DCOM errors on Windows 2008 R2 Domain Controller from non domain PCs

My DC Server (windows 2008 R2) is getting flooded with DCOM errors, from non domain PCs. This started to happen, when we had to install CTAS application from cyberoam. This application uses WMI polling and it seems that it tries to scan the entire network not just the Domain Objects which are on a different VLAN.

Did any one face this before and have a solution to this?
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Zacharia KurianAdministrator- Data Center & NetworkAsked:
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MaheshConnect With a Mentor ArchitectCommented:
WMI works on DCOM and RPC, if remote system does not respond WMI query then this event is logged by AD under Event Viewer.
Such errors are information provided to the user by Microsoft Service, and hence user can ignore such events.

For further information on DCOM error, refer to http://support.microsoft.com/kb/298095.

http://kb.cyberoam.com/print.asp?id=117&Lang=1&SID=

You may check with vendor if you can restrict application scope to specific network boundary

Mahesh
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