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CCNP Security SISAS 300-208 Official Cert Guide by Kevin Redmon, Aaron Woland

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Global Configuration RADIUS Commands

A change in the way RADIUS servers are configured in IOS occurred between version 12.2.x and the newer 15.x IOS code. When the configuration differs in the following steps, it will be broken out into a separate section.

IOS 12.2.X

Cisco switches provide a proactive method to check the availability of the RADIUS server. With this practice, the switch will send periodic test authentication messages to the RADIUS server (Cisco ISE). It is looking for a RADIUS response from the server. A success message is not necessary—a failed authentication will suffice because it shows that the server is alive.

If you want to receive an Access-Accept response, the username you are creating here must already exist in either ...

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