Setting and confirming firewall rules in our environment and wanted to confirm that the client DOES or DOES NOT need ports opened to the CAS WSUS server.

I understand that they get catalog from WSUS but wasn't sure if they received everything needed from the Primary Site SUP and WSUS.

I know... why CAS.  We set up before there was a option to install CAS after the fact.

thanks in a

A client will only talk to the SUP at the primary that it is assigned to.

Thank you Torsten!  I figured either you or Jason S. would have responded within seconds  :)