I am also looking for answers to your first two questions. Have you made any progress with these?
I am especially interested in using the WSA as reverspe proxy for ActiveSync, i.e. authenticating incoming users against AD and then forwarding them to Exchange. But I am afraid that this might not be possible with the WSA....
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...