Lab 6‐1 NAT Configuration ‐ Static NAT - devinziegler/Devin-Tech-Journal GitHub Wiki

Router 1 Configuration

  1. Set IP addresses for internal network and turn on the interface
int fa0/<#>
ip address <ip_address> <netmask>
no shut
  1. Set up External Interface
int serial 0/0/<#>
ip address <ip_address> <netmask>
no shut

Router 0 Configuration

  1. Set up internal interface
int fa0/<#>
ip address <ip_address> <netmask>
no shut
  1. Set up external interface to connect to router1 
int serial0/0/<#>
ip address <external_ip_address> <netmask>
clock rate 64000
bandwidth 64
no shut

Configure routing

  1. On R1, start by routing the external address from R0 to the external address on R1:
ip route <R0_external_network_address> <R0_netmask> <R1_internal_network_address>
  1. On R0, route the the IP to NAT over the external network on R0:
ip route <network_to_NAT> <netmask> <external_network_address>

Configure Inside and Outside NAT

  1. On R1, set the inside network
int fa0/<#>
ip nat inside
  1. Set the external network
int serial 0/0/<#>
ip nat outside
  1. Create the Static Rule on R1 (specify internal IP to NAT as well as NAT IP)
ip nat inside source static <internal_client_address> <natted_address>
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