In Client-bridge mode, does the router hold the connection o

Discussion in 'DD-WRT Firmware' started by crawdaddy, Feb 25, 2006.

  1. crawdaddy

    crawdaddy Network Guru Member

    I have a link that's .2 miles away from me running dd-wrt (v23final I think). On my end, I'm also running dd-wrt. I have a 15db omni antenna and a 1 watt bidirectional amp running on my local router. My router down the street I have a pair of radioshack 5.5db omnis on the router running at 35mw. Now this link seems to appear and dissapear periodically from the wireless client list on my router. My grandfather (the client) doesn't have his laptop connected to the router through cat5 all the time, so my question is this. When there are no connected clients on a client bridge, does dd-wrt allow the connection to be broken? I'm not sure if it's a loss of signal issue, or dd-wrt just deciding it's not needed ATM, so there's no need to hold the link. Thanks. As a side note, I think I'm getting false rssi readings with my 1 watt amp. When my client is there, the rssi holds somewhere around -8 to -12, which seems a bit too obscenley nice. Any ideas? Thanks
  2. tlj

    tlj Network Guru Member

    get rid of the 1 watt amps

    If you are only running .2 (point two) miles, get rid of the 1 watt amps.

    You are way overkill on power and injecting noise into a connection which would be faster without the amps.

    In addition, if you are using 802.11b amps - they can not handle 802.11g traffic. The modulation uses different methods between 802.11b and 802.11g.

    An 802.11g amplifier will work with 802.11b & 802.11g connections

    An 802.11b amplifier will only with with 802.11b connections

    If you have good antennas (no amps), you should be able to easily establish 3 miles with no problems (if you have line-of-site).
  3. crawdaddy

    crawdaddy Network Guru Member

    that's the trick here, I have pseudo LOS. Part of the reason for the omnis. The other reason is that I'm working on a related project where omnis would be needed. It is a 802.11g amp, even though for connection and usefullness sake, only 11mbit is needed, and I don't even need that, since just DSL is running through it. Oh, and I only have 1 amp, on my headened.
  4. crawdaddy

    crawdaddy Network Guru Member

    hrm, no ideas as to whether dd-wrt holds the connection open?
  5. xrattiracer

    xrattiracer Network Guru Member

    hmm, 1 watt amp + 15 db antenna = very illegal power transmission levels ;)
    use directional antennas if at all possible, especially at the client end (theres really no need for omnis here). it will really help with noise levels, since an omni picks up noise from 360 deg.
    other than that im not really sure what could help, but i do agree that -8 to -12 seems a bit optimistic (if the units are dbm anyway).
  6. crawdaddy

    crawdaddy Network Guru Member

    I understand about my extreme illegal overkill on the amp and antenna. But does the DD-WRT firmware in client bridge mode disconnect from the AP when there are no clients connected to it, and therefore no need to keep connected to the AP. Thanks
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