Adding / Removing Routes in Linux

Add or Delete the Default Route

# route add default gw 10.10.1.1
# route del default gw 10.10.1.1

Add or Delete a Route for a Host

# route add -host x.x.x.x gw x.x.x.x
# route del -host x.x.x.x gw x.x.x.x

Add or Delete a Route for a Network

# route add -net 172.18.1.0/24 gw 10.10.1.43
# route del -net 172.18.1.0/24 gw 10.10.1.43