DHCP Qs.

Hi all

To enhance the security, is it possible to assign the IP address to clients
only if their mac address is already registered in the DHCP database?

Thanks
BT

"BT" <(E-Mail Removed)> wrote in message...
> Hi all
>
> To enhance the security, is it possible to assign the IP address to
> clients only if their mac address is already registered in the DHCP
> database?
>
> Thanks
> BT
>
>

Yes, that is called a DHCP reservation.

--
Todd J Heron, MCSE
Windows Server 2003/2000/NT; CCA

But DHCP reservation will only assign the same ip address to the client.
I wanne only those registered MAC address to get the ip address. Anyone can
help?

Thanks
BT

"Todd J Heron" <todd_heron(delete)@hotmail.com> wrote in message
news:(E-Mail Removed)...
> "BT" <(E-Mail Removed)> wrote in message...
> > Hi all
> >
> > To enhance the security, is it possible to assign the IP address to
> > clients only if their mac address is already registered in the DHCP
> > database?
> >
> > Thanks
> > BT
> >
> >
>
> Yes, that is called a DHCP reservation.
>
> --
> Todd J Heron, MCSE
> Windows Server 2003/2000/NT; CCA
>

Hi,

BT wrote:
> To enhance the security, is it possible to assign the IP address to
> clients only if their mac address is already registered in the DHCP
> database?

The reservation, as suggested by Todd, will work fine for that. You can set
up a DHCP scope consisting entirely of reservations.

It should be noted, though, that this is not a serious security measure by
any means -- anyone wanting to make an unauthorized connection would simply
have to identify an unused address and the other settings (all of which is
easy enough) and set up a static configuration.


--
Chris Priede

In news:O3$(E-Mail Removed),
BT <(E-Mail Removed)> stated, which I commented on below:
> But DHCP reservation will only assign the same ip address to the
> client.
> I wanne only those registered MAC address to get the ip address.
> Anyone can help?
>
> Thanks
> BT

As Chris mentioned, it is not really a security setting but rather to
control who gets what IP. As for as what you want to do, albeit not really
security, a 3rd party tool such as QIP or MetaIP will do that, but rather
expensive since it's an enterprise solution, and I think they're sold based
on blocks of thousands of users.

--
Ace

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Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Windows Server Directory Services
Microsoft Certified Trainer
Assimilation Imminent. Resistance is Futile.
Infinite Diversities in Infinite Combinations.
=================================

thank you to all experts

BT

"Chris Priede" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi,
>
> BT wrote:
> > To enhance the security, is it possible to assign the IP address to
> > clients only if their mac address is already registered in the DHCP
> > database?
>
> The reservation, as suggested by Todd, will work fine for that. You can
set
> up a DHCP scope consisting entirely of reservations.
>
> It should be noted, though, that this is not a serious security measure by
> any means -- anyone wanting to make an unauthorized connection would
simply
> have to identify an unused address and the other settings (all of which is
> easy enough) and set up a static configuration.
>
>
> --
> Chris Priede
>
>