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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

Packet Formats

The RADIUS protocol uses UDP packets to pass transmissions between the client and server. The protocol communicates on port 1812, which is a change from the original RADIUS RFC document. The first revision specified that RADIUS communications were to take place on port 1645, but later this was found to conflict with the “Datametrics” service.

RADIUS uses a predictable packet structure to communicate, which is shown in Figure 2-1.

A depiction of the RADIUS data packet structure
Figure 2-1. A depiction of the RADIUS data packet structure

The data structure is broken down into five distinct regions, which are discussed later in this chapter.

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Publisher Resources

ISBN: 0596003226Errata Page