I had logs for shunned packets in FWSM module for some servers ip addresses and the output of show shunning statistics show me that these servers were in shun database. After do clear shun my problem was fixed.
My question is: how these ip addresses were added to shun database, if we didn't any manual insertion, we haven't any IPS in this enviroment and ASDM 5.2F haven't any option to enable shun ?
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...