Detect rogue DHCP servers

If your clients experience network access problems due to incorrectly leased IP addresses & incorrect options, you probably have a rogue DHCP server on the network. Rogue DHCP servers are those DHCP servers that are misconfigured, unauthorized unknowingly or those that are configured with a malicious intent for network attacks.

Rogue detection tool is a GUI tool that checks if there are any rogue DHCP servers in the local subnet.

Following are the features with this tool:

1. The tool can be run one time or can be scheduled to run at specified interval.
2. Can be run on a specified interface by selecting one of the discovered interfaces.
3. Retrieves all the authorized DHCP servers in the forest and displays them.
4. Ability to validate (not Authorize in AD) a DHCP server which is not rogue and persist this information
5. Minimize the tool, which makes it invisible. A tray icon will be present which would display the status.
6. When you start the program, it queries the AD and lists all authorized DHCP servers.

Read the article source here. Download the program here.