How to route traffic through a wg tunnel created in Network Manager?

Question

linux

There is a server with working WireGuard. Connected my smartphone, everything works fine!

Now I'm trying to set up a connection on Kubuntu 20.04. Added a tunnel via nmcli . But when you turn on the wg-tunnel, the Internet does not work. Perhaps the problem is that nftables is installed? It's set up on the archa wiki . Understanding of nftables is still low, tell me what rule to add to make the connection through WireGuard work?

Answer 1

You need to add the following rules:
1. Allow FORWARD packets from the wireguard network
2. Add a SNAT\Masquerade rule for the wireguard network.
Since low understanding of nftables, replace with iptables.