[CentOS] Network CentOS 2.1

Tue Nov 24 09:07:34 UTC 2009
Wahyu Darmawan <wahyu.darmawan at gmail.com>

Hi All,
I have 2 LAN interfaces, and just added a new one, but it wouldn't configure.
when I finished configure and I run command ifup eth2 appeared error message :

netmask: Host name lookup failure

Need your help soon.

Thanks,