Just received a new ASA 5520 and I'm trying to update the ASA s/w to 7.2 and the ASDM to 5.2. I have copied the files to flash, but when I run "asdm image flash:/asdm521.bin" I get an error that it's not an image file, and I don't know where to start with the ASA. Any help would be appreciated. I can't find any info in my documentation.
If you already followed proper steps/procedures to copy the image in, just like how you transfered (tftp) the ASA 7.2 image file which was working fine, then you might need to check the asdm file again for correct image size, extra filename characters or missing .bin extension.
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...