Re: Slow throughput on PIX515 after upgrade from 6.3(2) to 6.3(5
We still run 6.3(5) since over two years at one of our branches with 100 users there approximately no issues thus far.
I should however bring up an issue I did encounter next day after the upgrade , http pages not loading properly or loading half way, it was fixed by using fixup protocol dns maximum-length 1024 from its 512 dns packet size default value... perhaps this could not be your issue but worth checking, you may also go through the check list in bellow link. look closely at your cpu usage ..
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...