Automatic Detection Of The Nat Ip Address For Sip; Sip Remote-Party-Id - Patton electronics SmartNode Series Software Configuration Manual

SmartWare Software Configuration Guide
Example: Configuring a default server
The following example shows how to configure a default server, which acts as a loose-router.
node>enable
node#configure
node(cfg)#gateway sip sip
node(gw-sip)[sip]#service default
node(svc-sip)[service]#default server sipproxy.mycompany.com

Automatic detection of the NAT IP address for SIP

In some cases, it is possible to get SIP working through a NAT, if the user agent behind the NAT inserts the
public IP address of the NAT into the SIP contact and SDP headers instead of the devices own IP address. The
software is now able to automatically detect the address of the NAT in between and insert it into the SIP mes-
sages. This can be enabled using the contact-address nat-address command in the SIP service configuration
mode. The contact-address command was already available in previous software releases, but the IP-address
had to be specified explicitly there.
Note
This is not a general solution for all SIP nat-traversal problems. It only works
in some specific scenarios.
The complete syntax of the new command is as follows:
Mode: gateway sip <sip-gw-name> / service <sip-service-name>
[ name ] (svc-sip)[svc-name]# [no] contact-
address { <ip-address> | nat-address }

SIP Remote-Party-ID

This procedure enables support for the SIP Remote-Party-ID header according to draft-sip-privacy-01. If this
feature is enabled, the Remote-Party-ID SIP-Header will be used instead of the From-Header.
Mode: Interface SIP
Step
1
[ name ] (if-sip)# [no] remote-Party-ID
Gateway configuration task list
Command
Command
40 • SIP gateway configuration
Purpose
Define the SIP contact / SDP IP address.
Purpose
Enables or disables support for the SIP
Remote-Party-ID header
509