- How To Use This Guide
- Firewall Configuration
- Default Port Ranges
- Basic Networking Connections
- Clustering Connections
- Provisioning Registrations Authentication and Calls
- Mobile and Remote Access
- Jabber Guest Services
- Microsoft Interoperability Using Gateway Expressway
- IM and Presence Federation with Microsoft Clients
- Cisco Meeting Server
- XMPP Federation
- Serviceability
- ACME Certificate Management
Default Port Ranges
The following defaults are used throughout this document. Default port ranges may occasionally change (if unavoidable) as new features are developed. Our documents list the current default ports for the given version number.
![]() Note |
In some cases throughout this document we list port ranges used by third party infrastructure. These are default values and we cannot guarantee that these are correct for your environment. We recommend you follow the supplier's documentation to configure those connections. |
Protocol |
Purpose |
Current Range |
Details |
||
---|---|---|---|---|---|
TCP |
Ephemeral ports |
1024-65535 |
Outbound HTTP/S, LDAP |
||
UDP |
Ephemeral ports |
1024-65535 |
DNS, outbound TURN requests |
||
TCP |
Ephemeral ports |
30000-35999 |
|||
UDP |
Ephemeral ports |
30000-35999 |
|||
TCP |
Outbound SIP |
25000-29999 |
|||
UDP&TCP |
Inbound TURN requests on Small/Medium Expressway-E |
3478 |
On Expressway-E only. Configurable to 443 or any port >= 1024 |
||
UDP&TCP |
Inbound TURN requests on Large Expressway-E |
3478-3483 |
On Large Expressway-E only. Configurable to a six port range with first port >=1024. Configurable to a single port, if port multiplexing is enabled. For more information on TURN port multiplexing, see the Expressway Administrator Guide |
||
TCP |
Inbound TCP TURN request on Cisco Expressway-E |
443 |
On Expressway-E only if TCP 443 TURN service is enabled. |
||
UDP |
TURN relays |
24000-29999 |
On Expressway-E only. |
||
UDP |
RTP/RTCP media |
36000-59999 |
The range is configurable within the default bounds. E.g., 37000-38200, but not 35000-36200. On S/M Expressway, the first two ports can be used for multiplexed media if you do not use default/custom ports. On L Expressway, the first twelve ports of the range are used for multiplexed media. You cannot customize that subrange. |
||
UDP |
Multiplexed media on Small/Medium Expressway-E systems |
2776/2777 OR 36000/36001 |
2776/2777 is older pair but kept as default by the ability to customize when the new default range was introduced with S/M system options. Custom pair is defined on .On Expressway-E only.
|
||
UDP |
Multiplexed media on Large Expressway-E systems |
36000-36011 |
New range introduced with Large system option. This range is always the first twelve ports of the RTP/RTCP media range, so it will be different if you configure a different media range. On Expressway-E Large OVAs or large scale appliances only.
|
||
TCP |
SIP traversal |
7001 |
Configurable. SIP listening port on the first Expressway-E traversal server zone. Subsequent traversal server zones will use incremental port numbers, eg. 7002, by default. |
||
UDP |
H.323 traversal |
6001 |
Configurable. H.323 listening port on the first Expressway-E traversal server zone. Subsequent traversal server zones will use incremental port numbers, eg. 6002, by default. |