We have recently witnessed packet loss over one of our IPSec tunnels. Peer to peer (router to router) tests return no p-loss, but ICMP traffic over the tunnel experiences 15-20% packet loss. This is an intermittent issue and affects all services, not just ICMP. Any thoughts outside a potential ISP issue?
We have a PIX 525 connecting to a Check point FW. There is a NAT process (/24 static) run on the 525 for the source traffic.
Often times complex troubleshooting issues are best addressed in an interactive session with one of our trained technical assistance engineers. While other forum users may be able to help, its often difficult to do so for this type of issue.
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...