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Creating a NAT Qualified Prefix Table

  1. In the WebUI, click the Settings tab.

  2. In the left navigation pane, go to SIP > NAT Qualified Prefix Table.

  3. Click the Create NAT Qualified Prefix Table Entry ( ) icon at the top of the SIP NAT Qualified Prefix Tables page.
  4. In the Description field, enter a description for the table (this should be easily identified for configuring as part of the SIP Signaling Group).
  5. Click OK. The table is created.

    Figure : Create SIP NAT Qualified Prefix Table

Modifying a NAT Qualified Prefix Table

To modify an existing SIP NAT Qualified Prefix Table:

  1. Click the expand () Icon next to the entry you wish to modify.
  2. Edit the entry properties as required, see details below.

Creating a SIP NAT Qualified Prefix Entry

  1. In the left navigation pane, go to SIPNAT Qualified Prefix Table.
  2. Click the desired table.
  3. Click the Create NAT Qualified Prefix Table Entry ( ) icon at the top of the table.
  4. Configure the options. See details below for field definitions.

    Figure : Create SIP NAT Qualified Prefix Entry

SIP NAT Qualified Prefix Table Entry Field Definitions

Description

A user-friendly description of the prefix entry. This table description is populated as an option for Inbound NAT Traversal in the Signaling Group. Maximum length: 64 characters.

IP Address

IP address component of the NAT Qualified Prefix. This combines with the Netmask to match against the incoming endpoint's IP to determine if it is behind a NAT.

Netmask

 The Netmask component of the NAT Qualified Prefix. This combines with the IP Address to match against incoming endpoint's IP to determine if it is behind a NAT.