How to configure static and dynamic IP address without using Network Manager

## Note the Ethernet device names[root@rh6 network-scripts]# ifconfig -a | grep Ethernet eth3 Link encap:Ethernet HWaddr 08:00:27:C0:00:D1 eth4 Link encap:Ethernet HWaddr 08:00:27:93:CD:8B virbr0 Link encap:Ethernet HWaddr 52:54:00:63:06:7F virbr0-nic Link encap:Ethernet HWaddr 52:54:00:63:06:7F## cd to network-scripts directory
[root@rh6 network-scripts]# cd /etc/sysconfig/networkscripts ## edit the respective device ifcfg scripts [root@rh6 network-scripts]# vi ifcfg-eth3 ## e.g. Set Static IP for eth3 [root@rh6 network-scripts]# cat ifcfg-eth3 DEVICE="eth3" ONBOOT=yes TYPE=Ethernet BOOTPROTO=static IPADDR=192.168.0.11 NETMASK=255.255.255.0 #GATEWAY=192.168.0.254 IPV6INIT=no ## e.g. set Dynamic IP for eth4 - assuming there is DHCP server on the networ that is connected to eth4[root@rh6 network-scripts]# vi ifcfg-eth4 [root@rh6 network-scripts]# cat ifcfg-eth4 DEVICE="eth4" ONBOOT=yes TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes IPV6INIT=no PEERDNS=yes PEERROUTES=yes