ACS 3.3 tracing an async login attempt.

Answered Question
Aug 18th, 2010

For the past month I've had something with a user name of "cisco" attempting to login into 2 of my routers about every 5-15 seconds (it varies).  It doesn't give a caller address it just shows async.  It fails to login as user unknown as it should, but it keeps attempting over and over again.  It has to be something internal because the devices are inside the firewalls, but I have no idea on how to track down what device is attempting to connect to these routers with the information I have from the ACS failed attempt logs.  Any help?

I have this problem too.
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Correct Answer by Yudong Wu about 6 years 5 months ago

There might be something connected to router's console/Aux port to cause this. That's why you saw "async" in caller address.

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Correct Answer
Yudong Wu Wed, 08/18/2010 - 15:50

There might be something connected to router's console/Aux port to cause this. That's why you saw "async" in caller address.

bstevens85 Thu, 08/19/2010 - 06:53

Both of these are remote sites so I'm trying to track someone down to check, thanks for the suggestion, I'll

let you know.

bstevens85 Fri, 08/20/2010 - 07:18

Thank you, it ended up being an Envoy device plugged into the console port.

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