I have a series of new machines that are internet facing (have IP's that are accessible via the 'net) and it has internal facing interfaces. I need to be able to communicate back to the internal network to a specific server which processes monitoring and e-mail traffic. I've been told that I should use the inside interface to pass back traffic so I checked it out today.
There is a route in the routetable that shows the path back inside and I am able to ping and traceroute the specific server so icmp is up however I'm unable to access ssh (not a big deal), e-mail or the monitoring port.
This info tells me I do have access (even if only icmp) however I don't have the necessary access for monitoring.
Anything I might have missed in my testing? More routing type info.
Carl