D-Link DFL-860 Product Manual - Page 337
A NAT Example
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7.2. NAT Chapter 7. Address Translation 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 337
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