Since 10.162.50.70 is supposed to be connected to DMZ interface as advised, and you are actually getting the traffic on inside interface of the ASA, that is why you are getting the spoof error message. Traffic sourced from 10.162.50.70 should only go inbound towards the ASA DMZ interface, not any other interfaces.
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...