Please correct me if my understanding goes wrong. You have the S2S VPN running between ASA and Router. You want to do a PAT for one of the host which is in router end Site. So that you try to access that host with the public IP in VPN tunnel. Inside the tunnel it should get PAT and go.
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...