Cisco Cisco Web Security Appliance S390 ユーザーガイド

Check the Enable External Authentication option if it is not enabled already.

Enter the hostname for the RADIUS server.

Enter the port number for the RADIUS server. The default port number is 1812.

Enter the Shared Secret password for the RADIUS server.

Enter the number of seconds for the appliance to wait for a response from the server before timing out.

(Optional) Click Add Row to add another RADIUS server. Repeat steps 

 for each RADIUS server.

You can add up to ten RADIUS servers.

Enter the number of seconds AsyncOS stores the external authentication credentials before contacting 
the RADIUS server again to re-authenticate in the “External Authentication Cache Timeout” field. 
Default is zero (0).

If the RADIUS server uses one-time passwords, for example passwords created from a token, 
enter zero (0). When the value is set to zero, AsyncOS does not contact the RADIUS server again 
to authenticate during the current session.

Configure Group Mapping:

Map externally authenticated 
users to multiple local roles.

AsyncOS assigns RADIUS users to appliance roles based on the 
RADIUS CLASS attribute. CLASS attribute requirements:

3 character minimum

253 character maximum

no colons, commas, or newline characters

one or more mapped CLASS attributes for each RADIUS user 
(With this setting, AsyncOS denies access to RADIUS users 
without a mapped CLASS attribute.) 

For RADIUS users with multiple CLASS attributes, AsyncOS 
assigns the most restrictive role. For example, if a RADIUS user 
has two CLASS attributes, which are mapped to the Operator and 
Read-Only Operator roles, AsyncOS assigns the RADIUS user to 
the Read-Only Operator role, which is more restrictive than the 
Operator role.

These are the appliance roles ordered from least restrictive to most 
restrictive:

Administrator 

Operator

Read-Only Operator

Guest

Map all externally authenticated 
users to the Administrator role.

AsyncOS assigns RADIUS users to the Administrator role.