VPN Client won't connect till the third attempt...
I'm having an issue with the Cisco VPN client connecting to an IOS router via an IPSec/TCP connection. The first and second connection attempts are always unsuccessful, and it always works like a charm on the third attempt. When clients try to connect I see a log message saying "ISAKMP:(0): MM Fragmentation supported", So I'm guessing it's related to MTU somehow.
If anyone has any ideas/links that might point me in the right direction, it would be greatly appreciated.
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...