Routing Site-to-Site IPSec VPN traffic out OpenVPN connection



  • We currently use SG-2220's to connect to OpenVPN tunnels in different regions for testing our website in those locations.
    We want a remote site to connect via IPSec and send all internet bound traffic thru the OpenVPN tunnel.

    I found this guide: Routing Internet traffic thru a site-to-site ipsec vpn
    Can I just change those NAT rules at the end to use the OpenVPN interface instead of WAN? Will that work?
    Seems like a route statement will need to be configured somewhere...


  • LAYER 8 Netgate

    Depends on how the OpenVPN is set up.

    If you are allowing the VPN to pull a default route, all you should need is outbound NAT

    If you are not allowing the OpenVPN to pull a default route, you will need to policy route the IPsec traffic using rules on the IPsec tab to the OpenVPN gateway and enable Outbound NAT.



  • Excellent, "Don't pull routes" is NOT checked, so I think we'll be good to go.

    Thank you!


Log in to reply