CentOS Add Route Command

How do I add route (router IP 192.168.1.254) to my Centos Linux systems from the command line?

You need to use the route command or ip command to add a new route to your kernel routing table.

• route command - show / manipulate the IP routing table
• ip command - show / manipulate routing, devices, policy routing and tunnels

To add default gateway IP 192.168.1.254 using eth0, enter:
# route add default gw 192.168.1.254 eth0
And ip command can be used as follows
# ip route add 192.168.1.0/24 dev eth0
Edit /etc/sysconfig/network and make route persistence after reboot:
# vi /etc/sysconfig/network
Add / edit GATEWAY line as follows
GATEWAY=192.168.1.254

Further readings:

• Red Hat / CentOS Linux Setting a Default Gateway
• CentOS / Red hat enterprise Linux 5 configure the network card
• CentOS / Red Hat Linux Static Routing Configuration

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