Cisco Cisco Expressway Release Notes
Additional information
Cisco Expressway Software Release Notes (X8.2.1)
Page 14 of 18
Service/
function
function
Purpose
Destination port
(default)
(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.
manager, for example Cisco TMS.
80 TCP
System > External
manager
manager
NTP
System time updates.
123 UDP
System > Time
LDAP account
authentication
authentication
LDAP queries for login account
authentication.
authentication.
389 / 636 TCP
Users > LDAP
configuration
configuration
Incident reporting
Sending application failure details.
443 TCP
Maintenance >
Diagnostics > Incident
reporting > Configuration
Diagnostics > Incident
reporting > Configuration
Remote logging
Sending messages to the remote
syslog server.
syslog server.
514 UDP
6514 TCP
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.
server.
6001 UDP
Configuration > Zones
Traversal zone (SIP)
SIP connection to a traversal server.
7001 TCP
Configuration > Zones
TURN media relay
Range of ports available for TURN
media relay.
media relay.
24000 – 29999
UDP
UDP
Configuration > Traversal
> TURN
> TURN
(on Expressway-
E)
Table 6: Remote listening ports
Additional information
Software filenames
The Expressway software filenames are in the format s42700x<y_y_y> where x<y_y_y> represents the
software version (for example x8_1_0 represents X8.1).
software version (for example x8_1_0 represents X8.1).
Secure communications
For secure communications (HTTPS and SIP/TLS) we recommend that you replace the Expressway default
certificate with a certificate generated by a trusted certificate authority. See
certificate with a certificate generated by a trusted certificate authority. See
install certificates.
Restricting access to ISDN gateways (toll-fraud prevention)
Expressway-E users should take appropriate action to restrict unauthorized access to ISDN gateway
resources. See
resources. See
for information about how to do this.
Supported RFCs
The following RFCs are supported within the Expressway X8.2.1 release: