Cisco Catalyst 2960 Software Configuration Manual page 235

Chapter 9 Configuring Switch-Based Authentication
Change-of-Authorization Requests
Change of Authorization (CoA) requests, as described in RFC 5176, are used in a push model to allow
for session identification, host reauthentication, and session termination. The model is comprised of one
request (CoA-Request) and two possible response codes:
•
•
The request is initiated from a CoA client (typically a RADIUS or policy server) and directed to the
switch that acts as a listener.
This section includes these topics:
•
•
•
RFC 5176 Compliance
The Disconnect Request message, which is also referred to as Packet of Disconnect (POD), is supported
by the switch for session termination.
Table 9-2
Table 9-2
Attribute Number
24
31
44
80
101
Table 9-3
Table 9-3
Value
201
202
401
402
403
404
405
406
407
OL-26520-01
CoA acknowledgement (ACK) [CoA-ACK]
CoA non-acknowledgement (NAK) [CoA-NAK]
CoA Request Response Code
CoA Request Commands
Session Reauthentication
shows the IETF attributes are supported for this feature.
Supported IETF Attributes
Attribute Name
State
Calling-Station-ID
Acct-Session-ID
Message-Authenticator
Error-Cause
shows the possible values for the Error-Cause attribute.
Error-Cause Values
Explanation
Residual Session Context Removed
Invalid EAP Packet (Ignored)
Unsupported Attribute
Missing Attribute
NAS Identification Mismatch
Invalid Request
Unsupported Service
Unsupported Extension
Invalid Attribute Value
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
Controlling Switch Access with RADIUS
9-21