Post install for course

DNS client

Alter /etc/resolv.conf to look like this 
    nameserver 198.81.209.2

Default Router

Run this command as root 
   route add default gw 192.168.1.1

Default Router for reboot

Edit /etc/sysconfig/network. Alter the GATEWAY stanza 
    .
    .
    GATEWAY=192.168.1.1
    .
    .