Installation & Operation Manual 632 Document # LTRT-92224
Mediant 8000
40.12 NAT Translation Table
This table’s parameters define multiple NATs for SIP control and RTP media using
Static NAT rules. This table creates NAT rules for translating a 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).
40.12.1 Configuring the NAT Translation Table
This section describes how to configure the NAT Translation Table
To configure the NAT Translation Table:
1. Click
to access the Media Gateway status screen.
2. Select the desired SIP board.
3. In the Navigation Pane, select SIP
SIP General NAT Translation; the NAT
Translation list is displayed.
4. Use the
or buttons to add or remove entries.
5. Select a specific row and in the Configuration pane, click SIP NAT Translation;
the SIP NAT Translation screen is displayed.
6. Configure SIP NAT Translation parameters according to the table NAT
Translation Parameters' below.
7. Click the Maintenance icon
and select Unlock to activate the configuration.
Table 40-21: NAT Translation Parameters
Parameter
Name
Type
Provisioning
Type
Description
Subnet Name String
up to 255 chars
Online Subnet name as defined in the Boards
Network.
Global IP
address
String
up to 20 chars
Online Global IP address which is represented by
NAT.
Source Start
Port
Integer
1-65535
Online Optional port range (1-65535) of the IP
interface. If no ports are required, leave this
field blank.
Source End Port Integer
1-65535
Online Optional port range (1-65535) of the IP
interface. If no ports are required, leave this
field blank.
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