@TCarson This is not possible directly i.e., this not a supported scenario. However, you may be able to implement a workaround for this using a Firewall etc., which can NAT this traffic and push it to the internet. However, this is not a supported scenario by Azure.
Routing outbound internet traffic coming from a Site to Site vpn connection through Azure public IP
TCarson
1
Reputation point
I am wondering if it is possible to route internet traffic (outbound) coming from an On Premise subnet connected via a Site to Site vpn connection through an Azure Public IP.
It appears there is an option for 'Forced Tunneling' which will force outbound traffic back through the On Premise network, but what I'd like to have happen is for the traffic to exit the Azure Virtual network through an Azure public IP.