
Configuring Network Address Translation
117356-A Rev. A 12-9
Enabling and Disabling NAT
To enable or disable NAT from an IP interface, proceed as follows:
Enabling NAT alone will not initiate mapping. You must also enable mapping.
NAT can perform either or both of the following types of mapping:
• Static address mapping
• Dynamic address mapping
Static mapping creates a one-to-one mapping of an unregistered local host address
to a global address. If you want to preserve a mapping entry, use static mapping.
Static address mapping does not time out during periods when there is no traffic
on the interface. The mapping remains configured until you disable it.
Dynamic mapping creates a temporary mapping of an unregistered address to a
global address. NAT software selects a global address from one or more global
address pools that you configure, and maps this address to the unregistered
address. If you enabled the Mapping Entry Timeout parameter, the mapping
remains configured for the time you specify in the Max Timeout parameter.
Otherwise, the mapping remains configured until you disable it.
For instructions on how to create and enable static mapping, r
efer to “Configuring
Static Mapping” on page 12-18.
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose Protocols.
The Protocols menu opens.
2. Choose IP. The IP menu opens.
3. Choose NAT. The NAT menu opens.
4. Choose Global. The NAT Base Group Record window
opens.
5. Set the Enable parameter. Click on Help
or see the parameter description on page
A-90.
6. Click on OK. Site Manager returns you to the
Configuration Manager window.
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