Two nics, but only one can be used at once, why?
I have a pc ( at work) that has two nics (one is conected with our router and the other is conected with our lan), like this:
eth0 (lan) == ip 172.20.1.6
eth1 (router)==> ip 172.20.1.5
router ip ==> 172.20.1.1
The problem is that only one nic work at once, for example, when I configure one nic (e.x. eth0) all works fine but when I configure the second nic, one nic stop. Why? My Linux only accept one nic at once... this is my big problem at moment and if I couldn`t resolve it my boss will put a windows server on this machine.
Please, if anyone could help me to save our Linux territory, are welcome.