18 Reply-Message Text to be displayed to the user. If the router field is omitted or 0, the peer IP address is used. Metrics are currently ignored. This attribute is applicable only to CHAP challenges. 26 Vendor-Specific Allows vendors to support their own extended attributes.
Protocol is a value of the Cisco protocol attribute for a particular type of authorization.
The second example causes a NAS prompt user to have immediate access to EXEC commands. 27 Session-Timeout Maximum number of seconds of service to be provided to the user before the session terminates. This attribute value becomes the per-user absolute timeout. This attribute is not valid for PPP sessions. 28 Idle-Timeout Maximum number of consecutive seconds of idle connection time allowed to the user before the session terminates.