Route all LAN traffic through the Mullvad VPN

[maxton]

I have set up the peers and instances, and the connection is established with a successful handshake. I added the gateway, which is showing as green and online, and I have also added the WireGuard interface.
i add also VIP (alias IP).

My WAN IP is 192.168.100.76 but show the next gateway 192.168.103.202.
My LAN IP is 11.0.0.2 .

i add outbound NAT as manual :
Interface : WG
Source : LAN net
Destination : all
Translation : WAN Addresses

LAN rule :
Interface : LAN
Source : LAN net
Destination : Any
Gateway : WG

Help me guys to route the trafic from LAN to VPN directly without using any client .
i did this on PFsense but on OPNsense API is different.

Thank you in advance .
i Followed Wireguard Mullvad Tutorials and no success .