RADIUS Server High Availability?

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Jan 18th, 2010
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I have two RADIUS servers in my network (one to be the failover serv) and one of them has been having problems, the server is not getting down but the radius service is getting crashed. Don't know why the failover server doesn't respond the authentication for the users if the books said that this is something automatic.

Is there one command to allow the switch to recognize if the service is down in one of the radius servers and automatically use the other one to authenticate the users?.


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Ganesh Hariharan Mon, 01/18/2010 - 22:20
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In switches you need to configure two radius server with secret key along with,so as per the sequence in the IOS the request will directed to radius servers.

Below will the command to configure tacas/radius server in switches

tacacs-server host 10.1.x.x
tacacs-server host 10.2.x.x

Hope that help out your query !!




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