[ILUG] Netopia 2247-02 (fware 7.7.0r6) and IP passthrough
linux at sweetnam.eu
Sun Aug 3 15:11:23 IST 2008
Maciej Bliziński wrote:
> I'm playing with a new home network setup. In asciiart, it looks like this:
> DSL line
> Netopia 2247-02 with IP Passthrough option
> OpenWRT Kamikaze 7.09 powered router, with public IP,
> home LAN
> OpenWRT router obtains public IP address from Netopia and does
> NATting. All fine, except... all TCP connections are being dropped
> every 2 or 3 minutes. This means shutting down all ssh sessions, web
> page loading 'gets stuck'. There also are brief losses of sound when
> talking over VoIP.
> TCP connections need to be dropped when the WAN IP is being changed.
> My public IP address indeed changes from time to time, but I also
> observe connections dropped without IP address change. If I'm not
> mistaken, dhcp renewals shouldn't affect existing TCP connections.
> For the time being, I've switched to static NAT, it seems to be
> better. But I'd like to avoid having a private address bound to
> Does anyone here use Netopia 4407-02 IP passthrough function? Is it
> broken, or is it fine?
I have a 3347NWG which I have configured to pass its IP address to a
smoothwall machine, this is almost identical to your diagram. It works
fine for me although I do have a static IP address.
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