DHCP with failover automatic synchronization issue

Question

Hello!

I have a two node DHCP configuration in failover load balance mode (DHCP_1 and DHCP_2). I create some Allow and Deny filter in DHCP_1, but when I force manually replication, the filters do not replicate to DHCP_2. I found a script(DhcpFailoverAutoConfigSync) which can be resolve this issue, but it is not working. The DHCP server os is Windows Server 2019. The script was tested on only Windows Server 2012, should it be the problem with the script? It is not compatible with Windows Server 2019?

This is the script what I tested:
https://gallery.technet.microsoft.com/scriptcenter/Auto-syncing-of-configurati-6eb54fb0

Does it have any solution to automate the synchronization between two DHCP server when I change something in config?

Thanks.

Answer 1

Hi ,

For server configuration, there is no way to sync it. e.g.: server policies and Filters. As a workaround, you can use PowerShell cmdlet to add it:

Get-DhcpServerv4Filter -List Allow -ComputerName myserver.FQDN | Add-DhcpServerv4Filter -Force  

Here is a similar thread discussed before:

syncing dhcp policies between failover hosts

Best Regards,

Candy

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Answer 2

Your answer was very good.

Is there official Microsoft documentation stating that policies and filters are not replicated?

Why is this configuration not synced? What to stop Microsoft from implementing these synchronizations?

Answer 3

@Candy Luo I want to understand why!