Tip of the Day: Windows Server 2016 DHCP: Combatting DDNS Registration Failures

Today’s Tip… Dynamic DNS name registration failures or delays is a common problem in environments where the updates are managed by a DHCP server.  Common causes for the problem include misconfigurations, specifically the failure to create a required reverse-lookup zones, which result in the DHCP servers update queue getting backed up. Both Windows Server 2016…

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Tip of the Day: What's new in the Windows Server 2016 DHCP Server Service

Today’s Tip… NAP support was introduced to the DHCP Server role with Windows Server 2008 and is supported in Windows client and server operating systems prior to Windows 10 and Windows Server 2016. Though Network Access Protection (NAP) was officially deprecated in Windows Server 2012 R2 the DHCP server role still supported NAP policies. In…

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Tip of the Day: DHCP PBA

Today’s tip… Windows Server 2012 introduces Policy Based Assignment for DHCP. This new functionality allows administrators to better control IP assignment in their environment. Example: Here is a small DHCP scope I created from 192.168.5.1 to 192.168.5.25. Next I created policy for that scope with a condition for MAC addresses starting with 00-15-5D-0A-16 and set…


Tip of the Day: DHCP client and Web Proxy Auto-Discovery

Today’s tip… Starting with Windows 8, the DHCP client requests the Web Proxy Auto-Discovery (WPAD) configuration from DHCP as part of the default parameter request list during DHCP address acquisition.  If the Web Proxy Auto-Discovery option is configured in DHCP, the client will get the WPAD server information during the initial DHCP address acquisition process. …


Tip of the Day: DHCP Policy Based Assignment (PBA)

Today’s tip… In Windows Server 2012/2012 R2, DHCP Policy Based Assignment (PBA) allows an administrator to configure policies based on information in the client DHCP request.  If the client matches the policy, then the client can be provided with IP addresses from a specific range or specific network configurations, such as a specific DNS server. …


Tip of the Day: Replicating Scopes in DHCP Failover

Today’s tip… In Windows Server 2012/2012 R2, DHCP Failover automatically synchronizes leases.  However, configuration changes on one server in the failover relationship do not automatically get replicated to the partner.  Configuration changes can be manually replicated by choosing the “Replicate Scope…” or “Replicate Relationship…” option in DHCP Server Manager.  The configuration from the server where…


Tip of the Day: DHCP Failover

Today’s tip… In Windows Server 2012/2012 R2, DHCP Failover provides standards based lease synchronization between two nodes hosting the same scope. If one server becomes unavailable, clients can get leases from the reachable server. DHCP Failover is an easy to deploy, and easy to manage, solution for high availability and redundancy.