent programs that are used while using wifi, while having different rules for a desktop that will be wired to the router? My understanding is that QoS allows me to restrict upload bandwidth, but not downloading. Are there any work arounds in doing this from the router end?

    If anyone can offer some advice, I would really appreciate it.
  2. ifican

    ifican Network Guru Member

    No your other post was not to long or to detailed, the more detailed the better. The reason it probably didnt get response is no one really knows for sure. I can say this the SL54GS with Thibor code is awesome, but i cannot answer with an certainty any of your other questions, should it work yes, if given the option definetely go wired between the devices. As far as the cable is concerned as long as the port is MDIX then it will not matter what cable you use to connect it (as long as its not a telephone RJ-11 which will click into place). As far as the rest of it I dont know I will have to look at the QoS of mine to answer some of that, I can do so when i get home later if no one has posted.
  3. arigosh

    arigosh Network Guru Member

    I am not sure I understood how you intend to connect your network. Are you trying to create a wireless bridge between the WRTSL54GS and the WRT54GL? Or do you just want to use the WRTSL54GS as both a router and an access point and use the WRT54GL only as an access point while connecting the two with a wire. Either way works great. If you’re going with the second option, just note the following:

    1. You should hook up one of the LAN ports on the WRTSL54GS with one of the LAN ports on the WRT54GL,

    2. Make sure to change the WRT54GL IP address before hooking it up to the WRTSL54GS.

    3. Turn off the DHCP server on the WRT54GL, and don’t set anything for the Internet connection as the WAN port is not connected.

    4. You should not do any routing, firewalling or QoS on the WRT54GL.

    5. You probably want to use the same SSID on both access points, but use different non-overlapping channels, the three non-overlapping channels are 1, 6, and 11.

    6. REMEMBER – the WRT54GL is acting as an access point only, no router related functionality should be used on it.

    7. AFAIK neither the WRTSL54GS nor the WRT54GL support MDIX, which means you will have to use a cross over cable.

    8. Take a look the grcore’s updates to Thibor15c for the WRTSL54GS, you might find it useful.

    9. Using QoS on the router to limit download bandwidth is meaningless, because by the time a packet reached your router, it already used your download bandwidth, and so nothing your router can do at that point will matter.
  4. shikotee

    shikotee LI Guru Member

    Thanks for the input ifican and arigosh...

    My plan was to use the WRTSL54GS as both a router and an access point and use the WRT54GL only as an access point while connecting the two with a wire. I assume this would be the best way to do this, in terms of transmition speed, correct?

    I was hoping I would be able to use the already existant rj-45 cable that runs between two floors, but if what you said is true, I will have to replace that with a cross over cable instead.

    You mentioned the idea of a wireless bridge between the WRTSL54GS and the WRT54GL. Is this even an option (this is where my lack of wifi networking kicks in)? Would it be possible to have both connected to each other wirelessly, where the WRT54GL would simply boost the wifi signal?
    If done this way, would there be an immense loss of speed (as opossed to the two routers connected by cable)?

    If the speeds are good, I'll just not bother to purchase and install the cross-over cable.

    Thanks for the hook-up advice too, and the clarification about the unability to control download bandwidth from the router.
  5. arigosh

    arigosh Network Guru Member

    It is possible to set the wireless mode on both routers as "Access point + WDS", using the WDS to bridge between the routers while not losing access point functionality. This will definitely be much slower (maximum "real" speed of about 11Mbps under perfect conditions) and might be unreliable depending on the wireless conditions between the two routers.
    If you already have a cable in place, I would go with it, you'll have much less trouble setting it up, and get better performance and more reliability.
    Before replacing the straight cable with a cross cable, test the straight cable with the routers, who knows, I might be wrong about MDIX support on either one, and you might get lucky :)
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