Chapter 5
Expert Configuration
E-DOC-CTC-20050429-0104 v1.0
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5.3.6 NAT
Overview
The
NAT
menu consists of following sections:
Interfaces
Mappings
Templates
Interfaces
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.
Mappings
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.
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