DHCP Superscopes & Windows Server 2008

Does anyone know if DHCP superscopes under Windows Server 2008 will
function correctly in an environment consisting of multiple VLANs?

Thanks.

You don't use SuperScopes with VLANS,...on any version of WIndows Server.

SuperScopes are something from back in the 1980's with Cavemen before VLANs
were invented.

VLANs usage has pretty much repaced the need for SuperScopes,...and even
back then, before VLANs, the real *true* need for Superscopes by people who
knew when and when not to use them was very very very rare.

Almost everytime I run across someone trying to use SuperScopes they are
trying to do it for the wrong reasons,...and shouldn't be trying to use them
at all.

--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------


"owenw" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Does anyone know if DHCP superscopes under Windows Server 2008 will
> function correctly in an environment consisting of multiple VLANs?
>
> Thanks.

"owenw" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Does anyone know if DHCP superscopes under Windows Server 2008 will
> function correctly in an environment consisting of multiple VLANs?
>
> Thanks.


They should, and Windows (all versions) supports them, but I don't know of
anyone that uses them. Usually use DHCP Relay agents, or IP helpers on the
router or layer 3 switches.

--
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
check http://support.microsoft.com for regional support phone numbers.

"Efficiency is doing things right; effectiveness is doing the right
things." - Peter F. Drucker
http://twitter.com/acefekay

Hello,

Thank you for posting here.

According to your description, I understand that:

You want to know whether you can lease IP addresses in DHCP superscope for
clients in different VLANs.

If I have misunderstood the problem, please don't hesitate to let me know.

no, natively the Windows DHCP service doesn't support the superscope for
clients in different VLANs. The DHCP service can only serve those clients
in the local VLAN and subnet.

However, you may count on the DHCP relay agent (the router that is
compliant with RFC 1542). For more information, you may refer to:

Understanding relay agents
http://technet.microsoft.com/en-us/l.../cc779610.aspx
RFC1542
http://www.ietf.org/rfc/rfc1542.txt

Hope it helps. If you have any questions or concerns, please do not
hesitate to let me know.






Best regards,

Miles Li
Microsoft Online Newsgroup Support

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