OPNsense 24.10.2_6-amd64
FreeBSD 14.1-RELEASE-p7
OpenSSL 3.0.15
I've come to the conclusion that settings(5a) the manual here are being ignored : https://docs.opnsense.org/manual/how-tos/wireguard-client.html
I've tested this theory by checking system > routes > stats. all my tunnels are 1420 which is I guess the OPNsense default wireguard MTU? even when I have 1320 set under the normalization rule.
I then added a MTU setting to the Wireguard tunnel > instance > advance tab. restarted the tunnel even rebooted the firewall. and under routes > stats its still set to 1420.
I then found by opening the interface of the tunnel. and adding a number to MTU, and by not even restarting the tunnel. the routes > stats is show THAT number I inputted.
1. where is the correct location to change the MTU setting for Wireguard tunnels
2. is system>routes > stats really the correct location to show the currently active MTU setting for those instances?