GTM Split-Brain DNS Setup
I'm trying to setup a F5/GTM/LTM server that is a virtual appliance. I have two data centers one for Production and one for DR. This would be a active/passive setup to some degree.
The ISP connection is tied to the firewall and the F5/GTM/LTM is behind the firewall in a DMZ with the Application in a different Email DMZ. I'm using exchange for my testing/starting setup. So owa.domain.com etc.
What do I have to setup so the F5 will publish Public IPs for External users and Private IPs for Internal users?
I was trying to follow this document: https://support.f5.com/kb/en-us/solutions/public/14000/400/sol14421.html
I setup two Topology Regions based on subnet with one called RFC1918-Internal that has all the standard private IP subnets in it and then another Catchall-External Region with Continent(all) on it.
Problem is the GTM Pools are created from LTM Virtual Servers with private IPs.
In order to setup a Topology Record that uses the Regions and then directs them to the right Pool I need some way of getting the Public IPs in there. I'm a little lost on what steps to take to make that happen.