I might be over-thinking this, but I can't find a straight answer regarding port requirements between the lync clients and the front end server. Bi-directional 5061 I assume is a given, but outside of that I'm stumped.
I searched the forums and it's asked often, but seems to always end up with a port list, which makes sense between the following:
FE Server <-> Edge Server Internal NIC
Edge Server External NIC <-> Public (Internet)
In our environment we have a firewall between the clients and the FE server.
We are doing a side-by-side migration between )CS 2007R2 and Lync 2013. Simple setup with basic IM and Presence (desktop sharing etc), (but no phone integration). The external server is strictly for federation with 1 partner, not External user access.
Other than 5061, do I need to open up any other ports (TCP or UDP) one way or bi-directionally, between our client subnets and the Front End Server?
Maybe UDP3478, TCP443 and TCP5062 open one way from the client subnets to the Edge Server internal interface as well?
DQ