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RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 507
RealPresence Collaboration Server (RMX) Network
Port Usage
The following table summarizes the port numbers and their usage in the RealPresence Collaboration Server
(RMX) 1500/1800/2000/4000:
Server Network Port Usage Summary
Connection
Type
Port
Number
Protocol Description Configurable
HTTP 80 TCP Management between the
Collaboration Server and
Collaboration Server Web Client.
No
HTTPS 443 TCP Secured Management between the
Collaboration Server and
Collaboration Server Web Client.
No
DNS 53 UDP Domain name server. Can be disabled in the IP
Network Service.
DHCP 68 UDP Dynamic Host Configuration
Protocol.
Can be disabled in the IP
Network Service.
SSH 22 TCP Secured shell. It is the Collaboration
Server terminal.
SSH is not supported when the
Collaboration Server is in Ultra
Secure Mode. For more information
see Ultra Secure Mode.
No
NTP 123 UDP Network Time Protocol. Enables
access to a time server on the
network.
No
H.323 GK RAS 1719 UDP Gatekeeper RAS messages traffic. No
H.323 Q.931 1720 -
incoming;
49152-599
99 -
outgoing
TCP H.323 Q.931 call signaling.
Each outgoing call has a separate
port.
The port for each outgoing call is
allocated dynamically.
Yes - for outgoing calls
only.
It is configured in the
Fixed Ports section of the
IP service.
H.323 H.245 49152 -
59999
TCP H.245 control.
Each outgoing call has a separate
port.
The port for each outgoing call is
allocated dynamically. It can be
avoided by tunneling.
Yes - for outgoing calls
only.
It is configured in the
Fixed Ports section of the
IP service.