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New Member

Multiple NAT pools


I am trying to figure out how NAT works with multiple NAT pools overload.

I have a major network my current NAT is for the subnet with overload however I want to add another NAT Pool that will cover the entire network my question is if a packet comes from network which NAT pool will do the NATing the more specifc one (the one currently doing the NAT for this subnet) or the broad one the one I want to create for the major network?

Any thoughts?

  • Other Security Subjects
Cisco Employee

Re: Multiple NAT pools

The NAT pool that is used is always the most specific one, so you can have things like this:

global (outside) 2

global (outside) 1

nat (inside) 2

nat (inside) 1

Anything from will be PAT'd to and anything from any other subnet will be PAT'd to Hope that helps.

New Member

Re: Multiple NAT pools

Is this going to work the same way in routers also (means the more specific scenario).

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