How to set default gateway in linux | It’s very important to setup default gateway in linux/solaris/unix server to access the server from client machine. You can configure the static or temporary routing.
Setup default gateway in linux.
Before going to add default gateway in your operating system, delete your existing default gateway if you intend to change it.
#route del default gw 192.168.1.1
syntax to add default gateway:-
route add default gw {IP_Address} {Interface_name}
Here adding correct default gateway using route add command.
route add default gw 192.168.11.1 eth0
Add default gateway in new or old linux server.
#ip route add default via 192.168.11.1 dev eth0
Static route configuration can be done in /etc/sysconfig/network-scripts/route-interface file.
for example, static routes for the eth0 interface can be done as below.
#cat /etc/sysconfig/network-scripts/route-eth0
Later we can check the routing status.
#route -n or netstat -nr
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