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Welcome to vWorld.nl! The personal blog of Xander Oortgiesen. I mostly write about Microsoft Cloud Technology and other topics which interest me. I recently updated this website and would love to hear what you think about it! Do you want to sponsor this website? Send me an email! Stay safe during the corona

DHCP

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

2010-11-17
By: Xander
On: November 17, 2010
In: IT, Uncategorized
With: 0 Comments

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 bothRead More →

Error : The specified DHCP client is not a reserved client.

2010-11-16
By: Xander
On: November 16, 2010
In: IT, Uncategorized
With: 0 Comments

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 youRead More →

The system cannot find the file specified when importing DHCP scope

2010-11-09
By: Xander
On: November 9, 2010
In: IT, Uncategorized
With: 0 Comments

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.Read More →

Howto : Migrate DHCP scope from Windows 2003 to Windows 2008 Server

2010-11-08
By: Xander
On: November 8, 2010
In: IT, Uncategorized
With: 0 Comments

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 stopRead More →

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