I have a Redhat 7.1 linux firewall/router with the latest kernel. It successfully routes internet traffic to my internal LAN and also port forwards to port 80 to my DMZ windows 2000 webserver. So I have three fully working Network Cards.
My problem is, I add an extra card, becuase I want to create another separate DMZ, and none of my ADSL connections work, nothing routes properly etc.
It's like, as soon as I stick an extra card in, everything changes: eth0 becomes eth1, eth2 becomes, eth3 (for example)! Why does all this shuffling occur?
Thankyou in advance!