Wireguard - detecting tunnel in use

Back in the day my PPTP VPN allowed pinging of the client tunnel IP. This enabled me to have Homeseer do the pinging and send me a notification whenever the tunnel was in use.

So I am hoping I can do something similar with Wireguard and Home Assistant.

I have Wireguard server address as accessing the LAN on 192.168.1.xxx.

Unfortunately the ICMP ping integration will not show me the network when pinged from the 192.168.1.xxx

Bump. Does anyone know if it is possible to ping a 10.0.0.xxx network from a 192.168.1.xxx subnet.