The PIX is reloading every day or two at different times. I am running version 6.1.4 with a gig of ram. As far as I can see, the only thing that could be cause the choke is the level of logging. I am currently logging informational to a syslog server. Every second there must be about 100 messages. This bug was known for earlier versions but was supposed to fixed by 6.1.4
If you plug a terminal into the console, do you see any tracebacks or other messages when it reboots? 100 messages per second will be putting quite a load on the PIX, does a "sho block" command indicate you're running out of memory blocks?
If you see a traceback message then open a TAC case and attach this output to the case and the TAC will be able to figure it out for you.
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...