Nat - THOMSON SpeedTouch 605 User Manual

5.3.6 NAT

Overview
Interfaces
Mappings
E-DOC-CTC-20051017-0151 v1.0
The NAT menu consists of following sections:
Interfaces
Mappings
Templates
The Interface page allows you to enable/disable NAPT on a specific interface.
Proceed as follows to enable/disable an interface:
1
Select the interface that has to be enabled/disabled
2
Click Save All to make the settings permanent.
The Mappings page allows you to map one or more private IP addresses into one or
more public IP address on a specific interface.
Depending on your needs following fields are available:
Interface:
The name of the IP interface that needs to be NAT-ed.
Protocol:
The IP protocol on which address translation has to be applied. This allows the
SpeedTouch™ to link specific traffic (protocol dependent) to a chosen private
host.
Outside address:
The outside (typically public) IP address(es).
Inside address:
The inside (typically private) IP address(es).
Access list:
You can use the access list to define the address(es) that are allowed to use the
outbound connections.
Foreign address:
Foreign address is to define the address(es) that are allowed to use the
inbound connections.
Flags
Description
If you selected NAPT, you will have to specify a port range for the inside and
outside address.
Chapter 5
Expert Configuration
129