How to add a firewall rule based on a wireguard interface

[ns]

The firewall rule interface drop down menu allows to select the different physical interfaces, "IPSec", but does not allow to match on a wireguard interface.

From the shell I can see that there is a wg1 interface, so in theory opnsense could match on it.

My use case: I want to whitelist access to specific ports from the connected VPN (road warrior) clients to other devices opnsense is connected to.

[Patrick M. Hausen]

Go to Interfaces > Assignments and create an e.g. WG1 there. Then you can use the WireGuard interface in rules.