If migrating the site to Meraki, in order to leverage AutoVPN isn't an option, you could use an MX as a termination point of the Non-Meraki VPN, and route that, statically or dynamically, into the rest of your Meraki topology. It would require you to buy another MX and create a "Gateway" network, which function as the entry point between AutoVPN and Non-Meraki VPN.  ... View more