New DHCP scope that created is not appearing on the primary domain controller server

[genesis]

Hi

I have created a new DHCP scope on the Secondary Active Directory domain controller.

This DHCP scope is not appearing on the Primary domain controller.

Will this DHCP scope replicate from the secondary domain controller to the primary domain controller Server?

OR

Do I need to also create the same scope on the Primary domain controller

Any help will be great!!!

Thanks in advance

[psydii]

Have you configured failover? Scope do not replicate or failover unless configured to do so. https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/dn338984(v=ws.11)

[Roberto]

This post seems a little confused. Firstly, we don't really have "primary" and "secondary" AD domain controllers. You might have two AD DCs that you refer to as "primary" and "secondary" but outside of a few edge cases that don't apply here that distincition doesn't really help technically.

 

Next, as for DHCP. Again, this isn't inherently a part of AD as such, so while it is common in small to medium operations to put the DHCP service on the domain controllers, the fact that they are domain controllers and DHCP servers isn't really relevant.

 

If you have the DHCP server role installed on both ADDCs and need to understand how to make DHCP redundant/failover between the two, I'd reccomend a quick read of the microsoft and server fault links I'm pasting below for you:

 

https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/dn338978(v=ws.11)

https://serverfault.com/a/368517

[Davit2005]

Whilst DNS can be AD integrated DHCP not so.

 

As others have said you'd need to setup DHCP failover or do split scopes.

 

I've only ever done split scopes 80/20 so 80% of addresses on one DHCP server and 20% on the other but this is going back to when DHCP failover was not an option without 3rd party appliances or software.

 

https://www.reddit.com/r/sysadmin/comments/bx5ylt/difference_between_split_scope_dhcp_and_simply/