User Guide

Chapter 4 Configuring the domain 149
Nortel Secure Network Access Switch 4050 User Guide
Configuring Nortel SNAS 4050-specific attributes using the CLI
The RADIUS accounting server uses Vendor-Id and Vendor-Type attributes in
combination to identify the source of the accounting information. The attributes
are sent to the RADIUS accounting server together with the accounting
information for the logged in user.
You can assign vendor-specific codes to the Vendor-Id and Vendor-Type
attributes for the Nortel SNAS 4050 domain. In this way, the RADIUS accounting
server can provide separate accounting information for each Nortel SNAS 4050
domain.
Each vendor has a specific dictionary. The Vendor-Id specified for an attribute
identifies the dictionary the RADIUS server will use to retrieve the attribute
value. The Vendor-Type indicates the index number of the required entry in the
dictionary file.
The Internet Assigned Numbers Authority (IANA) has designated SMI Network
Management Private Enterprise Codes that can be assigned to the Vendor-Id
attribute (see www.iana.org/assignments/enterprise-numbers).
RFC 2866 describes usage of the Vendor-Type attribute.
Contact your RADIUS system administrator for information about the
vendor-specific attributes used by the external RADIUS accounting server.
To simplify the task of finding accounting entries in the RADIUS server log, do
the following:
1 In the RADIUS server dictionary, define a descriptive string (for example,
NSNAS-Portal-ID).
2 Map this string to the Vendor-Type value.
To configure vendor-specific attributes in order to identify the Nortel SNAS 4050
domain, use the following command:
/cfg/domain #/aaa/radacct/vpnattribu
The VPN Attribute menu displays.