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From: Howard Huntley on 26 Jun 2008 00:41
What is going on, My Vista home ultimate HP dv9000z notebook is
sending LAN a MAC: 00-00-00-00-00-00, I tested it with a fluke
Lanmeter and verified that it is as it appears. When I used ARP, I am
also showing a print server as having the same MAC:00-00-00-00-00-00.
What is going on with this? Can any one give me some insite as to what
is happening??
From: News Reader on 26 Jun 2008 15:45
Howard Huntley wrote:
> What is going on, My Vista home ultimate HP dv9000z notebook is
> sending LAN a MAC: 00-00-00-00-00-00, I tested it with a fluke
> Lanmeter and verified that it is as it appears. When I used ARP, I am
> also showing a print server as having the same MAC:00-00-00-00-00-00.
> What is going on with this? Can any one give me some insite as to what
> is happening??

The only usage of 00-00-00-00-00-00 that comes to mind is Gratuitous ARPs.

Upon receiving a lease on an IP address, a Windows host sends three
Gratuitous ARP "Requests".

The host uses it's own addresses as the source addresses, and it's own
IP address as the destination address, but a target MAC address of
00:00:00:00:00:00.

Wouldn't think you would end up with an ARP entry based on a destination
MAC though.

Best Regards,
News Reader
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