Re: It's Official, I hate DHCP!

From: Dave Shaw [MVP] (Sensei_at_NoUnsolicitedEmail.com)
Date: 10/11/04 

Date: Mon, 11 Oct 2004 15:22:27 -0400

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"Go:gul" <b_ma_k@hotmail.com> wrote in message
news:i5alm09bummeo2pt59kusb8t155v0lmhvs@4ax.com...
> It's official, after days of trying to get DHCP to behave in a
> "Textbook" manner I am unable to get it to do what I want.
>
> I have a split DHCP scope which is spread across two DHCP servers.
> Both servers know about the entire scope but server 1 has the first
> half and server two the second. Both servers are told to exclude the
> other server's half of the address range.

This is a very bad idea. Rather, you should set scopes on each server that
are differnet and do *not* overlap. Here's why:
    If one of the servers actually does fail and you decide (for some crazy
reason) to enable the entire scope on the remaining server by removing the
exclusion, everythign will work as advertised - until the other server comes
back ... wherupon it will begin leasing addresses within the now valid
address range of the other server. What then?

Address pools should NEVER overlap.

> Does anybody know how i force a set of workstations to only use a
> particular DHCP server? It has to be done in a way which will also
> work with a network boot disk so i can use RIS to pull down images to
> one half of this DHCP scope only.

Only with reservations

There shouldn't be a problem with this as you only need to know the MAC
address of the card in the workstation and add it to the reservation on the
DHCP server you prefer.

-ds

Relevant Pages

  • Re: How do I enable dynamic ip address release?
    ... Did you use the wizardfrom SBS to configure the DHCP ... machines use DHCP and no fixed addresses and the server is ... pool and how many reservations do you have? ... anyone plugs into my network they automatically get an IP ...
    (microsoft.public.windows.server.networking)
  • Re: SBS Reinstall
    ... In DHCP when I select the server it shows 192.168.16.2 and when I expand it ... "The wizard cannot set the DHCP scope options" error message when you run ... Ethernet adapter local area connection: ...
    (microsoft.public.windows.server.sbs)
  • Re: ...OS is Win 2003 Std...
    ... Microsoft Small Business Server Support ... >> The scope I have defined is identical to what you have listed, except for>> the range of the scope; ... but the message in the system error log>> indicates that it is not servicing clients because there is no NIC with a>> static IP assigned. ... >> The messages can be produced at will currently by simply restarting the> DHCP>> server service. ...
    (microsoft.public.windows.server.sbs)
  • Re: No DHCP Leases Available - SBS2K3
    ... delete scope 192.168.1.240 dhcpfullforce (command ... scope with two suggested options; stopped DHCP service; ran CEICW again - ... same message as above; started DHCP service; opened Change Server IP Address ...
    (microsoft.public.windows.server.sbs)
  • Re: Problem With Joining XP Computer to Windows 2003 Domain
    ... One, if the DC is connected directly to the Internet, DISCONNECT IT by ... I have assigned the server to Domain Controller ... > seem to be pointing to DHCP scope possibly on the server's configuration ...
    (microsoft.public.windowsxp.network_web)