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D14049.05
February 2009
Grey Headline
(continued)
TANDBERG
VIDEO COMMUNICATIONS SERVER
ADMINISTRATOR GUIDE
Introduction
Getting started
Overview and
status
System
configuration
VCS
configuration
Zones and
neighbors
Call
processing
Bandwidth
control
Firewall
traversal
Appendices
Applications
Maintenance
VCS port reference
The VCS uses different IP ports and protocols for different services and functions, and many of these are configurable. The table below lists each of
these services and functions. For each, it shows the default port(s) and protocol used and whether these ports are used for inbound or outbound
communications. If the ports are configurable it shows the available range and how to configure them using the web interface or CLI.
The information in the table below shows all possible services and the generic defaults for each. The actual services and ports used on your
system will vary depending on its configuration, the option keys installed and features that have been enabled. A specific list of all the IP ports
in use on a particular VCS can be viewed via the
Maintenance > Tools > Port usage
pages. See the
Port usage
section for more information.
Overview
Service/function
Description
Default
Direction
Available range
Configurable via
SSH and FindMe
replication for clusters
Used for encrypted command line administration.
Also used to replicate FindMe data if the VCS is
part of a cluster with FindMe enabled.
22 TCP
inbound
not configurable
Telnet
Used for unencrypted command line
administration.
23 TCP
inbound
not configurable
HTTP
Used for unencrypted web administration.
80 TCP
inbound
not configurable
SNMP
Used for network management
161 UDP
inbound
not configurable
NTP
Used for updating the system time (and
important for H.235 security).
123 UDP
outbound
not configurable
Device Provisioning
Used as part of the Device Provisioning feature.
389 TCP
inbound
not configurable
HTTPS
Used for encrypted web administration. Also
used to replicate FindMe data if the VCS is part
of a cluster with FindMe enabled.
443 TCP
inbound
not configurable
Reserved for future use
636
inbound
not configurable
Gatekeeper discovery
Used for multicast gatekeeper discovery.
1718 UDP
inbound
not configurable
H323 registration
Clustering
Listens for inbound H.323 UDP registrations.
If the VCS is part of a cluster, this port is also
used for inbound and outbound communication
with peers, even if H.323 is disabled.
1719 UDP
inbound
outbound
1024 - 65534
VCS configuration > Protocols > H.323
xConfiguration H323 Gatekeeper Registration UDP Por
t
H.323 call signaling
Listens for H.323 call signaling.
1720 TCP
inbound
1024 - 65534
VCS configuration > Protocols > H.323
xConfiguration H323 Gatekeeper CallSignaling TCP Por
t
VCS ports
!
Two services or functions cannot share
the same port and protocol; if you
attempt to change an existing port or
range and it conflicts with another service, you
will get a warning message.