You seem to be have routing issues and nothing is really breaking at all. Set your default route as eth0 with:
route add default gw 192.168.1.1 eth0 replace the ip with your routers ip Now when you plug in eth1, which seems to be getting an ip address from somewhere(router?) then things won't get mucked up. Also... check your /etc/network/interfaces and see if eth1 is set as iface eth1 inet dhcp. If it doesn't say static(which is highly doubt) you need to grab a how to for nat with iptables on Debian. On Sun, Jan 4, 2009 at 9:47 AM, Daniel Eggleston <[email protected]> wrote: > My guess is that your routing table has changed when you plugged in eth1 -- > can you cat your /etc/network/interfaces to us? An allow hotplug line for > eth1 would be a red flag. > > > On Sun, Jan 4, 2009 at 4:41 AM, SPX2 <[email protected]> wrote: > >> >> >> >> I have a debian install on a machine with 2 eth cards,eth0 and eth1. >> eth0 has been configured using pppoeconf for a pppoe connection which >> is working fine. >> eth1 was meant to be there in order to provide for a nat so that an >> internet connection can be provided to another computer also using >> debian. >> The moment I plug in the cable to eth1 , eth0 stops working. >> (Is this caused maybe by hotplug ?) >> The goal was to actually get eth1 working also without breaking eth0's >> connection and afterwards make a nat using iptables. >> The same thing was done using Slackware and netconfig+pppoeconf and >> there >> were no problems. >> The pppoe is up using the pppd service and it was configured using >> pppoeconf. >> >> >> I tried to find out the problem by trying to find out which file is >> beeing >> modified when I plug the cable in eth1 so I did >> strace ifconfig eth1 2>&1 | grep open >> I got a list of files and I suspect /proc/net/if_inet6 is the file >> that ifconfig modifies and reads thata from. >> So I decided to do sudo lsof | grep if_inet6 in order to find out >> what process uses the hotplug feature to autodetect when I put the >> cable >> inside eth1. >> Unfortunately I find no process that did this. >> >> What should I do so that the internet connection doesn't drop when I >> plug in the cable for eth1 ? >> >> > > > -- > > Daniel > > > > > -- A healthy diet includes Linux, Linux, and more Linux. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Linux Users Group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] For more options, visit our group at http://groups.google.com/group/linuxusersgroup -~----------~----~----~----~------~----~------~--~---
