Dual Firewalled Enviroments - 1 LB
Hello. We are looking for assistance with a simple way to route & load balance traffic in a setup that we haven't configured before. We have two separate firewalls for the environments behind our LTM/GTM load balancer and need to make sure that the following conditions are met:
1) We are attempting to load balance traffic sourcing from two separate firewalls and need to ensure that traffic is sent back through the proper firewall.
2) SNAT cannot be used in these environments as the developers need to see true source IPs.
3) The servers need to be able to connect to the correct firewall when they are the source.
4) We have no overlapping IP space, but have been using route domains to manage default gateways to ensure that traffic is routed correctly (which is working fine for IPv4). This will not be supported for IPv6 and it is necessary for the environments to be IPv6 compliant.
What would be the best manner to approach this?