I wasn´t able to capture because it was weeks ago. At this moment I can´t do it because it´s a production enviroment. My cisco support gave me this bugs CSCdt86568, CSCdu54495 but I think It was resolved in previous version.
Another thing Im using UDP version 4 instead of TCP.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
[toc:faq]Introduction:This document describes details on how NAT-T
works.Background:ESP encrypts all critical information, encapsulating
the entire inner TCP/UDP datagram within an ESP header. ESP is an IP
protocol in the same sense that TCP and UDP are I...