Service/
function
Purpose
Destination port
(default)
Configurable via
DNS
Requests to a DNS server.
53 UDP
System > DNS
External manager
Outbound connection to an external
manager, for example Cisco TMS.
80 TCP
System > External
manager
NTP
System time updates.
123 UDP
System > Time
LDAP account
authentication
LDAP queries for login account
authentication.
389 / 636 TCP
Users > LDAP
configuration
TMS Provisioning
Extension
Connection to Cisco TMSPE services. 443 TCP
System > TMS
Provisioning Extension
services
Incident reporting
Sending application failure details.
443 TCP
Maintenance >
Diagnostics > Incident
reporting > Configuration
Third-party FindMe /
User Policy server
Outbound connection to a third-party
FindMe / User Policy server.
443 TCP
Applications > FindMe
Remote logging
Sending messages to the remote
syslog server.
514 UDP
6514 TCP
Maintenance > Logging
Neighbors (H.323)
H.323 connection to a neighbor zone.
1710 UDP
Configuration > Zones
Neighbors (SIP)
SIP connection to a neighbor zone.
5060 / 5061 TCP
Configuration > Zones
Traversal zone (H.323)
H.323 connection to a traversal
server.
6001 UDP
Configuration > Zones
Traversal zone (SIP)
SIP connection to a traversal server.
7001 TCP
Configuration > Zones
Endpoint (H.323)
Endpoint listening port
1720 TCP
Defined by endpoint’s
registration
Endpoint (SIP)
Endpoint listening port
5060 / 5061
TCP / UDP
Defined by endpoint’s
registration
TURN media relay
Range of ports available for TURN
media relay.
24000 – 29999
UDP **
Configuration > Traversal
> TURN
(on VCS
Expressway)
Table 8: Remote listening ports
** The default TURN relay media port range of 24000 – 29999 applies to new installations of X8.1 or later. The
previous default range of 60000 – 61799 still applies to earlier releases that have upgraded to X8.1.
Cisco VCS Administrator Guide (X8.1.1)
Page 394 of 507
Reference material
Port reference