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Which config is best for DSL...

Discussion in 'Tomato Firmware' started by digitalgeek, Jan 3, 2007.

  1. digitalgeek

    digitalgeek Network Guru Member

    I had a conection problem with my isp today... after playing try to find out what was wrong with my connection (the "tech" support people were useless..:rolleyes: .) I found the ip for my modem( I was able to log in to the modem and enter my ID and password... and the modem connected to my isp on it's own...

    when the connection magicaly corrected itself :confused: I reconnected the modem to my router and the proglem returned. I reset the router and found that with the router set to DHCP (not PPPoE) I was given an address and was able to browse the internet (problem gone)...

    So my question is:

    Is it better to let Tomato manage my connection or my modem?

    FYI... I flash the 1.02 update before I called tech support to see if the problem would correct itself.

    (internet connection was bad before update)
  2. bogderpirat

    bogderpirat Network Guru Member

    hi digitalgeek,

    depending on the quality of your modem (i'm guessing youre from germany - the idiots at the service hotline are from the t-com and your modem is some speedport-router with an integrated modem), you're still probably better off with using the full routing-functionality of your WRT54G* box. they really are a magnificent piece of hardware, if used with a great firmware like tomato.

    if my assumption inside of the brackets is correct (this maybe applies as well if that isn't the case), there should be an option inside the modem's webgui that allows for the router to connect to the internet through the modem. it's called "pppoe passthrough" and just disables the routing functionality of the modem. you will then have to enter your login into the WRT54G for it to handle your internet connection.

    the reason why i'm preferring the WRT54G* as a router over the speedports is the following: if youre using your modem as a router, as well as your WRT54G behind it, port forwarding will be a bitch. you will have to forward twice, once from the modem to the router, and once from the router to your computer behind the router. additionally, the speedport series is known to be pretty unstable when handling routing, especially if there is p2p involved.
  3. digitalgeek

    digitalgeek Network Guru Member

    First... I'm not in germany... I'm in Canada. I call the the tech support and ask for "ENGLISH" (as we do have the french choice) and I get some one who barely speeks english. The lady was spelling every command ... charlie-michael-donald... just tell me to type "CMD". I eventually told her I was not going to coninue talking to her, and could she transfer me to somebody else I could understand... this was after an hour of all the delete cookies, delete temp files, she than asked me to remove IE7 cause (they did not support it...and it was not fully compatible with the OS?...[she had no clue how to use it]) I eventually hung up on her. (It's a pretty good ISP until there's a problem) -- The tech people are just customer service reps who use a check list if customer says "..." then tell them "..."

    The modem is a speedstream 5200. The only "options" available(at least @ are idle time out or Stay connected.

    I kind of agree that the WRT does a good job (even better w/Tomato) and I should let it do it's job.

    (any other comments on this issue would be a good help)

  4. njeske

    njeske Network Guru Member

    When I had DSL (I currently have cable) I used my Speedstream 5200 modem to do my PPPOE authentication instead of the router. Using the router worked, but sometimes rebooting the router when changing settings or uploading new firmware caused the PPPOE authentication to take about 5 minutes to come back. When the modem does my authentication, and the router is set to DHCP, I could do whatever I wanted with the router and never had to worry about waiting for my connection to come back. Just keep your auth information in the modem and keep the router set for DHCP.
  5. digitalgeek

    digitalgeek Network Guru Member

    I have never had a problem with pppoe not reconnecting... as I said it's a pretty good ISP... this is the first time in about 5 years (since I susctibed) that there has been an issue. When I first subscribed I was experince disconnects... turns out it was a bad feed from the curb to my house... the fixed it right away. Since I moved to my new house (about two years ago) I have never had a problem - until yesterday.

    And I stated in my original post... the problem corrected it self???
  6. Devileyezz

    Devileyezz LI Guru Member

    I'm having random disconnects too. Tried with 6250 and 5200.. and they seem fine. But router comes in, and it starts disconnecting like crazy.
  7. bleagh

    bleagh Network Guru Member

    My DSL ISP (Qwest) officially only supports PPPoA. I can also connect PPPoE though.

    For a while is had the DSL modem in bridge mode and let my WRT54GS connect with PPPoE (Thibor15c firmware). This worked great with the Thibor15c frimware, but I haven't tried it with Tomato.

    But lately I have just been letting the modem do the login (I use PPPoA, but it works as PPPoE also). I have the DHCP server on the modem turned on. I set the beginning and ending IP address for the DHCP server the same so it will only assign one address (which is assigned to the router). Then I turned on DMZ hosting on the modem and give it the same address (the one that gets assigned to the router).

    This basically lets the modem train, then log onto the ISP. Then it forwards everythign to the router.

    Then I just set up Tomato for a DHCP connection.

    So I have the DHCP server turned on both on the modem and the router. But the only thing that uses the modem DHCP server is the router. I also have NAT turned on on both the modem and the router. But setting the router assigned address as DMZ host seems to avoid problems common with double NAT.

    If your modem does half-bridging, then that is usually the best way to go (avoids double nat).
    If not, then you may be able to do a fake half-bridge (which is what I did above).

    I prefer half-bridging because the modem keeps the connection, not the router. So I can do whatever I want to the router, and when I'm done it just needs to DHCP connect to the modem.
  8. digitalgeek

    digitalgeek Network Guru Member

    Unfortunatley my modems settings are quite limited so I just let Tomato manage everything. And it works quite well!

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