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VoIP Phones and DHCP question

 
 
tkerns
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      03-01-2007, 06:06 PM
We want to assign a specific dhcp scope to
our Polycom and SNOM VoIP phones. We have used a packet sniffer and have
determined that these phones do not send out a vendor id. We were told that
the first 6 of the MAC address is vendor specific and want to know if
Microsoft DHCP has the ability to use wildcards to assign a scope based on
the first 6 of the MAC Address? Or if anyone knows a different method it
would be a great help.

 
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Phillip Windell
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      03-01-2007, 09:44 PM
That MAC would be associated with the chipset of the built in Nic,...not the
phone itself. Those nics most likely come from some other manufacturer,...and
that could change from time to time. So the phones may not always show the same
"vendor" in the MAC. Worse yet, if the Nic manufacturer happens to be one that
also built the Nics in your PCs & Servers,...then the phones won't be
distinguishable (via the Vendor portion of the MAC) from the other machines on
the network.

Just speculation,...but something to consider.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed (as annoying as they are, and as stupid as they sound), are
my own and not those of my employer, or Microsoft, or anyone else associated
with me, including my cats.
-----------------------------------------------------

"tkerns" <(E-Mail Removed)> wrote in message
news:35F5DEBC-F48B-4BE4-9522-(E-Mail Removed)...
> We want to assign a specific dhcp scope to
> our Polycom and SNOM VoIP phones. We have used a packet sniffer and have
> determined that these phones do not send out a vendor id. We were told that
> the first 6 of the MAC address is vendor specific and want to know if
> Microsoft DHCP has the ability to use wildcards to assign a scope based on
> the first 6 of the MAC Address? Or if anyone knows a different method it
> would be a great help.
>



 
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