We help IT Professionals succeed at work.

We've partnered with Certified Experts, Carl Webster and Richard Faulkner, to bring you a podcast all about Citrix Workspace, moving to the cloud, and analytics & intelligence. Episode 2 coming soon!Listen Now


Separate NAT device in VMWare 6.5

sibliege asked
Medium Priority
Last Modified: 2012-05-06
Hi all!
I have 3 VM that are running on the same host using VMWare Workstation 6.5

All of these VM need NAT interface because I use Port Forwarding...
Each VM have it's own tcp port for separate dedicated application (web, tse, other tse)

All work fine except that the 3 VM are on the same Subnet meaning that can "see" each other...
So I wonder if it's possible to create a second nat interface, thus I can put 2VM on the same subnet and the ,other on a dedicated.

I have seen that this is pretty easy to create a new interface however it seems that it is only possible to bind NAT to only one interface.

Does anyone know something about that?

Watch Question

za_mkhIT Manager

Can you provide a simple diagram of what you are trying to achieve? I ask this because your post doesn't really clarify the traffic direction between your various VM's, etc


Sure, here it is....
IT Manager
Ah, ok.
So VM3 which needs to be NATTED but needs to be seperated from VM1 + 2.
The only way I can see you achieving this using VMWare workstation is to do the following
1) Move VM3 to it's own VMNet e.g VMNet4
2) Create a new VM (VM4) using Vyatta (www.http://www.vyatta.com/downloads/index.php)
When configuring VM4 you assign it two network cards so that it joined to both VMNet8 and VMNet4. Then you configure the vyatta network appliance to NAT data destined for VM3 . So for VM3 there will sort of be double NATTING in a way. But it will achieve your goal of isolating VM3 from the other 2 guest VMs.
The Traffic flow in my mind would be as follows:-
External -> Vyatta External Interface (connected to VMNet8) -> Vyatta Internal Internal Interface (connected to VMNet4) ->VM3

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
za_mkhIT Manager

The network schematic would be something like you see in the following link:
Obviously it will apply for VMWare WorkStation 2.


Ok I will try, so, now way to do this natively in VMWareN
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.