[Network]change route

In RHEL 

add new route

ip route add 10.2.0.0/16 via 172.27.25.1

delete existing route

route del -net 10.2.38.0 gw 172.27.25.1 netmask 255.255.255.0 dev eth1

display route:

route

To ensure it is ok after reboot :

modify /etc/sysconfig/network-scripts/route-eth1

then

nmcli con reload && nmcli networking off && nmcli networking on