Wireguad RW Clients not able to access Hosts outside the local-LAN interface ...

[k9sec]

Hello,

we are using a basic Wireguard-RW setup from the Knowledge Base.

The Problem: If we are connected via Wireguard we cannot access the Clients behind the Layer3 Switch and the Switch itself. It works well without Wireguard.

LAN-net: 172.10.10.254/24 (OPNSENSE)
Wireguard-net: 10.254.254.1/24
Layer-3-Switch: 172.10.10.1/24 and 192.168.1.1/24

My TEST's:

• Internet access OK!
• PING: LAN-net to 172.10.10.1 OK!
• PING: LAN-net to 192.168.1.1 OK!
• PING: Wireguard-net to 172.10.10.1, 172.10.10.200-202 NOT-OK!
• PING: Wireguard-net to 192.168.1.1, 192.168.1.100 OK!

Best regards.

[k9sec]

Solved my problem to set the right NAT Outbound rules.