11.3 Configuring NAT
11.3.4 TCP load distribution configuration

At a minimum, configure IP routing and appropriate IP addresses on the router. To configure TCP load distribution, perform the following steps:

  1. Define a standard IP access list with a permit statement for the virtual host.

  2. Define an IP NAT pool for the real hosts, ensuring that it is a rotary type pool using the ip nat pool name start-ip end-ip {netmask netmask | prefix-length prefix-length} type rotary command.

  3. Define a mapping between the access list and the real host pool by using the ip nat inside destination list access-list-number pool name command.

  4. Enable NAT on the appropriate interface, as previously discussed, by using the ip nat {inside | outside} command.

Example shows an example of TCP load distribution configuration. The corresponding topology is shown in Figure .
Lab Activity    
  Configure a Frame Relay connection between our WebHeads router in Orlando and the ISP's router in Houston, and configure TCP Load Distribution on the WebHeads router.