I had the same problem, but atfer several reloads and cutting off power, it started to enter Monitor mode. First it enerts Monitor directly (without giving the option to boot from flash), hence I thought I need to reinstall the OS, so I did that from Monitor mode using the tftp method. The option to boot from flash started to appear and the OS was booted, not from the image downloaded from the tftp server but rather from the one saved originally on the flash; I discovered that after I removed the image on flash to make space for the new image. A strange thing has happened, once I removed the image on flash the PIX reloaded giving me no chance to save the new image, and thus the PIX got into a boot loop and every time I try to install the OS from Monitor mode the image is downloaded but the OS doesn't boot and the loop continues.
My PIX was working fine as a Primary in a failover configuration. It became non-operational after a power failure has occured, so my best guess is that a hardware failure is the reason.
The problem is of high urgency for us, so any help will be highly appreciated.
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...