A site that I am visiting has three Exchange server
Two at their corporate office and one at a remote office (this last one is a new setup)
Their two at the corporate office cooperate within a DAG.
The client is looking to get the DAG connected up with the new Exchange box at the remote office
They connect to their remote office with a point-to-point tunnel across a pair of Cisco ASAs
The DAG traffic between their Exchange systems would go along this tunnel.
Reviewing Exchange Server Pro (port diagram posting) it appears the following ports are required for all three to communicate with each other across their DAG:
tcp/135 - RPC
tcp/64327 - Log Shipping
udp/3343 - Node Communication
Looking just at the DAG communication - not any of the other ports which are required - is this correct?
The posting as well makes reference to a tcp dynamic range for DAG communication between the two
What is this dynamic range for Exchange 2010?