Route ip via default gw

Question

For a VPN configuration, I need to route a particular public subnet via the tunnel except one of them, because that IP is assigned to the VPN server.

But, because the configuation will fall into multiple particular client setups, I need to avoid define the gateway ip or interface, so I'm looking for the way to add a route to one IP via default gw

ip route add 1.1.1.1/32 gw vi default gw
Error: either "to" is duplicate, or "gw" is a garbage.

Answer 1

sudo route del default
sudo route add default gw 'gw ip'
sudo route add -net 'desired ip' netmask 255.255.255.0 'interface name'

This should do the trick.