Cisco Cisco Expressway Release Notes
Additional information
Unified Communications Cisco Expressway Series Software Release Notes (X8.5)
Page 18 of 23
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 7: 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_5_0 represents X8.5).
software version (for example x8_5_0 represents X8.5).
Secure communications
As of version X8.1, new installations of Expressway ship with a default server certiificate and trusted CA list.
For secure communications (HTTPS and SIP/TLS), we strongly recommend that you replace the
Expressway default certificate with a certificate generated by a trusted certificate authority. See
Expressway default certificate with a certificate generated by a trusted certificate authority. See
signing requests and install certificates.
When you are upgrading your software, the upgrade does not generally affect your existing server certificate
or trust store: these are retained after upgrade. However, we may occasionally recommend applying a new
certificate or modifying your trusted CA list to improve security on your Expressway.
or trust store: these are retained after upgrade. However, we may occasionally recommend applying a new
certificate or modifying your trusted CA list to improve security on your Expressway.