Currently all of our load balance services either run at L4 or in non-transparent mode but we now have a requirement to configure an SMTP service as L7 transparent due to the source IP address.
The first issue we have is that the service doesn't work when the default gateway on the server is set to the shared IP address of the HA pair. However it does work when using either of the partner IP addresses.
The second issue is that when the default gateway is set we're unable to RDP to the servers from a remote subnet.
The loadbalancers have a default gateway of 192.168.20.1 and all our services run on the 192.168.20.0/24 range.
