Cisco 7604 Configuration Guide - Page 341

Chapter 16 Configuring NAT NAT Examples See the "Configuring Dynamic NAT or PAT" section on page 16-26 for information about the other options. By default, this command exempts traffic from inside to outside. If you want traffic from outside to inside to bypass NAT, then add an additional nat command and enter outside to identify the NAT instance as outside NAT. You might want to use outside NAT exemption if you configure dynamic NAT for the outside interface and want to exempt other traffic. For example, to exempt an inside network when accessing any destination address, enter the following command: hostname(config)# access-list EXEMPT permit ip 10.1.2.0 255.255.255.0 any hostname(config)# nat (inside) 0 access-list EXEMPT To use dynamic outside NAT for a DMZ network, and exempt another DMZ network, enter the following command: hostname(config)# nat (dmz) 1 10.1.2.0 255.255.255.0 outside dns hostname(config)# global (inside) 1 10.1.1.45 hostname(config)# access-list EXEMPT permit ip 10.1.3.0 255.255.255.0 any hostname(config)# nat (dmz) 0 access-list EXEMPT To exempt an inside address when accessing two different destination addresses, enter the following commands: hostname(config)# access-list NET1 permit ip 10.1.2.0 255.255.255.0 209.165.201.0 255.255.255.224 hostname(config)# access-list NET1 permit ip 10.1.2.0 255.255.255.0 209.165.200.224 255.255.255.224 hostname(config)# nat (inside) 0 access-list NET1 NAT Examples This section describes typical scenarios that use NAT solutions, and it includes the following topics: • Overlapping Networks, page 16-38 • Redirecting Ports, page 16-39 OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 16-37