IPS 4255 stops passing traffic

[QTIM]

Hello

I have a couple of 4255's that when bypass mode is set to 'auto' will pass traffic for 10 minutes or so and then stop passing traffic. There are no entires in the Denied Attackers or Active Host Blocks/Network Blocks/Rate Limits lists. What could be causing this? Where/what logs do I need to check in order to troubleshoot the problem and what should I be looking for?

All suggestions welcome. Thanks.

Chris

[a.giorgi]

Hi:

There are another Post with the same question

http://forums.cisco.com/eforum/servlet/NetProf;jsessionid=85asjbvgs1.SJ3A?page=netprof&forum=Security&topic=Intrusion%20Prevention%20Systems/IDS&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddb291f

I suspect it could be a bug. But just in case see the last event registerd in the log.

Hope it help. Please rate if it does.

Regards

Alberto Giorgi from spain.