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RADIUS
book

RADIUS

by Jonathan Hassell
October 2002
Intermediate to advanced content levelIntermediate to advanced
206 pages
8h 30m
English
O'Reilly Media, Inc.
Content preview from RADIUS

More on Proxying

RADIUS accounting proxies act in much the same way as RADIUS authentication/authorization proxies do. Consider the following process:

  1. The RADIUS client gear sends the Accounting Start packet to the accounting server.

  2. The receiving accounting server logs the packet. It may then add the Proxy-State attribute and accompanying details (though it is not required to do so). It updates the request authenticator and then forwards the information to a remote machine.

  3. This remote machine logs the incoming, forwarded packet. It then does what the first server could not do (that is to say, it performs the action that was required of the proxy), retains and copies all of the Proxy-State attributes exactly as they appeared, and sends an Accounting-Response packet back to the original forwarding server.

  4. The original forwarding server receives the acknowledgment, strips out the Proxy-State information, constructs and adds the Response Authenticator, and sends the modified acknowledgment response back to the RADIUS client gear.

Figure 4-1 shows the flow of this process.

The proxying process for RADIUS accounting
Figure 4-1. The proxying process for RADIUS accounting
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Publisher Resources

ISBN: 0596003226Errata Page