question about DHCP and exclusion range and reservations

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Dave

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I am studying for my MCSE and I came across a practice question that is
coming up with mixed results.

Q: You set up a reservation for a file server of 192.168.1.105

You setup a DHCP scope for all servers of 192.168.1.100-192.168.1.120

You also configure an exclusion range of 192.168.1.103-192.168.1.106

The file server is not recieving its IP address. Is the problem the
exclusion range which includes the 105 IP in the reservation? One source says
yes, but another source says no, and something from Microsoft seems to
indicate no
(http://technet2.microsoft.com/windo...34c5-49b5-9795-155d89035f0d1033.mspx?mfr=true
3rd bullet point at bottom)......However that does seem to be the problem....

Can anyone elaborate?
 
RE: question about DHCP and exclusion range and reservations

Hi,

Your practise should work: the reservation overrules the exception.
If your server does not receive an address, you might want to check the MAC
address (typo?) or the cabling. I assume other machines are receiving IP's
(ie: you tested the functionality of the DHCP server)?

Kind regards,
Michel

"Dave" wrote:

>
> I am studying for my MCSE and I came across a practice question that is
> coming up with mixed results.
>
> Q: You set up a reservation for a file server of 192.168.1.105
>
> You setup a DHCP scope for all servers of 192.168.1.100-192.168.1.120
>
> You also configure an exclusion range of 192.168.1.103-192.168.1.106
>
> The file server is not recieving its IP address. Is the problem the
> exclusion range which includes the 105 IP in the reservation? One source says
> yes, but another source says no, and something from Microsoft seems to
> indicate no
> (http://technet2.microsoft.com/windo...34c5-49b5-9795-155d89035f0d1033.mspx?mfr=true
> 3rd bullet point at bottom)......However that does seem to be the problem....
>
> Can anyone elaborate?
 
RE: question about DHCP and exclusion range and reservations

so basically reservations OVERRIDE exclusions?

"- Michel" wrote:

> Hi,
>
> Your practise should work: the reservation overrules the exception.
> If your server does not receive an address, you might want to check the MAC
> address (typo?) or the cabling. I assume other machines are receiving IP's
> (ie: you tested the functionality of the DHCP server)?
>
> Kind regards,
> Michel
>
> "Dave" wrote:
>
> >
> > I am studying for my MCSE and I came across a practice question that is
> > coming up with mixed results.
> >
> > Q: You set up a reservation for a file server of 192.168.1.105
> >
> > You setup a DHCP scope for all servers of 192.168.1.100-192.168.1.120
> >
> > You also configure an exclusion range of 192.168.1.103-192.168.1.106
> >
> > The file server is not recieving its IP address. Is the problem the
> > exclusion range which includes the 105 IP in the reservation? One source says
> > yes, but another source says no, and something from Microsoft seems to
> > indicate no
> > (http://technet2.microsoft.com/windo...34c5-49b5-9795-155d89035f0d1033.mspx?mfr=true
> > 3rd bullet point at bottom)......However that does seem to be the problem....
> >
> > Can anyone elaborate?
 
RE: question about DHCP and exclusion range and reservations

That is correct.

"Dave" wrote:

> so basically reservations OVERRIDE exclusions?
>
> "- Michel" wrote:
>
> > Hi,
> >
> > Your practise should work: the reservation overrules the exception.
> > If your server does not receive an address, you might want to check the MAC
> > address (typo?) or the cabling. I assume other machines are receiving IP's
> > (ie: you tested the functionality of the DHCP server)?
> >
> > Kind regards,
> > Michel
> >
> > "Dave" wrote:
> >
> > >
> > > I am studying for my MCSE and I came across a practice question that is
> > > coming up with mixed results.
> > >
> > > Q: You set up a reservation for a file server of 192.168.1.105
> > >
> > > You setup a DHCP scope for all servers of 192.168.1.100-192.168.1.120
> > >
> > > You also configure an exclusion range of 192.168.1.103-192.168.1.106
> > >
> > > The file server is not recieving its IP address. Is the problem the
> > > exclusion range which includes the 105 IP in the reservation? One source says
> > > yes, but another source says no, and something from Microsoft seems to
> > > indicate no
> > > (http://technet2.microsoft.com/windo...34c5-49b5-9795-155d89035f0d1033.mspx?mfr=true
> > > 3rd bullet point at bottom)......However that does seem to be the problem....
> > >
> > > Can anyone elaborate?
 
RE: question about DHCP and exclusion range and reservations

There is a corollary:

"Reservations in a scope must be defined on all the scope's DHCP servers to
be 100% effective"

This is not made clear by existing literature.
--
Regards,
Newell White


"- Michel" wrote:

> That is correct.
>
> "Dave" wrote:
>
> > so basically reservations OVERRIDE exclusions?
> >
> > "- Michel" wrote:
> >
> > > Hi,
> > >
> > > Your practise should work: the reservation overrules the exception.
> > > If your server does not receive an address, you might want to check the MAC
> > > address (typo?) or the cabling. I assume other machines are receiving IP's
> > > (ie: you tested the functionality of the DHCP server)?
> > >
> > > Kind regards,
> > > Michel
> > >
> > > "Dave" wrote:
> > >
> > > >
> > > > I am studying for my MCSE and I came across a practice question that is
> > > > coming up with mixed results.
> > > >
> > > > Q: You set up a reservation for a file server of 192.168.1.105
> > > >
> > > > You setup a DHCP scope for all servers of 192.168.1.100-192.168.1.120
> > > >
> > > > You also configure an exclusion range of 192.168.1.103-192.168.1.106
> > > >
> > > > The file server is not recieving its IP address. Is the problem the
> > > > exclusion range which includes the 105 IP in the reservation? One source says
> > > > yes, but another source says no, and something from Microsoft seems to
> > > > indicate no
> > > > (http://technet2.microsoft.com/windo...34c5-49b5-9795-155d89035f0d1033.mspx?mfr=true
> > > > 3rd bullet point at bottom)......However that does seem to be the problem....
> > > >
> > > > Can anyone elaborate?
 
RE: question about DHCP and exclusion range and reservations

Thanks for the replies.

"Newell White" wrote:

> There is a corollary:
>
> "Reservations in a scope must be defined on all the scope's DHCP servers to
> be 100% effective"
>
> This is not made clear by existing literature.
> --
> Regards,
> Newell White
>
>
> "- Michel" wrote:
>
> > That is correct.
> >
> > "Dave" wrote:
> >
> > > so basically reservations OVERRIDE exclusions?
> > >
> > > "- Michel" wrote:
> > >
> > > > Hi,
> > > >
> > > > Your practise should work: the reservation overrules the exception.
> > > > If your server does not receive an address, you might want to check the MAC
> > > > address (typo?) or the cabling. I assume other machines are receiving IP's
> > > > (ie: you tested the functionality of the DHCP server)?
> > > >
> > > > Kind regards,
> > > > Michel
> > > >
> > > > "Dave" wrote:
> > > >
> > > > >
> > > > > I am studying for my MCSE and I came across a practice question that is
> > > > > coming up with mixed results.
> > > > >
> > > > > Q: You set up a reservation for a file server of 192.168.1.105
> > > > >
> > > > > You setup a DHCP scope for all servers of 192.168.1.100-192.168.1.120
> > > > >
> > > > > You also configure an exclusion range of 192.168.1.103-192.168.1.106
> > > > >
> > > > > The file server is not recieving its IP address. Is the problem the
> > > > > exclusion range which includes the 105 IP in the reservation? One source says
> > > > > yes, but another source says no, and something from Microsoft seems to
> > > > > indicate no
> > > > > (http://technet2.microsoft.com/windo...34c5-49b5-9795-155d89035f0d1033.mspx?mfr=true
> > > > > 3rd bullet point at bottom)......However that does seem to be the problem....
> > > > >
> > > > > Can anyone elaborate?
 

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