Utilizing NAT to isolate a number of community with the identical IP house

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Utilizing NAT to isolate a number of community with the identical IP house


I am attempting to create a community structure that permits a number of an identical IP house to be remoted with one and the opposite. To take action, I am considering that NAT might do that with the next topology.

Utilizing NAT to isolate a number of community with the identical IP house

Earlier than going any additional, I attempted to simulate what I am trying to do in Cisco Packet tracer. I am not sure to {hardware} but, however for the simulation I used Cisco’s 1941 router:

Simulation schematic

After all, I am not sure to that particular {hardware}, however I wanted to begin someplace.

listed here are the config I did of the router 1 (however does not work). Router 0 is similar however as an alternative of 10.0.2.x -> 10.0.1.x:

!
model 15.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router
!
ip cef
no ipv6 cef
!
license udi pid CISCO1941/K9 sn FTX15241OHK-
!
!
spanning-tree mode pvst
!
!
interface GigabitEthernet0/0
 ip deal with 10.0.2.1 255.255.0.0
 ip nat outdoors
 duplex auto
 pace auto
!
interface GigabitEthernet0/1
 ip deal with 10.10.10.1 255.255.255.0
 ip nat inside
 duplex auto
 pace auto
!
interface Vlan1
 no ip deal with
 shutdown
!
router rip
!
ip nat outdoors supply static 10.0.2.2 10.10.10.2
ip nat outdoors supply static 10.0.2.3 10.10.10.3  
ip nat outdoors supply static 10.0.2.4 10.10.10.4
ip nat outdoors supply static 10.0.2.5 10.10.10.5
(...)
ip classless
!
ip flow-export model 9
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!

Some factors that you’re most likely questioning:

  • Sure, the IP house must be the identical on the subnetwork. I do know it
    is not perfect nor normal, however I actually cannot change the IP addresses
    in these networks.
  • You may discover that this community by no means attain an
    ISP. It’s by design a really native and inside community. It additionally want
    to be this manner.
  • The IP house of the skin part (10.0.0.1 / 16 subnet) will be modified. I selected it arbitrarily.
  • My finish aim can be to have between 5 and 10 routers to isolate 10 networks. They’re all very low visitors and will probably be restricted to about 40 gadgets every. In case you are conscious of a cost-effective {hardware} that would do that, please present recommendations!

Listed here are my questions:

  1. Why/How can my simulation work? What am I lacking?
  2. Can this work? Do you could have any advices or examples that I can consult with?
  3. Do you could have any advice on {hardware} or topologies.

Thanks upfront

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