Michael Heldebrant, 2001-Nov-11 11:06 -0600: > On Sun, 2001-11-11 at 00:26, Michael Patterson wrote: > > Ok, I'm totally frustrated. To bring anyone who doesn't know up to date: > > > > My previous service was "wantweb". I was given a static IP address, upon > > which I set up a debian (potato) box. I used IP masquerading to connect all > > my windows boxes to it (for game playing, you know). > > > > Now I find that the company is going under. enter the cablemodem. I have > > cablemodem service with Adelphia cable. ( @home). it works beautifully when > > I hook up a single windows machine to it, using DHCP.
I have the same cable service, but I've statically set my IP interface. I've had not trouble with this for over a year since the service doesn't rotate or change assigned IP addresses. > > When I hook up my linux box to it, I get terrible performance, and > > eventually my connection to the cablemodem fails. I can get the connection > > back by powercycling the cablemodem. I'm using dhcp-client. I've had no performance issues. > Do you have a firewall in place? I found out about two issues in my > struggles. > > I found that without /proc/sys/net/ipv4/dynaddr set to 1 my second and > future dhcp requests would try and go out the eth1 static internal card > which was being blocked from sent by my firewall (source<=>adaptor > anti-spoofing rules etc). > > I also found that my cable modem keeps sending me IGMP multicast packets > that if I blocked the service would get flaky, at least as far as I > recall. Albiet that this was with pump that had it's own set of > problems but I have charter @home working "almost perfectly" with > dhcp-client. My current setup still requires rebooting the modem (and > perhaps not the pc next time, have to try that) on occassion but > otherwise works very well. I block 3 different type of packets consistantly sent to me without any adverse effects (so far). Two multicast packets and one that I think is coming from my cablemodem itself (?). jc -- Jeff Coppock Systems Engineer Diggin' Debian Admin and User
