Are you experiencing the same symptoms everytime you try to SSH into the FWSM? Can you try to SSH to the FWSM for 3 times, and see if you are experiencing the same issue everytime, ie: only after the third time, you are able to successfully log in.
Can you share the output when you test it? What error message are you getting?
Also, is there only 1 concurrent SSH session into the FWSM? You can check via "show ssh sessions"
Also what SSH Client are you using? Have you tried different SSH Client? and which version of SSH, have you tried both version 1 and 2? is there any difference?
May be the password was typed incorrectly until the 3rd time. How many times have you been able to consistently reproduced this?
I would have someone else type the password for the user admin for a change.
create another username and try that
username cisco password cisco priv 15
logging buffered 7
and watch for these below logs.
%FWSM-7-710002: tcp access permitted from 10.36.109.35/11221 to man:10.36.109.80/ssh %FWSM-6-302013: Built inbound TCP connection 0 for man:10.36.109.35/11221 (10.36.109.35/11221) to man:10.36.109.80/22 (10.36.109.80/22) %FWSM-6-109005: Authentication succeeded for user 'cisco' from 10.36.109.35/11221 to 10.36.109.80/22 on interface man %FWSM-6-611101: User authentication succeeded: Uname: cisco %FWSM-6-605005: Login permitted from 10.36.109.35/11221 to man:10.36.109.80/ssh for user "cisco"
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...