Command Line Interface Reference Guide > The SLB Configuration Menu
/cfg/slb/ssl/sslpol/frver
SSL Policy Front-end Version Menu
The SSL Policy Front-end Version menu lets you explicitly select supported SSL protocol versions in the front-end connection.
 
[SSL Policy 1 frver Menu]
     ssl3 - Enable/Disable frontend SSLv3 protocol version
tls10 - Enable/Disable frontend TLS1.0 protocol version
tls11 - Enable/Disable frontend TLS1.1 Protocol version
     tls12 - Enable/Disable frontend TLS1.2 Protocol version
     tls13    - Enable/Disable frontend TLS1.3 Protocol version
          cur - Display current frontend SSL protocol version configuration
 
SSL Policy Front-end Version Menu (/cfg/slb/ssl/sslpol/frver) 
Command Syntax and Usage
ssl3
 
Enables or disables front-end SSLv3 protocol version support.
If SSLv3 support is disabled, the client SSLv3 Hello is rejected; no tunnel setup is performed and the connection is terminated.
If a client sends an SSLv3 Hello message using the SSLv2 structure, Alteon continues the handshake as an SSLv3 handshake.
Values: enabled, disabled
Default: enabled
tls10
 
Enables or disables front-end TLS1.0 protocol version support.
If TLS1.0 support is disabled, the client TLS1.0 SSL Hello is rejected; no tunnel setup is performed and the connection is terminated.
Note: If only TLS1.0 is enabled and the client sends a TLS1.1 Hello, a TLS1.0 handshake will be performed successfully.
Values: enabled, disabled
Default: enabled
tls11
 
Enables or disables front-end TLS1.1 protocol version support.
If TLS1.1 support is disabled, the client TLS1.1 SSL Hello is rejected; no tunnel setup is performed and the connection is terminated.
*If only TLS1.0 is enabled and the client sends a TLS1.1 Hello, a TLS1.0 handshake will be performed successfully.
*If only TLS1.1 is enabled and the client sends a TLS1.0 Hello, the handshake is rejected.
Values: enabled, disabled
Default: enabled
tls12
 
Enables or disables front-end TLS1.2 protocol version support.
If TLS1.2 support is disabled, the client TLS1.2 SSL Hello is rejected; no tunnel setup is performed and the connection is terminated.
*If only TLS1.0 or TLS1.1 is enabled and the client sends a TLS1.2 Hello, a TLS1.0/TLS1.1 handshake will be performed successfully.
*If only TLS1.2 is enabled and the client sends aTLS1.1/ TLS1.0 Hello, the handshake is rejected.
Values: enabled, disabled
Default: enabled
tls13
 
Enables or disables front-end TLS1.3 protocol version support.
If TLS1.3 support is disabled, the client TLS1.3 SSL Hello is rejected; no tunnel setup is performed and the connection is terminated.
*If only TLS1.0, TLS1.1 or TLS1.2 is enabled and the client sends a TLS1.3 Hello, a TLS1.0/TLS1.1/TLS1.2 handshake will be performed successfully.
*If only TLS1.3 is enabled and the client sends aTLS1.0/TLS1.1/TLS1.2 Hello, the handshake is rejected.
Values: enabled, disabled
Default: enabled
cur
 
Displays the current front-end SSL protocol version configuration.