S2S VPN tunnel appears to have been successfully created as I can see the gateway configured on the dashboard and can ping from on-premise to Azure. The issue is that I can't seem to communicate in the opposite direction.
My Azure VM has picked up all the relevant IP settings but I can't RDP or ping from there back to any on-premise servers (nor add my Azure VPN to the domain as can't communicate with my on-premise DC).
Where should I begin troubleshooting?
I have downloaded PSPING and tried to ping local DC, I have tried to ping local address of on-premise VPN device etc. All no luck.
Do I need t change anything on the Azure VM itself - add a static route? change the default gateway (it is currently 10.0.0.1 - first address in address space - should it be 10.0.0.36 - first address in gateway subnet?)