Firewall rules on Digi

It looks as though traffic is coming back to the Digi but almost seems as though it doesn’t know how to handle the traffic.

If the subnet of Site B is /24, what firewall rule should I allow on the Digi to allow this traffic to talk to the Digi site.

Thanks in advance.


confused here as if you are sending data over the vpn tunnel the return traffic should come through the tunnel back to the router and go out of the releated interface.

if you have added further firewall rules on the router you have to take into account which interfaces have the firewall on and the rules if they are specific to the interface or more general.