Q: What Windows Firewall ports does Citrix XenDesktop use to communicate with its VMs?

A: If you enable the Windows Firewall on VMs inside your LAN, you'll need to ensure that the following ports and features are enabled to support Citrix XenDesktop's services:

  • For core functionality, enable ports for ICA, Workstation Agent, and CGP services: TCP ports 1494, 80, and 2598.
  • For user-to-user desktop shadowing, enable ports for Remote Assistance: TCP port 3389.
  • For real-time monitoring, enable the Remote Management feature.
  • For HDX RealTime for Audio, open UDP ports 16500 through 16509.
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