Firewall ports and communications between SCCM Current Branch Site servers, Site Systems, Domain Controllers and Clients are important when you perform SCCM CB architecture and design. In this post, I’ll share the spreadsheet that contain the details of SCCM Current Branch (CB) firewall port requirements. More details https://www.anoopcnair.com/sccm-cb-firewall-ports-communication-details-and-download-the-spreadsheet/
I've noticed the following issues with the "Dec 14, 2020" excel sheet version:
Here's the fixed entries for WOL and PeerCache:
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Source | Destination | UDP | TCP | Description | Direction -- | -- | -- | -- | -- | -- Client | Client (WOL) | 9/25536/ICMP (echo requests) | | WOL/WUP | Bidirection Site Server | Client (WOL) | 9 | | WOL | Unidirection Client | Client (Peer Cache) | 8004 | 8003 | broadcast/http OR https | Bidirection