Getting error %CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection
The ISP is doing NAT, for me as they choose to use private range for wan connection. I am using a loopback interface to source vpn, but my packets still fail and I get %CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection on the remote side.
Re: Getting error %CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac veri
The MAC verify processing failed. This may be caused by the use of the wrong key by either party during the MAC calculations. This activity could be considered a "hostile event" such as an attempt by an unauthorized user to break into a network.
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...
[toc:faq]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 and UDP are I...