Dynamic Nat And Pat Implementation - Cisco 7604 Configuration Manual

Chapter 16 Configuring NAT
Using Dynamic NAT and PAT

Dynamic NAT and PAT Implementation

For dynamic NAT and PAT, you first configure a nat command identifying the real addresses on a given
interface that you want to translate. Then you configure a separate global command to specify the
mapped addresses when exiting another interface (in the case of PAT, this is one address). Each nat
command matches a global command by comparing the NAT ID, a number that you assign to each
command. (See Figure 16-14.)
Figure 16-14 nat and global ID Matching
Web Server:
www.cisco.com
Outside
Global 1: 209.165.201.3-
209.165.201.10
Translation
10.1.2.27 209.165.201.3
NAT 1: 10.1.2.0/24
Inside
10.1.2.27
See the following commands for this example:
hostname(config)# nat (inside) 1 10.1.2.0 255.255.255.0
hostname(config)# global (outside) 1 209.165.201.3-209.165.201.10
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