Nat And Stun Parameters - AudioCodes Mediant 3000 User Manual

SIP User's Manual
Parameter
Web: Gold QoS
EMS: Gold Service Class Diff Serv
[GoldServiceClassDiffServ]
Web: Bronze QoS
EMS: Bronze Service Class Diff Serv
[BronzeServiceClassDiffServ]
A.1.5

NAT and STUN Parameters

The Network Address Translation (NAT) and Simple Traversal of UDP through NAT
(STUN) parameters are described in the table below.
Parameter
STUN Parameters
Web: Enable STUN
EMS: STUN Enable
[EnableSTUN]
Web: STUN Server Primary IP
EMS: Primary Server IP
[STUNServerPrimaryIP]
Web: STUN Server Secondary
IP
EMS: Secondary Server IP
[STUNServerSecondaryIP]
[STUNServerDomainName]
Version 6.4
Defines the DiffServ value for the Gold CoS content
(Streaming applications).
The valid range is 0 to 63. The default value is 26.
Defines the DiffServ value for the Bronze CoS
content (OAMP applications).
The valid range is 0 to 63. The default value is 10.
Table A-5: NAT and STUN Parameters
Enables Simple Traversal of UDP through NATs (STUN).

[0] Disable (default)

[1] Enable
When enabled, the device functions as a STUN client and
communicates with a STUN server located in the public Internet.
STUN is used to discover whether the device is located behind a
NAT and the type of NAT. In addition, it is used to determine the IP
addresses and port numbers that the NAT assigns to outgoing
signaling messages (using SIP) and media streams (using RTP,
RTCP and T.38). STUN works with many existing NAT types and
does not require any special behavior from them. For more
information on STUN, see STUN on page 138.
Notes:

For this parameter to take effect, a device reset is required.

For defining the STUN server domain name, use the parameter
STUNServerDomainName.
Defines the IP address of the primary STUN server.
The valid range is the legal IP addresses. The default value is
0.0.0.0.
Note: For this parameter to take effect, a device reset is required.
Defines the IP address of the secondary STUN server.
The valid range is the legal IP addresses. The default value is
0.0.0.0.
Note: For this parameter to take effect, a device reset is required.
Defines the domain name for the Simple Traversal of User
Datagram Protocol (STUN) server's address (used for retrieving all
STUN servers with an SRV query). The STUN client can perform the
required SRV query to resolve this domain name to an IP address
and port, sort the server list, and use the servers according to the
sorted list.
555
32. Viewing Syslog Messages
Description
Description
November 2011