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195.55.66.77:80 => 195.11.22.33:32789
4. NetDefendOS receives the packet and compares it to its list of open connections. Once it finds
the connection in question, it restores the original address and forwards the packet.
195.55.66.77:80 => 192.168.1.5:1038
5. The original sender now receives the response.
The sequence of these events is illustrated further in the diagram below.
Figure 7.2. A NAT Example
Example 7.1. Adding a NAT Rule
To add a NAT rule that will perform address translation for all HTTP traffic originating from the internal network,
follow the steps outlined below:
Command-Line Interface
First, change the current category to be the main IP rule set:
gw-world:/> cc IPRuleSet main
Now, create the IP rule:
gw-world:/main> add IPRule Action=NAT Service=http
SourceInterface=lan
SourceNetwork=lannet
DestinationInterface=any
DestinationNetwork=all-nets
Name=NAT_HTTP
NATAction=UseInterfaceAddress
Return to the top level:
gw-world:/main> cc
7.2. NAT Chapter 7. Address Translation
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