Extra MAC

My Windows 2003 Server is assigned an IP address ten times by a DHCP server.
The MAC address of these "extra hosts" also has 10 extra bytes tacked onto
the end of them. Any idea of what is happening?

Is the DHCP server doing an auto-cloning of some sort that I am not aware
of? Thanks.

On Apr 8, 10:12*am, "Patrick Whittle" <patrick_whit...@hotmail.com>
wrote:
> My Windows 2003 Server is assigned an IP address ten times by a DHCP server.
> The MAC address of these "extra hosts" also has 10 extra bytes tacked onto
> the end of them. *Any idea of what is happening?
>
> Is the DHCP server doing an auto-cloning of some sort that I am not aware
> of? *Thanks.
>
> *MAC_Extra.htm
> 3KViewDownload

I'm not positive, but this sounds like the DHCP addresses assigned to
RAS/VPN interfaces.

What about server licensing? If a server was installed as per-seat as
apposed to per license... will Windows Server then request ten IP addresses
via DHCP?

"Ryan" <(E-Mail Removed)> wrote in message
news:c3777dd4-f101-443c-b541-(E-Mail Removed)...
On Apr 8, 10:12 am, "Patrick Whittle" <patrick_whit...@hotmail.com>
wrote:
> My Windows 2003 Server is assigned an IP address ten times by a DHCP
> server.
> The MAC address of these "extra hosts" also has 10 extra bytes tacked onto
> the end of them. Any idea of what is happening?
>
> Is the DHCP server doing an auto-cloning of some sort that I am not aware
> of? Thanks.
>
> MAC_Extra.htm
> 3KViewDownload

I'm not positive, but this sounds like the DHCP addresses assigned to
RAS/VPN interfaces.

On Apr 9, 9:03*am, "Patrick Whittle" <patrick_whit...@hotmail.com>
wrote:
> What about server licensing? *If a server was installed as per-seat as
> apposed to per license... will Windows Server then request ten IP addresses
> via DHCP?
>
> "Ryan" <ryanscri...@alumni.utexas.net> wrote in message
>
> news:c3777dd4-f101-443c-b541-(E-Mail Removed)...
> On Apr 8, 10:12 am, "Patrick Whittle" <patrick_whit...@hotmail.com>
> wrote:
>
> > My Windows 2003 Server is assigned an IP address ten times by a DHCP
> > server.
> > The MAC address of these "extra hosts" also has 10 extra bytes tacked onto
> > the end of them. Any idea of what is happening?
>
> > Is the DHCP server doing an auto-cloning of some sort that I am not aware
> > of? Thanks.
>
> > MAC_Extra.htm
> > 3KViewDownload
>
> I'm not positive, but this sounds like the DHCP addresses assigned to
> RAS/VPN interfaces.

The licensing service does not request DHPC addresses on behalf of
licensed computers.

But even still, after powering down the server and clearing out all IP's
from the router... 10 more entries show up on the router every time I
re-start the server.

"Ryan" <(E-Mail Removed)> wrote in message
news:2f0ed9d3-0199-4a9d-afe6-(E-Mail Removed)...
On Apr 9, 9:03 am, "Patrick Whittle" <patrick_whit...@hotmail.com>
wrote:
> What about server licensing? If a server was installed as per-seat as
> apposed to per license... will Windows Server then request ten IP
> addresses
> via DHCP?
>
> "Ryan" <ryanscri...@alumni.utexas.net> wrote in message
>
> news:c3777dd4-f101-443c-b541-(E-Mail Removed)...
> On Apr 8, 10:12 am, "Patrick Whittle" <patrick_whit...@hotmail.com>
> wrote:
>
> > My Windows 2003 Server is assigned an IP address ten times by a DHCP
> > server.
> > The MAC address of these "extra hosts" also has 10 extra bytes tacked
> > onto
> > the end of them. Any idea of what is happening?
>
> > Is the DHCP server doing an auto-cloning of some sort that I am not
> > aware
> > of? Thanks.
>
> > MAC_Extra.htm
> > 3KViewDownload
>
> I'm not positive, but this sounds like the DHCP addresses assigned to
> RAS/VPN interfaces.

The licensing service does not request DHPC addresses on behalf of
licensed computers.

Like the other poster said.... its probably RAS server. Check it, go to
services and stop it, uninstall it, configure it not to preconfigured the
IP, configure it to use AD DHCP instead of RAS DHCP or configure it for
static IP address.

The point is to follow his advice and see if that stops the problem.

From a distance - his explanation seems to fit your problem.




"Patrick Whittle" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> But even still, after powering down the server and clearing out all IP's
> from the router... 10 more entries show up on the router every time I
> re-start the server.
>
> "Ryan" <(E-Mail Removed)> wrote in message
> news:2f0ed9d3-0199-4a9d-afe6-(E-Mail Removed)...
> On Apr 9, 9:03 am, "Patrick Whittle" <patrick_whit...@hotmail.com>
> wrote:
>> What about server licensing? If a server was installed as per-seat as
>> apposed to per license... will Windows Server then request ten IP
>> addresses
>> via DHCP?
>>
>> "Ryan" <ryanscri...@alumni.utexas.net> wrote in message
>>
>> news:c3777dd4-f101-443c-b541-(E-Mail Removed)...
>> On Apr 8, 10:12 am, "Patrick Whittle" <patrick_whit...@hotmail.com>
>> wrote:
>>
>> > My Windows 2003 Server is assigned an IP address ten times by a DHCP
>> > server.
>> > The MAC address of these "extra hosts" also has 10 extra bytes tacked
>> > onto
>> > the end of them. Any idea of what is happening?
>>
>> > Is the DHCP server doing an auto-cloning of some sort that I am not
>> > aware
>> > of? Thanks.
>>
>> > MAC_Extra.htm
>> > 3KViewDownload
>>
>> I'm not positive, but this sounds like the DHCP addresses assigned to
>> RAS/VPN interfaces.
>
> The licensing service does not request DHPC addresses on behalf of
> licensed computers.

In news:(E-Mail Removed),
Patrick Whittle <(E-Mail Removed)>, posted the following:
> But even still, after powering down the server and clearing out all
> IP's from the router... 10 more entries show up on the router every
> time I re-start the server.
>

If RRAS is configured to use DHCP for IP distribution to RAS clients, it
will grab blocks of 10 IPs at a time as needed. This is default. You can
work around it by providing a static pool in RRAS properties.


--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSA Messaging, MCT
Microsoft Certified Trainer
(E-Mail Removed)

For urgent issues, you may want to contact Microsoft PSS directly. Please
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