Source

Destination

Protocols

Ports

Description

Parallels Client

HALB

TCP

80, 443, 3389

TCP 3389 if RDP load balancing is enabled.

UDP

80, 443

If RDP-UDP is used.

TCP, UDP

20009

Client Manager, shadowing via FW.

RAS Secure Client Gateway (Normal and Forwarding modes)

TCP

80, 443, 3389

TCP 3389 if RDP load balancing is enabled.

UDP

80, 443

If RDP-UDP is used.

TCP, UDP

20009

Client Manager, shadowing via FW only for Normal mode. Since RAS v16, forwarding gateways don't support client management.

UDP

20000

Gateway lookup broadcast.

RDP Session

TCP, UDP

3389

Connections in Direct mode 3389 is used. RDP connection is always encrypted.