AudioControl VERSION 6.2 manual Parameter Description Static NAT Table NATTranslation

SIP Release Notes 1. What's New in Release 6.2

Parameter

Description

Static NAT Table

[NATTranslation]	This ini file table parameter defines multiple NATs for SIP control and
	RTP media using Static NAT Rules. This table creates NAT rules for
	translating source IP address per VoIP interface (SIP control and RTP
	media traffic) into NAT IP addresses. This allows, for example, the
	separation of VoIP traffic between different ISTP’s, and topology
	hiding (of internal IP addresses to the “public” network). Each IP
	interface (configured in the Multiple Interface table - InterfaceTable
	parameter) can be associated with a NAT rule in this table, translating
	the source IP address and port of the outgoing packet into the NAT
	address (IP address and port range).
	The format of this parameter is as follows:
	[ NATTranslation ]
	FORMAT NATTranslation_Index =
	NATTranslation_SourceIPInterfaceName,
	NATTranslation_TargetIPAddress, NATTranslation_SourceStartPort,
	NATTranslation_SourceEndPort, NATTranslation_TargetStartPort,
	NATTranslation_TargetEndPort;
	[ \NATTranslation ]
	Where:
	• SourceIPInterfaceName is the name of the IP interface as defined
	in the Multiple Interface table.
	• TargetIPAddress is the global IP address.
	• TargetStartPort and TargetEndPort is the port range (1-66535) of
	the global address.
	• SourceStartPort and SourceEndPort is the port range (1-66535)of
	the IP interface.
	Note:
	This table can include up to 32 indices.
	The device’s priority method for performing NAT is as follows (not
	relevant for SBC application):
	Uses an external STUN server (STUNServerPrimaryIP parameter)
	to assign a NAT address for all interfaces.
	Uses the StaticNATIP parameter to define one NAT IP address for
	all interfaces.
	Uses the NATTranslation parameter to define NAT per interface.
	If NAT is not configured (by any of the above-mentioned methods),
	the device sends the packet according to its IP address defined in
	the Multiple Interface table.
	If the StaticNATIP parameter is not configured and the
	WANIPAddress parameter is configured, then a NAT rule is
	automatically added to this table with an IP address defined for
	WANIPaddress and a port range of 0-65535.

Version 6.2 85 December 2010