I have about 30 users behind a 2620 configured for NAT but I'll call it PAT because I'm overloading all the translations to one static IP. My users are periodically experiencing a very slow internet connection. Could this be the problem and if so how do I verify that it is ? HELP!
I'd have to say NAT/PAT alone is not your problem. I have 1500 users being PAT'ed the same way, and the CPU doesn't run above 20% at peak. That's not to say you don't have something else going on there, but it's not real likely the PAT issue.
Quick way to tell is to do a "show proc cpu" (or depending on IOS version, a "show proc cpu hist"). That tends to be very enlightening. Of course, you could be running into routing issues related to your PAT scheme too, but I'd tend to look elsewhere first.
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...