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HS1100 Wireless Hotspot Gateway User Manual
174
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.