One of those stupid problems......

Discussion in 'Home Networking' started by Mike Scott, Jun 28, 2005.

  1. Mike Scott

    Mike Scott Guest

    *BSD machine as router with 192.168.0/24, 192.168.1/24 and cable modem
    interfaces. No problems talking between machines on the two subnets or
    out to the wide world.

    F5D7130 WAP connected as

    When I installed this, I set the netmask for the WAP as and
    used a proxy arp demon on the gateway so the WAP could access the other
    subnet. It's worked well enough. Today, having forgotten why I did
    this and deciding to tidy up, I stopped the proxy arp, and set the WAP
    netmask to The WAP promptly ceased to respond to
    anything on the 192.168.0 subnet; tcpdump showed icmp pings headed out
    to the WAP, nothing coming back. Nothing would coax it into responding.
    Looks like there's a fault with the subnetting on the WAP.

    I've had to restore the original settings, and all is now working. My
    suspicion is that it "knows" 192.168 "should be" a /16 subnet and
    behaves accordingly, but I can't be sure. Does anyone know of any
    problems with Belkin's firmware in this regard?
    Mike Scott, Jun 28, 2005
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  2. Mike Scott

    Alex Fraser Guest

    The AP needs to know the route for You can probably
    configure the address of the router as the AP's default

    Alex Fraser, Jun 28, 2005
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  3. Mike Scott

    Alex Fraser Guest

    Hmm, reading the manual, it doesn't seem like you can set up any routing at
    all; the AP can only talk to the attached network.

    An alternative to proxy ARP would be to NAT traffic from
    destined for the AP (just the AP, not the whole network). I know how to do
    this with Linux but have no networking experience with any BSD. In any case,
    whether this is any better than proxy ARP is debatable.

    Alex Fraser, Jun 28, 2005
  4. Mike Scott

    Mike Scott Guest

    Alex Fraser wrote:
    Ah, now that jogs my memory - thanks! Knew I was missing something
    vital. I remember now that I expected to see a default gateway when I
    installed the unit. I didn't, so stuck in the poxy arp as a
    work-around. Interesting that the bridge (F5D7330) can have a gateway

    Put it down to rotten firmware design then - I guess that's the last
    Belkin unit I buy :)
    Not sure about that - I'll leave the proxy arp, as it seems to work. I
    really must document things better!!

    Thanks again for jogging the old brain-box.
    Mike Scott, Jun 28, 2005
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