Tuesday, December 29, 2015

Firefox CUCM SSL Handshake Error



Firefox Error:
Secure Connection Failed
An error occurred during a connection to <IP ADDRESS of CUCM>. SSL peer rejected a handshake message for unacceptable content. (Error code: ssl_error_illegal_parameter_alert)

In Firefox:
Open About:Config
Search for “security.tls
Edit security.tls.insecure_fallback_hosts and add the <IP ADDRESS of CUCM>
Edit security.tls.version.fallback-limit and set to 0
Edit security.tls.version.min and set to 0