This is sort of urgent for us so pls send in your valued inputs at the earliest.
We had two Cisco PIX 520 (REV D0) running in failover mode. We decided to upgrade one of them to the latest software, I think 6.3 or 7 version. The upgrade failed and one of the firewall is down since more than 5 days now. Booting from floppy also fails. Till now I have tried both version 5 and 6 to try and get it up and the upgrade fails saying "Checksum error". I tried a different floppy also but the same error.
Yesterday I also tried pressing the "reset" button on the front panel hoping that to reset PIX to factory defaults but that too did not help.
I believe NetPro is my last resort of solving this issue else its going to be difficult for us.
Re: PIX 520 not booting from floppy, failed upgrade
On your suggestion I tried Boothelper and looks like it could get me the solution. I was able to get a prompt using Boothelper. On prompt I was able to download the pix615.bin (I tried pix635.bin also) but then the PIX failed with an error "Wathdog timeout error..." and it rebooted.
Could there be a issue with Flash? Its showing 5345792 bytes in flash while the actual image of pix615.bin is 2193408 bytes.
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...