SSL; all the units have SSLv2 and SSLv3 disabled the by default.
The CN8000A, KN1000A, and CN8600, use a special command to invoke sslv2 and sslv3
Located under Maintenance / Ping Host / tc get)
The CN8000 and KN1000 support TLS1.0 only.
The CN8000A, KN1000A, and CN8600 support TLS 1.2, 1.1, and 1.0.