08-11-2017 01:17 AM - edited 02-21-2020 06:13 AM
I have a problema with the web access to my ASA5506x
ssl_error_no_cypher_overlap
I dont have web access
08-11-2017 03:55 AM
This error means, you are unable to communicate securely with device: no common encryption algorithm
You need to get the 3des license. Once you get the activation key configure it on your device.
"conft
activation-key
wr mem"
then add it yo your ASAM then add it yo your ASAM
"config -- device management -- licenseing -- activation key"
You should active the key then enable the http service and finally configure
"ssl encryption aes256-sha1 aes128-sha1 3des-sha1 des-sha1"
if you still unable to connect, clear all the connection to the IP of the device
"clear conn all x.x.x.x" and make "show asp table socket" to make sure.
Good luck
08-13-2017 08:24 AM
Thanks sir. It worked for me.
09-27-2017 07:51 AM
Hello ,
I'm newbie with cisco firewalls , for now i'm buying a ASA 5506-x and i have the same Problem
" ssl error no cypher overlap " .
Please if you have any tutorial it will be helpful .
Thanks you so much
09-27-2017 07:59 PM - edited 09-27-2017 08:00 PM
The procedure described by B.kablawi90 earlier in this thread is accurate. Have you tried that?
I would only add that you get the free 3DES-AES license from software.cisco.com under the "Traditional license" section.
A more detailed guide can be found below as well:
09-28-2017 01:46 AM
09-28-2017 03:31 AM
ASA5500-ENCR-K9 is the correct license for you to request. Adding the "K9" license adds the strong encryption capability to the "K8" type of unit. That is the only difference between an ASA ordered with "K9" vs. "K8" in the part number.
Once you get that license and activate it using the instructions that Cisco sends you, you will be able to negotiate a common strong cipher between your client PC and your ASA.
09-28-2017 04:15 AM - edited 09-28-2017 04:17 AM
Hello ,
It Works !
i creat a license in a Cisco.com/go/license and put the activation key in my device then Reload device, And it's Fine .
Thank You so Much Sir .
09-28-2017 04:26 AM
You're welcome.
Please mark the reply as helful since it solved your issue.
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