FAQ-What Are the Differences Between NAT Server and Destination NAT

Publication Date:  2015-07-01 Views:  218 Downloads:  0
Issue Description
What Are the Differences Between NAT Server and Destination NAT?
Solution
1. After NAT Server is configured, the firewall creates a server map table. However, after destination NAT is configured, no server map table is created.

2. NAT Server has higher priority than destination NAT. Upon receiving the first packet of a data flow, the firewall looks up the server map table based on NAT Server configuration. If no entry is matched, the firewall performs destination NAT processing.

3. If parameter no-reverse is not specified in NAT Server configuration, address translation can be implemented on both directions, whereas destination NAT translates addresses only in one direction.

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