The server has a standard hyper-v NIC, the host NIC to which it is
attached is an Intel Pro/1000, and going by the MAC address on the
projector it is a D-Link.  There are Broadcom NICs on the host machine,
but I wouldn't think they would be a factor somehow, would they?

 

From: [email protected] [mailto:[email protected]] 
Sent: Tuesday, July 19, 2011 1:55 PM
To: NT System Admin Issues
Subject: Re: Weird Duplicate IP address problem

 


Are Broadcom NICs involved anywhere? 
-- 
richard 

"Ralph Smith" <[email protected]> wrote on 07/19/2011 11:56:28
AM:

> I have a Windows 2008 Server with a statically assigned IP address 
> that seems to have an issue with another  device on my network. 
> Whenever the server is rebooted, it displays an error that there is 
> a duplicate IP address on the network, and changes its own address 
> to an auto-configured 169... address. 
> The thing is it says it conflicts with the device having the IP 
> address of 0.0.0.0., and gives the MAC address of the conflicting 
> device.  As far as I know this means it's a MAC address conflict.  
> However the conflicting device does not share the IP address or the 
> MAC address of the server. 
> The other device happens to be an Infocus projector that gets it IP 
> Address through a DHCP reservation. 
> If I pull the cable on the projector and then reset the NIC on the 
> server there are no problems.  If I then plug the projector back in 
> the two machines coexist happily until I have to reboot the server. 
> Also, if I change the IP address on the server NIC  without 
> disconnecting the projector, the server is happy with its new 
> address until the next time it reboots.  At which point I can change
> it back to its original IP address and again all is well. 
> So it detects an IP address conflict, but there is no duplicate IP 
> address on the network, nor is the MAC address a duplicate.  It only
> throws this error when the server boots, otherwise its fine.  The 
> server is a VM on Hyper-V and is a DC that also does DNS and DHCP.  
> I've looked at DNS, WINS, DHCP and don't see anything amiss. 
> Any suggestions on how to fix this?  Thanks. 
>   
> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~
> ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~
> 
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