DHCP Assignments

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Is it possible to set the DHCP server to assign addresses ONLY to registered MAC addresses?
 
Yes you can make reservations for MAC addresses. If you
are running AD, open up DHCP, open the server name, open
the scope folder, right click on Reservations folder, and
follow the wizard. I've never done it myself, but I
believe that will work.
-----Original Message-----
Is it possible to set the DHCP server to assign addresses
Click to expand...
ONLY to registered MAC addresses?
 
I have no problem making reservations, I don't want IP addresses assigned to computers that have not registered. We are a school and have a wireless network, and I want students and faculty to be able to use laptops, but I want DHCP to monitor who is assigned and addressa nd who is not.
 
After you have created reservations for all "authorized" computers, exclude
any unreserved addresses in your scope. DHCP will not have any available
addresses to give to clients without reservations.

--

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.


Michael Hill said:
I have no problem making reservations, I don't want IP addresses assigned
Click to expand...
to computers that have not registered. We are a school and have a wireless
network, and I want students and faculty to be able to use laptops, but I
want DHCP to monitor who is assigned and addressa nd who is not.
 
A better way to handle this is to create a MAC address filter on your access
point. Only addresses in that list will be able to receive IP.

Your only issue then would be if someone brings in a device and physically
plugs it into a wall jack.
 
:
: A better way to handle this is to create a MAC address filter on your
access
: point. Only addresses in that list will be able to receive IP.

If encryption is turned on, how do they gain access without knowing the
encryption code?

: Your only issue then would be if someone brings in a device and physically
: plugs it into a wall jack.

Then you need reservations also with a block on any unused addresses.

--
Roland Hall
/* This information is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of merchantability
or fitness for a particular purpose. */
Online Support for IT Professionals -
http://support.microsoft.com/servicedesks/technet/default.asp?fr=0&sd=tech
 
:
: "Rob Elder, MVP-Networking" wrote:
: : A better way to handle this is to create a MAC address filter on your
: access
: : point. Only addresses in that list will be able to receive IP.
:
: If encryption is turned on, how do they gain access without knowing the
: encryption code?
:
: : Your only issue then would be if someone brings in a device and
physically
: : plugs it into a wall jack.
:
: Then you need reservations also with a block on any unused addresses.

I knew this didn't feel right and I can't believe I've missed it. If the
DHCP server doesn't provide an address, that's fine. Anyone can still
manually set an IP address in there. You would need something that only
accepts specific addresses for routing, so the router would have to block
this or a filter like Super Scout which would have to be running on a
PC/Server attached to a shared hub which is in-between, the switch and the
router.

--
Roland Hall
/* This information is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of merchantability
or fitness for a particular purpose. */
Online Support for IT Professionals -
http://support.microsoft.com/servicedesks/technet/default.asp?fr=0&sd=tech
 
Back
Top