How to allow traffic to bypass the VPN client on a DD-WRT router?

Question

openvpn

There is a router with dd-wrt firmware connected via an OpenVPN client to the Internet. By default, all traffic goes through the VPN.
It is necessary to make sure that the Internet goes to a certain IP (or a certain LAN port) bypassing the VPN, i.e. directly from the WAN port of the router.
Please explain in as much detail as possible, because I'm not strong in setting up a network.

Answer 1

@joseph2
register the route to the desired IP.
xxxx - ip address where you want to connect
yyyy gateway address of the provider (van)
route add xxxx/32 yyyy
NAT also needs to be enabled on the interface