DHCP Priority

Hello,
Is there a way to have 2 or more Windows DHCP Servers running and specify
which DHCP server is higher or lower priority?

Hi

The best way is the 50/50 method. Which I use when I have 2 or more servers.


Here is a good example


DHCP Server 1 range 192.168.1.100 - 192.168.1.150
DHCP Server 2 range 192.168.1.151 - 192.168.1.200

both servers have the same gateway, dns, wins, etc setup so when a
workstations say I want an IP it grabs an ip from either server, this way if
one server is down the other will still issue without conflicting with same
ip's as the pools are total different.


Rgds
Simon.


"blink" <(E-Mail Removed)> wrote in message
news:16A8D77B-D01E-47EC-B077-(E-Mail Removed)...
> Hello,
> Is there a way to have 2 or more Windows DHCP Servers running and specify
> which DHCP server is higher or lower priority?

Hello blink,

You can not prioritize your DHCP server, first come first serve. You can
split your scope over multiple DHCP servers:
http://technet.microsoft.com/en-us/l.../cc739076.aspx

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Hello,
> Is there a way to have 2 or more Windows DHCP Servers running and
> specify
> which DHCP server is higher or lower priority?

Thank you for the response:
I thought I recalled a setting on a Windows networking that would allow
which server to be higher on the list based on configuration like floor 1 and
floor 2, but if this isn't possible what would you do if you had to segregate
remote users from getting the same ip subnet address.
For example,
(Scope 192.168.1.100-150 = local Scope)
(192.168.1.200-250 = Remote)
Remote is connecting from a different router ip address.
Router local = 192.168.1.2 and
(remote = 192.168.1.3)

Another question would be how to block DHCP poisoning?\

"Meinolf Weber [MVP-DS]" wrote:

> Hello blink,
>
> You can not prioritize your DHCP server, first come first serve. You can
> split your scope over multiple DHCP servers:
> http://technet.microsoft.com/en-us/l.../cc739076.aspx
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>
> > Hello,
> > Is there a way to have 2 or more Windows DHCP Servers running and
> > specify
> > which DHCP server is higher or lower priority?
>
>
>

Hello blink,

If you have the need for different ip range place router's between the floors
and use an own subnet for each floor. Also possible if you have switches
that are able to provide VLAN's.

What do you mean with remote users? When they are behind the router 192.168.1.3
there should be a different subnet.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Thank you for the response:
> I thought I recalled a setting on a Windows networking that would
> allow
> which server to be higher on the list based on configuration like
> floor 1 and
> floor 2, but if this isn't possible what would you do if you had to
> segregate
> remote users from getting the same ip subnet address.
> For example,
> (Scope 192.168.1.100-150 = local Scope)
> (192.168.1.200-250 = Remote)
> Remote is connecting from a different router ip address.
> Router local = 192.168.1.2 and
> (remote = 192.168.1.3)
> Another question would be how to block DHCP poisoning?\
>
> "Meinolf Weber [MVP-DS]" wrote:
>
>> Hello blink,
>>
>> You can not prioritize your DHCP server, first come first serve. You
>> can split your scope over multiple DHCP servers:
>> http://technet.microsoft.com/en-us/l.../cc739076.aspx
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>> Hello,
>>> Is there a way to have 2 or more Windows DHCP Servers running and
>>> specify
>>> which DHCP server is higher or lower priority?

Where are these remote users? How do they connect?

If you are using RRAS as a remote access server you configure the
addresses as a static pool in RRAS (and reserve these addresses in your DHCP
scope).

"blink" <(E-Mail Removed)> wrote in message
news:FE2DB359-68CB-4A7B-A44D-(E-Mail Removed)...
> Thank you for the response:
> I thought I recalled a setting on a Windows networking that would allow
> which server to be higher on the list based on configuration like floor 1
> and
> floor 2, but if this isn't possible what would you do if you had to
> segregate
> remote users from getting the same ip subnet address.
> For example,
> (Scope 192.168.1.100-150 = local Scope)
> (192.168.1.200-250 = Remote)
> Remote is connecting from a different router ip address.
> Router local = 192.168.1.2 and
> (remote = 192.168.1.3)
>
> Another question would be how to block DHCP poisoning?\
>
> "Meinolf Weber [MVP-DS]" wrote:
>
>> Hello blink,
>>
>> You can not prioritize your DHCP server, first come first serve. You can
>> split your scope over multiple DHCP servers:
>> http://technet.microsoft.com/en-us/l.../cc739076.aspx
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>
>>
>> > Hello,
>> > Is there a way to have 2 or more Windows DHCP Servers running and
>> > specify
>> > which DHCP server is higher or lower priority?
>>
>>
>>

The real problem is the firewall vpn users DHCP relay to one server, but that
server dishes out ip addresses already assigned. So we repointed relay to
anohter DHCP in hope of Priortizing the addresses. We could block the other
ip addresses from the DHCP request if that is possible through ports?

"Bill Grant" wrote:

> Where are these remote users? How do they connect?
>
> If you are using RRAS as a remote access server you configure the
> addresses as a static pool in RRAS (and reserve these addresses in your DHCP
> scope).
>
> "blink" <(E-Mail Removed)> wrote in message
> news:FE2DB359-68CB-4A7B-A44D-(E-Mail Removed)...
> > Thank you for the response:
> > I thought I recalled a setting on a Windows networking that would allow
> > which server to be higher on the list based on configuration like floor 1
> > and
> > floor 2, but if this isn't possible what would you do if you had to
> > segregate
> > remote users from getting the same ip subnet address.
> > For example,
> > (Scope 192.168.1.100-150 = local Scope)
> > (192.168.1.200-250 = Remote)
> > Remote is connecting from a different router ip address.
> > Router local = 192.168.1.2 and
> > (remote = 192.168.1.3)
> >
> > Another question would be how to block DHCP poisoning?\
> >
> > "Meinolf Weber [MVP-DS]" wrote:
> >
> >> Hello blink,
> >>
> >> You can not prioritize your DHCP server, first come first serve. You can
> >> split your scope over multiple DHCP servers:
> >> http://technet.microsoft.com/en-us/l.../cc739076.aspx
> >>
> >> Best regards
> >>
> >> Meinolf Weber
> >> Disclaimer: This posting is provided "AS IS" with no warranties, and
> >> confers
> >> no rights.
> >> ** Please do NOT email, only reply to Newsgroups
> >> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
> >>
> >>
> >> > Hello,
> >> > Is there a way to have 2 or more Windows DHCP Servers running and
> >> > specify
> >> > which DHCP server is higher or lower priority?
> >>
> >>
> >>
>