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Radius accounting with vsa – NetComm HS1100 User Manual

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HS1100 Wireless Hotspot Gateway User Manual

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RADIUS accounting with VSA

VSA stands for Vendor Specific Attributes. This VSA is a “value in bytes” sent by RADIUS server to gateway along

with an Access-Accept packet. In other words, when your external RADIUS server accepts HS1100’s request,

RADIUS not only replies with an “access-accept” but it also carries a maximum value in bytes that each client is

allowed to transfer. This value is the maximum allowable summation of each client’s download plus upload traffic in

bytes. Access-Accept packet and VSA are sent back to gateway in one session.

The bellowing shows the summary of this VSA format: (The fields are transmitted from left to right.)

Vendor Specific Attribute

Number

Vendor Code

Vendor Assigned

Attribute Number

Attribute Value (the Max allowable

download and upload transfer for each

client in bytes)

By RADIUS Standard

By vendor

By vendor

By local administrator

26 21920

10

0x100000

This section will guide you through a VSA configuration in your external RADIUS server. Before get started, go to or

remotely connect to your external RADIUS server’s desktop.

Step 1 to 4: Run “Internet Authentication Server”, open “Remote Access Policies” and select a policy. Right click and

scroll down to its properties page.