I have a customer where the NetApp Filers and vFilers are generating Netlogon Event ID 5722 in the System event log on the Windows 2008 R2 Domain Controllers.
Example:
Log Name: System
Source: NETLOGON
Date: 18/07/2012 11:32:22 AM
Event ID: 5722
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: dc1.mydomain.com
Description:
The session setup from the computer vfiler1 failed to authenticate. The name(s) of the account(s) referenced in the security database is vfiler1$. The following error occurred:
The system detected a possible attempt to compromise security. Please ensure that you can contact the server that authenticated you.