I'm seeing exceed MSS errors for Cisco remote access and tunnel VPNs passing through or terminating at ASA 5510 (7.2.2).
I have found documentation to set to ignore MSS via a map class, but I'm confused: aren't cisco VPNs compliant with Cisco ASA rules without jerry-rigging a solution? I.m getting errors on inbound site-to-site tunnel setups, and it's blocking an outbound Cisco client VPN to a remote destination.
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...