DHCP reservation is not replicated to the DHCP Hotstandby serve

Question

Today, we noticed that DHCP reservation cannot be replicated to the DHCP hot-standby server. And observation is for 10 minutes. We haven’t check the logs only compared the settings of both DHCP servers.

Answer 1

Hi @Doe John ,

Thanks for posting in Q&A platform.

Based on provided information, my understanding is that reservations on DHCP server is not be replicated to the partner DHCP server.

Before we go further, may I know how did you initiated the replication? Is there any error message related to reservation replication?

Please kindly note that reservation replication does not automatically happened between two DHCP server, you have to manually click replicate scope on the DHCP server to replicate the reservations.

Meanwhile, you could use the following PowerShell command to replicate all scope instead of clicking replicate Failover Scope from DHCP console:

Invoke-DhcpServerv4FailoverReplication

If you want to specify the scope that you want to replicate, you might use below command for example:

e.g. Invoke-DhcpServerv4FailoverReplication -ComputerName dhcpserver.contoso.com -ScopeId 10.10.10.0,20.20.20.0

For more details, please refer to the following Microsoft official article:

Invoke-DhcpServerv4FailoverReplication

Best Regards,
Sunny

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