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Benjamin_8557's avatar
Benjamin_8557
Icon for Altostratus rankAltostratus
May 11, 2016

[Certificate Client Authentication] ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Hi,   I use client certificate to authenticate access to a web service. The client certificate is self-signed and I check it with the default BigIP CA.   But, when I request the web service w...
BIG-IP
LTM
security
Yann_Desmarest's avatar
Yann_Desmarest
Icon for Cirrus rankCirrus

Hello,

 

This message indicates that the SSL version or the Cipher list supported by the F5 and its peer (the client) doesn't match.

 

You should do a tcpdump on the client or on the F5 system to check the ssl handshake. You may see that there is no matching ciphers between the browser and the VS.

 

You can also setup the debug level for SSL on System >> Logs >> Options

 

Yann_Desmarest's avatar
Yann_Desmarest
Icon for Cirrus rankCirrus
May 11, 2016
When you trace the ssl connection, what are the cipher list advised by each peer and which ssl version is used ? I already seen changes between ssl version and ciphers advised when using or not using Client Authentication