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Webcast-Catalyst9k
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RADIUS & Odd user trying to login

I recently setup my main switches and routers to use RADIUS for Telnet sessions and am seeing something odd. There is a user being passed from SC0 of a 6509 switch called "azbycx" to RADIUS but is being denied of course. This happens every 5 minutes. I have done a capture on both SC0 via a SPAN as well as the entire VLAN the SC0 is on and all I see is the traffic to and from the RADIUS server. There is nothing external trying to connect.

Has anyone ever seen this before?

1 REPLY

Re: RADIUS & Odd user trying to login

This is a known 'feature' with CatOS. It is a Radius Keepalive and by default it is enabled and set to 5-minutes. This results in your switch sending a Radius request to all configured Radius servers with the username 'azbycx' every 5-minutes to determine if the servers are 'Dead' or 'Active'.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/catos/8.x/command/reference/set_po_r.html#wp1818349

HTH

Andy

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