Using a Balance 310 with a VPN service such as expressvpn

Is there a way to utilize a vpn service such as expressvpn (or any other for that matter) on a Balance 310 so that all the connections (whether they go on on wan1, wan2, or wan3) are a vpn connection?

As I read the manual, I get the impression that it is talking about making a secure connection to the balance 310. I want to go the other way, the balance 310 making creating a vpn connection for the clients on the LAN side of Balance 310.

TIA

I believe you are referring to having the WAN connection establish a VPN tunnel to a remote network. We do support L2TP as a WAN connection method and this can be configured by using the pull-down on the Connection Method and selecting it. Thanks.