I have an ASA5505 with 8.2.1 firmware version and 6.2.1 ASDM version. I cannot access the firewall using HTTPS (ASDM). When I try to access it from IE, the message "The page cannot be displayed" is returned. When I try to acccess it from Mozilla, the message "Fail on secure connection. Error code: ssl_error_no_cypher_overlap". I have already enabled the http server and created an access-list (http ip mask if). I believe that the issue is something about the certificate and already tried to generate some one, but the problem persists.
% The fully-qualified domain name in the certificate will be: test.domain
% Include the device serial number in the subject name? [yes/no]: yes
Generate Self-Signed Certificate? [yes/no]: yes
test(config)# show crypto ca certificates
Certificate Serial Number: hex-data certificate serial number
Certificate Usage: General Purpose
Public Key Type: RSA (1024 bits)
start date: 13:08:55 BRST Oct 21 2009
end date: 12:08:55 BRST Oct 19 2019
Associated Trustpoints: test
The message that I received in Firefox before happened when the firewall was without a certificate. Now, I received the message that wasn't possible open a secure connection because the security protocol is not activated, but the SSL and TLS are activated in IE and Firefox. IE presents the same message before. I have the same problem with another ASA 5505, but I have, too, two ASA 5510 and this problem doesn't happen with them.
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The following licenses have been activated on my router :