How do I allow Mobile VPN through our AT&T fiber gateway?

Hey all!

I am setting up Mobile VPN for our office, and I've hit a roadblock.

I entered our external, public IP address into the Firebox even though that is the IP for our fiber gateway. Obviously, I need to be able to allow the SSL connection in through our fiber gateway to our Firebox M200, but I'm not sure how to do that.

  1. I know our fiber gateway isn't a WatchGuard device, but I'm hoping there's someone here who might be able to tell me generally in a networking kind of way e.g. creating a rule to allow connections on port 443 to allow the connection.

  2. Do I need to define the VPN interface in a particular way?

Sorry for the noobish question. I've most done Office 365 administration and I've inherited Network Admin jobs that don't have a lot of supporting documentation.

Please let me know if there's any other info I can provide.




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