Concept Guide

Radius Attribute
code
Radius Attribute Description Mandatory
26 Vendor-Specic t=26(vendor-specic);l=length;vendor-identication-
attribute;Length=value; Data=”cmd=terminate-session”
Yes
Table 81. DM AAA Session(s) disconnect
Radius Attribute
code
Radius Attribute Description Mandatory
NAS Identication Attributes
4 NAS-IP-Address IPv4 address of the NAS. No
95 NAS-IPv6–Address IPv6 address of the NAS. No
Session Identication Attributes
1 User-Name
Name of the user associated with one or more sessions
- AAA user name
Yes
5 NAS-Port Port on which session is terminated No
Authorization Attributes
26 Vendor-Specic t=26(vendor-specic);l=length;vendor-identication-
attribute;Length=value; Data=”cmd=disconnect-user”
Yes
Error-cause Values
It is possible that a Dynamic Authorization Server cannot honor Disconnect Message request or CoA request packets for some reason.
The Error-Cause Attribute provides more detail on the cause of the problem. It may be included within CoA-Nak and Disconnect-Nak
packets.
The following table describes various error causes for the CoA and DM requests:
Table 82. Error-cause Values
Serial
Number
Error-cause Scenarios
1 Unsupported Attributes(401)
• CoA or DM request containing one or more unsupported attributes.
• DM requests containing attributes other than NAS/Session identication attributes.
2 Invalid Attribute Value(407)
• CoA or DM request containing the incorrect NAS-Port, calling-station-id, and
Vendor-Specic attribute values.
3 NAS Identication
Mismatch(403)
• CoA request containing NAS-IP-Address or NAS-IPV6-Address that does not
match NAS.
4 Administratively Prohibited(501)
• NAS is congured to ignore the CoA or DM request. Also, dot1x is not congured on
the NAS-Port.
5 Session Context Not
Found(503)
• CoA or DM request containing session identication attributes that does not match
any of the NAS user sessions.
742 Security