Lab 6-2: NAT Configuration - PAT

Summary

This lab is around how to setup Dynamic NAT. During this lab we created a NAT pool which the computers on the left can use to connect to the server on the right.

Network Layout

Commands

Router 2: Base Setup

enable
configure terminal
hostname Router2
interface fastethernet 0/0
ip address 20.0.0.1 255.0.0.0
no shutdown
exit
interface serial 0/0/0
ip address 30.0.0.2 255.0.0.0
no shutdown
exit

Router 1: Base Setup

enable
configure terminal
hostname Router1
interface fastethernet 0/0
ip address 192.168.0.1 255.255.255.0
no shutdown
exit
interface serial 0/0/0
ip address 30.0.0.1 255.0.0.0
clock rate 64000
bandwidth 64
no shutdown
exit

Router 2: Routing

ip route 192.168.0.0 255.255.255.0 30.0.0.1

Router 1: Routing

ip route 0.0.0.0 0.0.0.0 30.0.0.2

Router 1: Define Inside and Outside

interface fastEthernet 0/0
ip nat inside
exit
interface serial 0/0/0
ip nat outside
exit

Create Pools:

ip nat pool test 30.0.0.120 30.0.0.120 netmask 255.0.0.0

Create Access-list: Defines which internal IP's can use the Public Pool

access-list 1 permit 192.168.0.0 0.0.0.255

Assign Pool and Access Rule:

ip nat inside source list 1 pool test overload

Show NAT translations

show ip nat translations