The Cisco ASA and Cisco ASA-X firewalls provides nearly infinite flexibility in so far as their NAT configuration. From the modularity of using objects, to the simplicity of configuring Auto NAT, to the granularity of Manual NAT, to the precision of NAT precedence — the ASA can do it all.
This article covers each of these concepts in detail, explaining what they mean, when to use them, and how to apply them. If you read it from start to finish, and were able to follow with the examples and illustrations, then you can decidedly consider yourself an address translation expert on the Cisco ASA platform.
Part 1 – NAT Syntax
Objects - Real and Mapped - Auto NAT - Manual NAT
Part 2 – NAT Configuration Examples
Static NAT - Static PAT - Dynamic PAT - Dynamic NAT
Part 3 – Advanced NAT
Policy NAT - Twice NAT - NAT Precedence - Identity NAT
Here is the complete guide: https://www.practicalnetworking.net/stand-alone/cisco-asa-nat/
April 16, 2018 By