Parallels Client

Source	Destination	Protocols	Ports	Description
Parallels Client	HALB	TCP, UDP TCP, UDP	80, 443 20009	Management and user session connections. Device Manager shadowing via Firewall (indirect network connection).
	RAS Secure Gateway Forwarding mode	TCP, UDP TCP, UDP UDP	80, 443 3389 20000	Management and user session connections. Optional - Used for user session if RDP load balancing is enabled (Standard RDP). Secure Gateway lookup broadcast.
	RAS Secure Gateway Normal mode	TCP, UDP TCP, UDP TCP, UDP UDP	80, 443, 3389 20009 20000	Management and user session connections. Optional - Used for user session if RDP load balancing is enabled (Standard RDP). Device Manager shadowing via Firewall (indirect network connection) Secure Gateway Lookup Broadcast
	Session host (VDI, RDS, RemotePC)	TCP, UDP	3389	Used for user session connections in Direct Mode only. RDP connection is always encrypted.
	Azure Virtual Desktop Services	TCP UDP	443 3390	Azure Virtual Desktop Gateway connection Used for user session connections in ShortPath mode only.
	Microsoft site	TCP	443	Download Microsoft Remote Desktop (MSRDC) client
	Parallels site	TCP	80, 443	Check for updates and download Parallels Client