RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide
16-42 Polycom, Inc.
RealPresence Collaboration Server (RMX) Network Port Usage

The following table summarizes the port numbers and their usage in the RealPresence

Collaboration Server (RMX) 1500/2000/4000:

Table 16-23 Collaboration Server Network Port Usage Summary
Connection
Type
Port
Number Protocol Description Configurable
HTTP 80 TCP Management between the
Collaboration Server and RP
Collaboration Server Web
Client.
No
HTTPS 443 TCP Secured Management
between the Collaboration
Server and RP 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” on page 23-1.
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-
59999 -
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.