Just had a look on the article and point 6. We have a community string (masked) written in Community String (Default) so as per the link you gave me - If I chose a new string while adding a new snmp server of that company - ASA will consider that string and not the one which is in Community String (Default). Please confirm.
Another thing - I discovered that version 7.2 doesn't support snmp v3. Is that correct ?
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...