Tag: DHCP

Consider the following scenarios: Scenario 1 You have two DHCP servers that are running Windows Server 2008 R2. You set up a split-scope configuration on both DHCP servers. You make identical reservations on both DHCP servers. A DHCP client that reserves an IP address broadcasts a DISCOVER packet and both DHCP servers respond to the […]

Lees verder… from Reservations are deleted incorrectly from a DHCP server that is running Windows Server 2008 R2

While creating a reservation in a DHCP scope (Windows 2008 R2) I received the error mentioned. After some investigation I discovered that Windows 2008 R2 doesn’t allow reservations that are not in the scope, although the subnetmask (for example 255.255.0.0)  is big enough. Changing the subnetmask isn’t an option, so you have to delete and re-create […]

Lees verder… from Error : The specified DHCP client is not a reserved client.

When importing multiple scopes after each other you get the “cannot find the file specified”. It’s a bug (not a feature :-)). Solution is to exit after each import. […]

Lees verder… from The system cannot find the file specified when importing DHCP scope

Use the following steps to migrate the DHCP configuration & settings : Logon to the source (W2K3) server Start the command prompt (cmd.exe) netsh DHCP server 127.0.0.1 export W2K3DHCP all or export W2K3DHCP <scope, e.q. 10.1.1.0> Copy the export file to the other (W2K8) server stop the DHCPSERVER net stop DHCPSERVER or using services.msc delete […]

Lees verder… from Howto : Migrate DHCP scope from Windows 2003 to Windows 2008 Server