Cisco Cisco Expressway メンテナンスマニュアル
Service/
function
function
Purpose
Expressway port
(default)
(default)
Direction Configurable via
H.323
registration
Clustering
registration
Clustering
Listens for inbound H.323 UDP
registrations. If the Expressway is part
of a cluster, this port is used for
inbound and outbound communication
with peers, even if H.323 is disabled.
registrations. If the Expressway is part
of a cluster, this port is used for
inbound and outbound communication
with peers, even if H.323 is disabled.
1719 UDP
inbound
outbound
outbound
Configuration >
Protocols > H.323
Protocols > H.323
H.323 call
signaling
signaling
Listens for H.323 call signaling.
1720 TCP
inbound
Configuration >
Protocols > H.323
Protocols > H.323
Assent call
signaling
signaling
Assent signaling on the Expressway-E.
2776 TCP
inbound
Configuration >
Traversal > Ports
Traversal > Ports
H.460.18 call
signaling
signaling
H.460.18 signaling on the Expressway-
E.
E.
2777 TCP
inbound
Configuration >
Traversal > Ports
Traversal > Ports
Traversal
server media
demultiplexing
RTP/RTCP
server media
demultiplexing
RTP/RTCP
Optionally used on the Expressway-E
for demultiplexing RTP/RTCP media on
Small/Medium systems only.
for demultiplexing RTP/RTCP media on
Small/Medium systems only.
2776/2777 UDP
inbound
outbound
outbound
Configuration >
Traversal > Ports
Traversal > Ports
TURN
services
services
Listening port for TURN relay requests
on Expressway-E.
on Expressway-E.
3478 UDP *
inbound
Configuration >
Traversal > TURN
Traversal > TURN
System
database
database
Encrypted administration connector to
the Expressway system database.
the Expressway system database.
4444 TCP
inbound
not configurable
SIP UDP
Listens for incoming SIP UDP calls.
5060 UDP
inbound
outbound
outbound
Configuration >
Protocols > SIP
Protocols > SIP
SIP TCP
Listens for incoming SIP TCP calls.
5060 TCP
inbound
Configuration >
Protocols > SIP
Protocols > SIP
SIP TLS
Listens for incoming SIP TLS calls.
5061 TCP
inbound
Configuration >
Protocols > SIP
Protocols > SIP
B2BUA
Internal ports used by the B2BUA.
Traffic sent to these ports is blocked
automatically by the Expressway's non-
configurable firewall rules.
Traffic sent to these ports is blocked
automatically by the Expressway's non-
configurable firewall rules.
5071, 5073 TCP
inbound
not configurable
Traversal
server zone
H.323 Port
server zone
H.323 Port
Port on the Expressway-E used for
H.323 firewall traversal from a
particular traversal client.
H.323 firewall traversal from a
particular traversal client.
6001 UDP,
increments by 1 for
each new zone
increments by 1 for
each new zone
inbound
Configuration >
Zones
Zones
Traversal
server zone
SIP Port
server zone
SIP Port
Port on the Expressway-E used for SIP
firewall traversal from a particular
traversal client.
firewall traversal from a particular
traversal client.
7001 TCP,
increments by 1 for
each new zone
increments by 1 for
each new zone
inbound
Configuration >
Zones
Zones
H.225 and
H.245 call
signaling port
range
H.245 call
signaling port
range
Range of ports used for call signaling
after a call is established.
after a call is established.
15000 - 19999 TCP
inbound
outbound
outbound
Configuration >
Protocols > H.323
Protocols > H.323
SIP TCP
outbound port
range
outbound port
range
Range of ports used by outbound
TCP/TLS SIP connections to a remote
SIP device.
TCP/TLS SIP connections to a remote
SIP device.
25000 - 29999 TCP
outbound
Configuration >
Protocols > SIP
Protocols > SIP
Table 7: Local inbound/outbound ports (continued)
Cisco Expressway Administrator Guide (X8.5.1)
Page 301 of 399
Reference material
Port reference