NAT Exemption (Identity NAT)
Lesson 4 of 7
NAT Exemption (Identity NAT)
Introduction
In this lesson, we will configure NAT exemption on the ASA firewall. This is essential for allowing specific traffic, such as VPN connections or internal-to-internal communication, to bypass NAT translation. This ensures that certain packets retain their original source and destination IP addresses, which is crucial for proper routing and security in a network.
Quick Recap
In the previous lesson, we established a basic network topology with routers R1, R2, and R4, along with the ASA firewall. The key IP addresses and interfaces are as follows: