In this post, I would be discussing about DHCP Audit logging and how to tweak it to your specific situation. DHCP Audit logging can be customized using the following parameters: 1) The directory path in which the DHCP service stores audit log files...

Reservation Manager: Reservations are a critical feature in the DHCP server. Reservations’ are generally used for centralized static IP address assignment for critical machines. This way the IP address of the critical machines which serves critical functions...

I got a couple of questions from a collegue regarding configuring DHCP server from a client machine. Before you can configure the DHCP server from a client machine like XP through netsh or MMC, you need to install something. Please refer: http://blogs...

How to programmactically set/view the DNS settings that we set in the DNS tab of the Server/Scope/Reservation property page? Before we investigate how to retrieve this information, let me first explain to you that this information is persisted as a DHCP...

Question: How can I change the threshold value for firing of event 1020. Event 1020 fired by the DHCP server is fired whenever the amount of free addresses in a scope is less than 80%. E.g: Event Type: Warning Event Source: DhcpServer Event Category...

The following is a question i received from one of the internal groups and my answer to the same. I hope you find the information usefull. Question: I am trying to configure options to be applied specifically to workstations that make a vpn connection...

Hi all, I got a VS.NET solution for the sample DHCP server callout DLL. I have shared it to the world here: http://www.geocities.com/anto_rocks/DHCPCalloutDL.zip . Please let me know of any copyright issues as i do not know who wrote this code. I suppose...

Hi all, This post is regarding an issue that plagues the Windows Server 2003 SP1 on Itanium 64 platforms. The problem is that the netsh export/import commands fail on these cases with the following error: DHCP Server import and export are allowed on...

Question: I have a customer that has 5 DHCP servers that host many scopes. The customer wants to know of a way to script changing the lease duration on the advanced page of the properties of the scope (because they also have Bootp clients). Anybody have...

Hi all, The person (Balint Toth) who gave the contents of the previous post pointed out this link. This link really good description of the DHCP technology. A must read i must say: http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library...

Hi all, I found this pretty useful content in one of our internal DL's. I thought it should be available more widely. The following describes what it takes to get a address lease from the DHCP client. It describes the various steps taken by the...

In this post, I am going to talk about an interesting way to manage your Windows Servers. One of the things that would certainly be a good thing to have is the freedom to use your desktop environment to monitor and configure your servers. The advantages...

The best Server OS just got better! http://www.microsoft.com/downloads/details.aspx?familyid=22CFC239-337C-4D81-8354-72593B1C1F43&displaylang=en The Windows Server 2003 Service Pack1 RTM's.

In this post, I am going to talk about how to set the lease time for a given scope in the DHCP server through netsh command-line. The command is a little unintuitive considering the fact that you won't be mentioning anything about lease time in the command...

In this post, I am going to discuss about the various ways by which you can enumerate all the client leases of the DHCP server. The reasons why you might want to do this can be many: You might want to do this when we want to have a single list of all...

One last reminder...... Enter here: http://www.microsoft.com/technet/community/chats/chatroom.aspx Date: 3/3/05 Today! Time: 9:30 – 11am PST. Join us to discuss tips, techniques and best practices to Configure and Deploy DHCP with Windows Server 2003...

The problematic scenario is the following: There are two DHCP servers serving the same set of subnets. For each of the subnets which is being served by both the servers there are two scopes one for each server. The scopes are configured in a way that...

Ah now for the best part. I had always wanted to test this callout API thing. This is perhaps the most powerful way to leverage your Windows DHCP server. With the DHCP server callout, in a way, the whole DHCP server source code is before you for you to...

Hi all, My team which is involved in the development of DHCP service is preparing for a upcoming chat session titled: Configuring and Deploying DHCP with Windows Server 2003, Part 3. Date: 3/3/05 Time: 9:30 – 11am PST. Join us to discuss tips, techniques...

Fundamentally vendor classes were introduced to re-use the option id’s in a vendor specific way. Since these are options specific to a given vendor and their scope is very limited to that vendor, it cannot afford to have a option in the list 1-255 as...

Today when I entered my office, the first thing that happened was the admin for our lab was asking me to debug an issue in which the DHCP server which doles out IP Addresses in our lab was out of addresses. This prevents the DHCP clients from joining...

Documentation related to Windows DHCP Server and Client. 1) Windows Server 2003 a. Windows Server 2003 Main Technical Reference: This link has information about: I. Checklists for installing the service II. Best Practices...

Many network administrators would like to know the instantaneous load on their DHCP servers. This is possible on Windows Server 2003. The downside is that this cannot be done directly via the GUI or the net shell commands. You can go to the perfmon by...

Hi all, My team which is involved in the development of DHCP service is preparing for a upcoming chat session titled: Configuring and Deploying DHCP with Windows Server 2003, Part 3. Join us on January 20, 2005 to discuss tips, techniques and best practices...

As I am getting a whole lot of DHCP questions from customers on a daily basis, I thought I should compile them all (including the answers of course) into a FAQ and put it here. Any takers?