To add a persistent static route, you will need to create a route-ethX file.

To add a persistent static route, you will need to create a route-ethX file.

/etc/sysconfig/network-scripts/route-ethXX here refers to your interface number.

Every entry or a route has three lines as follows:

GATEWAY=xxx.xxx.xxx.xxx
NETMASK=yyy.yyy.yyy.yyy
ADDRESS=zzz.zzz.zzz.zzz

As the names implies, they are the gateway IP, Netmask and the IP/Network Address.

Note the number next to each of the three entities. This number defines the route entry number and should be the same on all the entities.

Example:

[root@vm network-scripts]# cat route-eth1
 GATEWAY0=10.1.117.1
 NETMASK0=255.255.255.0
 ADDRESS0=10.1.117.0


#route add -net 192.125.169.45 netmask 255.255.255.255 gw 195.232.168.1 eth1
# cd /etc/sysconfig/network-scripts/
# vi route-eth1

GATEWAY0=195.232.168.1
NETMASK0=255.255.255.255
ADDRESS0=192.125.169.45


Default route is at path:
/etc/sysconfig/network