Wireless Joint

Hello!

I have a WG3526 (Firmware is "GoldenOrb_2019-03-06") accessing the internet via 4G LTE, and a Unifi USG behind it which is placed in a "DMZ" via port forwarding as described here.

The USG is serving as a VPN server (L2TP/IPSEC), but when I attempt to connect to the VPN (using the public IP address of the WG3526), it fails. I previously had the USG hooked up behind another Verizon 4G enabled (For simplicity, won't explain details) setup, and it worked fine.

I thought it might be firewall rules on the WG3526, so I disabled all the rules, and created a firewall rule to accept and forward any traffic to the USG, so the USG's firewall could address all the traffic. But still no joy. I do not know

Any ideas what I might be missing? Let me know if more info is required. Thanks in advance!

Jake

is this your only gateway for the USG? I'd check to make sure packets are going back out the same interface.

Yes, the WG3526 is the only gateway for the USG. I'll try to check that.

I feel that I am missing a setting within the WG3526's web admin dashboard. Is there a way to check a traffic log to see what the WG3526 is doing with my VPN connection attempt?

I tested this by using the following commands on the WG3526 and the USG:
No traffic whatsoever when I try to initiate a LT2P/IPSEC VPN connection to the USG from a device outside of the network.