05-16-2022 10:58 PM
I have a pair of VM300 gateways running 9.1.13 in Azure. I'm using a 'load balancer sandwich' approach to provide active active HA.
The public load balancer in front of the firewalls does a good job of delivering inbound traffic. However, routing to the internal destinations from the inside of the firewalls isnt ideal currently. I find i have to source nat the traffic to each firewall's internal interface if i want the replies to take the correct return path. This loses the original internet client's real IP. Without this source natting, even if the return traffic routes correctly to the firewall pair, it may not egress out the same gateway that it entered through. Making the traffic lose state.
Is there another way i can use two firewalls in active active HA and have the return traffic flow correctly?
