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DCHP splitscope

Posted on 2013-06-28
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Last Modified: 2013-09-30
Hello experts,

I have two DC's with the DHCP role installed. To have some redundancy I've created a 80/20% splitscope according to Microsoft's recommendation.

The weird thing is that (eventhough I've set the delay on dhcp1 to 0 and dhcp2 to 1000ms) dhcp2 leases addresses while dhcp1 is up and running with 46% available addresses.

I've expected that only dhcp1 would lease addresses, unless dhcp1 is down.

Please advice.

Kind regards,

Len
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Question by:KNBsysteembeheer01
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8 Comments
 
LVL 22

Expert Comment

by:Patrick Bogers
ID: 39283815
Hi Len,

Sounds like you have done all the right steps, could you post an image from the fully expanded DHCP MMC ?  (i want to see the (split-scope) extension on both machines)

My first impression would be there has been a fault while setting the DHCP delay on dhcp2.
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Author Comment

by:KNBsysteembeheer01
ID: 39333362
dhcp splitscope
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LVL 22

Expert Comment

by:Patrick Bogers
ID: 39335464
Hi

Could you investigate why there is an exclamation point in the second DHCP scope?
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Author Comment

by:KNBsysteembeheer01
ID: 39335535
Yep, because there is only 1 ipaddress left to give out. And that's why I noticed that my splitscope isn't running well.
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LVL 22

Expert Comment

by:Patrick Bogers
ID: 39339397
Hi again,

I will be on my holidays in two days so i am sorry if i am unable to help you throught the end.
Could you summarize the settings used during deployment? I have a feeling there went something wrong by splitting the scope (or check your DHCP logs if server1 reported to be down)

For a good step by step i could recommend reading this link.
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Accepted Solution

by:
KNBsysteembeheer01 earned 0 total points
ID: 39486201
I've requested that this question be deleted for the following reason:

My settings were correct, now I've rebuild my split-scope and it works. Probably a bug when I build it the first time
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LVL 22

Expert Comment

by:Patrick Bogers
ID: 39486203
Please dont delete this thread, it could be helpfull for others to see a split scope can be setup correct YET not functioning.
Better mark your last answer as the solution providing yourself 0 points (that reminds me of the Eurovision songfestival and dutch scores but hey! offtopic :)
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