How to find the DHCP server on a network

Randall C Grimshaw rgrimsha at
Tue May 19 20:12:09 UTC 2009

On windows clients run 'ipconfig /all' and note the ipaddress of the server. Chase it down.

From: dhcp-users-bounces at [mailto:dhcp-users-bounces at] On Behalf Of John Tabasz (jtabasz)
Sent: Tuesday, May 19, 2009 3:52 PM
To: Users of ISC DHCP
Subject: How to find the DHCP server on a network

One of the networks I am responsible for has a DHCP server that is giving out an address already assigned to another host. I want to locate this DHCP server and investigate it as a rogue server.
Can someone suggest a clean way to identify the DHCP servers on a network?


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