How to add delete routes in linux

There are two commands which are useful either to add or delete route, those are  route and ip. We will see how to change route using command route.

Route Synopsis

route[-v] [-A family] add [-net|-host] target [netmask Nm] [gw Gw] [metric N] [mss M] [window W] [irtt I] [reject] [mod] [dyn] [reinstate] [[dev] If]route[-v] [-A family] del [-net|-host] target [gw Gw] [netmask Nm] [metric N] [[dev] If]route[-V] [--version] [-h] [--help]

Adding route

sudo route add -net 192.168.3.0 gw 192.168.1.1 netmask 255.255.255.0 dev eth0

Deleting route

sudo route del -net 192.168.3.0 gw 192.168.1.1 netmask 255.255.255.0 dev eth0

A quick way to add default route

route add default gw 192.168.1.1

A  quick way to delete defualt route

route del default gw 192.168.1.1

Reference : https://howto.lintel.in/add-delete-routes-linux/