Anyconnect -> Using 3 different boxes for 3 different regions
What I would suggest is looking into OGS (client will connect to server which has best latency from where he/she is sitting) , and yes it should work with Always ON - but you need a farly new version. At least that's my recollection - feel free to verify me ;-)
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...
Table of Contents 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 an...