If this is all the debugs that you are seeing, then you are correct, looks like 22.214.171.124 is not responding to phase 1 of the IPSEC Tunnel.
What about the debugs on .163. If you are not seeing anything on the debugs, probably there is a firewall that is blocking UDP Port 500 towards .163. If you are seeing .163 respond, then could be a firewall that is blocking UDP Port 500 towards the router you initiated the connection.
Make sure the configuration is correct and there is no firewall or ACLs that are blocking UDP Port 500 and Protocol 50 (ESP).
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...