I need to enable MRA on Expressway. On the Expressway-C Traversal zone configuration, the peer address is the Expressway-E FQDN. So do i need to create a A record for Expressway-E on the internal DNS to resolve the FQDN?
Also, is it required to add internal DNS IP on Expressway-E or public DNS is enough?
It depends on your topology. If you like us have the two interfaces on the E node connected to different DMZ networks you’d need to have a route to the internal network. Whereas if you have the internal network interface on E and the C connected to the same network as @Nithin Eluvathingal it’s not required.