Jon spotted the problem in your initial configuration and gave a working solution. A potentially more simple solution:
set ip dscp af11
set ip dscp af21
The class "class-default" is always present and has the definition of "match any", which means all the rest of traffic not matched in any other class before. This will achieve the same result as your ACL ALL matching all IP traffic.
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...