Hi Aaron, thanks for the reply.
Our configuration is that our public IP range is across both sites, controlled by BGP higher up the network which prioritises our primary DC and only sends to our secondary DC when the primary is unavailable. That is something out of my control unfortunately.
The HA pair I have configured currently at our primary DC works a treat and does everything I want it to do. I now need to replicate that at our secondary DC and have the two HA pairs talk. I am stuck with the 4 x 1600s and cannot purchase more kit but can purchase the GTM Modules for each if it will do the job I am after.
Please could you advise whether this scenario would work with the GTM module?
Thanks