NAT Extendable


Scenario:

Your NAT configuration seems to work fine but you need to create a couple of static entries so one of your internal hosts is reachable using multiple IP addresses. Let’s see what you can do!

Goal:

  • All IP addresses have been preconfigured for you.
  • Configure NAT on router NAT so router Jack is reachable as IP address 192.168.23.20 and 192.168.23.21 from router Tomb.

IOS:

c3640-jk9s-mz.124-16.bin

Topology:

NAT Extendable

Video Solution:

Configuration Files

You need to register to download the GNS3 topology file. (Registration is free!)

Once you are logged in you will find the configuration files right here.

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Written by René Molenaar - CCIE #41726

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About the Author: Rene Molenaar

René - CCIE #41726 is the creator of GNS3Vault.com where he shares CCNA, CCNP and CCIE R&S labs. He also blogs about networking on http://networklessons.com

1 Comment

  1. Jack :

    !
    interface FastEthernet0/0
    ip address 192.168.12.1 255.255.255.0

    !
    ip route 0.0.0.0 0.0.0.0 192.168.12.2
    ————————————-
    Tomb :

    !
    interface FastEthernet0/0
    ip address 192.168.23.3 255.255.255.0
    !
    ip route 0.0.0.0 0.0.0.0 192.168.23.2
    ————————————-
    NAT :
    !
    interface FastEthernet0/0
    ip address 192.168.12.2 255.255.255.0
    !
    interface FastEthernet1/0
    ip address 192.168.23.2 255.255.255.0

    !
    access-list 1 permit 192.168.12.0 0.0.0.255
    !
    ip nat inside source list 1 interface FastEthernet1/0 overload

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