Function command -- nat-t-disable

[eigrpy]

Dear All

I am configuring lan to lan VPN at ASA. As we know, we usually need to disable nat for this traffic using twice nat. However I saw this command nat-t-disable, which could be used under interface. So my question is if we can replace that twice nat with command -- nat-t-disable ? if so, what is difference between them? Thank you

[Puneesh Chhabra]

NAT T is nat traversal.  It is used to encapsulate your ESP communication to UDP 4500 to overcome PAT limitations.  Here's thorough explanation of it:

https://supportforums.cisco.com/document/64281/how-does-nat-t-work-ipsec

It is entirely different from NAT exempt or twice NAT you are referring to.

Regards,

Puneesh