I am running IOS version 4.7.2.O on a 3020 concentrator. It is being used by one access group that authenticates to a AD server and gets DHCP from there as well. The group is for local LAN access. All was fine until we updated to the 4.7.x code. Now when the first user initiates a connection the CPU spikes to 100% and locks the concentrator up. We have the SEP-E module and it is handling traffic according to the logs.
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...