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multiple wireless usenet downloading

Discussion in 'Tomato Firmware' started by ziddey, Jul 29, 2008.

  1. ziddey

    ziddey Network Guru Member

    two stage wireless fails under heavy load

    EDIT: PLEASE read second post

    Sorry about the vague title. I couldn't think of anything to describe my situation well enough, so let me try to explain:

    I've got two cable internets to use at the moment. A room over, there's a modem hooked up to a dlink di524. In my room, I brought my own modem from my last place (haven't canceled service yet, which explains the extra). The modem is hooked up to my g54s running tomato. I've got a g125 also running tomato that's setup as wireless client to the di524. The g54s and g125 are connected.

    My usenet provider allows connections from multiple ip's. So I've set up my g54s to route one of my usenet provider's ips to the g125, which subsequently goes over wireless to the di524, then the modem to the internet.

    So I'm using 3 connections per ip to use all 10mbit of downstream. When using a computer connected via ethernet, I get about 1MB/s per modem as I should.

    However, if I'm on the wireless that the g54s is providing, I'll only see about 1MB/s. And meanwhile, the entire connection is incredibly unstable. Note that I'm only using a total of 6 concurrent connections, which doesn't come close to torrents.. I see that my modem is downloading at full speed. but looking at the g125's bandwidth page, it'll go up, down, up down. It might download at the full 1MB/s but only for a few seconds, and then it'll die to 0 for a while, and go up again. Again, I'll say that when I'm downloading via ethernet, it's not a problem.

    I don't understand this since the two wireless networks are not on the same channel or even overlapping ones. 1 and 11.

    Any ideas?

    edit: I'll be canceling my modem in a few days so it really doesn't matter. But I'm just curious.
     
  2. ziddey

    ziddey Network Guru Member

    I just wanted to update. I'm currently transferring files from a wired computer to my wireless laptop. Pings to the internet, main router, and secondary router are affected as they should since all the bandwidth is being used (about 40ms to 172.16.0.1 and 172.16.0.2, and about 60ms to 4.2.2.1).

    However, 172.16.0.2 is a g125 running tomato, acting as a wireless client. I've set up routing for specific ips to go through that. And as a result of the transfers, pings to anything on that side goes to absolute hell. I've routed over 192.168.0.1 which is the access point that the g125 is connecting to, and even that is timing out most of the time, if not otherwise having pings in the 1000's of milliseconds.

    Any idea about this? I'm not loading that network or even that router at all.

    Or is the TTL somehow affected? And if so, is there any way I can adjust for this?

    Because back to my original plan, I would be able to pull articles off usenet using both internet connections and effectively double my speed.

    Thanks
     
  3. azeari

    azeari LI Guru Member

    well i doubt its TTL

    anyway ur problem is really vague its hard to diagnose >_<

    could u perhaps post more details on your wireless setup. (i.e. location, proximity from station) so we can get a better idea

    just a note: unoverlapped channels can still interfere with each other in close proximity, i.e. i have 2 stations side by side broadcasting at chans 1 and 11
    or 2 cards receiving on 1 and 11 side by side (they still have to transmit upstream)

    then again, given that your bitrate is pretty low(1mbps), it shouldn't even max out either channel (approx 20mbps on 802.11g).
     
  4. szfong

    szfong Network Guru Member

    Get a Better Router

    ziddey,

    Tomato does not support such a feature.

    Easiest solution for Usenet binary "pirating OR downloading" nut like yourself ---> Multi-WAN routers.

    1. You need either build and configure a multi-wan router yourself using one of the many packages available. Very time consuming and still a bit buggy.

    2. Buy a "good/expensive" one that is easy to setup. I heard Cisco makes a few. ;-)

    3. Avoid Dual-wan routers, ESPECIALLY the cheap ones, they crash or DON'T work as they've "skipped" features, which I consider a must. Linksys makes a few but they "castrate" it to prevent it from cannibalizing their parent company's (Cisco's) more expensive router.

    I built one using an embedded board that cost nearly half a grand and a couple grand of my time, but it was kinda fun. :-|

    If I had to do it again, I would have bought a Cisco and be done with it.

    -Good Luck.
     
  5. ziddey

    ziddey Network Guru Member

    hmm, maybe it is interference.

    I've got my network (g54s) on ch1, and am using a g125 to connect to another wireless ap (dlink di524) on ch11. The two routers are about a foot apart.

    Even putting usenet aside, just saturating my own wireless network makes it near impossible to communicate to the dlink di524 or anything from that point on. Communications with the g54s, g125, and primary internet (through the g54s) is still fine though.
     
  6. ziddey

    ziddey Network Guru Member

    doesn't seem like proximity is the issue. I moved the routers about 15 feet apart and there was no improvement. weird.
     
  7. azeari

    azeari LI Guru Member

    heh the receiving side matters too.. perhaps tts the problem?>
     
  8. ziddey

    ziddey Network Guru Member

    well it's still bugging me but as of tomorrow, i'll be cancelling both cable modems. wonder what the deal was... I went down to the basement where I get no interference and ran the two wireless networks on channels 2 and 11 and had the three routers placed far apart. still the same deal. weird.
     

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