I just installed a 525 at a remote site. I made sure I had a good host name and FQDN in the config. I generated the RSA key pair. SSH statements are there as well allowing access to the inside interface. I was then able to SSH into the box via an IPSEC tunnel and do some further configuring. The next day, however, I tried getting back into the box and now nothing happens. I end up getting a ssh_exchange_identity:session closed by remote host error. Its as if the key is not there now. I had a local on-site engineer reload the box and everything came back up again. That lasted a day. The next day the same thing has happened. It's seems that for whatever reason the SSH server key keeps dropping out of the config.
Any ideas, because I'm definitely scratching my head.
FYI: The code is 6.3(3)xxxx something... and yes i've done a ca save all so the generated keys should stay in flash. All other traffic is working fine. I can even ping the inside interfae with no problems. SSH just keeps screwing up!
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...