I'm testing IPSEC VPN, with the following IOS 12.3.1.
The VPN is working but when I ping with packet size equal or bigger than 1500 byte the packet get dropped with the following error (when I debug crypto ipsec) *Sep 15 00:17:01.374: IPSEC(crypto_engine_ipsec_find_peer): cannot find ipsec flow from flow_id 25546
I think this isuue is related to defragmentation, from the documentation I found that the Look ahead fragmentation is enabled by default.
I also enabled LAF manually but I still get the same error.
Could you please help, no bug is published in CCO.
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...