We attempted to put our new UTM in service over the weekend and while most things worked, we had to roll back because two different VPNs failed.
The one I'm looking help with on this thread is a PPTP VPN. Traffic passes through the UTM to an internal IP. The VPN is actually terminated on that box. Other than the firewall, nothing changed on the customer's end or anywhere else. It works with our Juniper; it doesn't with the UTM.
My setup
1) Outside and inside interfaces configured.
2) Outside interface set to watch the mapped (external) IP.
3) SNAT rule natting traffic from (Internal IP) to any, Source translation: (External IP), No automatic firewall rule.
4) DNAT rules allowing PPTP, GRE and AUTH from Any to Internet [Outside IP](Address) Destination translation: (Internal IP), Automatic firewall rules on all 3.
5) Firewall policy allowing all traffic from (Internal IP) to any.
Any ideas what I'm missing?
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