I've been experimenting with a local network. Afer using eth0 (DHCP client) to access it KMail and Konkeror wont lokk even though the ISDN line is up and runneing. I've even deleted the configuration for eth0 (even though it is shown as up in the system monitor service. What's happening, and how to rectify?

The dhcp server will probably tell you to use eth0 as your default route. As a result, no packets will go out on the isdn line.

If you remove all eth0 configuration and reboot, then it should no longer show up in the system monitor, and everything should be ok again.

When you continue to experiment with a local network, make sure that the default route points to your isdn card. Only packets intended for the local net should go out eth0

This may mean modifying your dhcp server, not using dhcp at all, or manually editing the routing tables.

Good luck,

Kees-Jan

Correct, thanks a lot. Incidently, that answered another question too. I thought that adding a new network card eth1 and just deleting eth0 would help me circumvent a duff eth0. It didn't. I had to delete and get the new one as eth0, then it worked.