A query about API to handle DHCP discovery/offer messages

Asked Apr 01 '13 at 20:50

Active Apr 01 '13 at 20:50

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I am writing a network-based program that needs to discover DHCP servers if existing on the same network segment. Specifically, i need to broadcast the "DHCP Discover" message so that my program knows if there is some server through "DHCP Offer" response message. i researched about this topic, and found some thread that indicates this to be impossible in Windows. However, i wish to know your thoughts about the issue . The language to be used is C++, C#, or Java.

i appreciate your help.

asked Apr 01 '13 at 20:50

Abdullah

It isn't impossible, here: http://stackoverflow.com/questions/2224877/querying-a-dhcp-server-in-c-sharp – Greg Apr 01 '13 at 20:52
1

Why would it be impossible in Windows? If it were, DHCP wouldn't be available for Windows machines.. which obviously is not the case. – Mike Dinescu Apr 01 '13 at 20:53
Is your question whether it's possible? – Drew Dormann Apr 01 '13 at 21:01
What have you tried? What hasn't worked? Open a raw socket, pump messages, receive responses. – Alex Chamberlain Apr 01 '13 at 21:07
raw socket is said to be not possible in Windows due to security reasons in the OS – Abdullah Apr 01 '13 at 21:12
Run as administrator then... – Alex Chamberlain Apr 01 '13 at 21:14
thanks you Alex , Greg ,Drew and Miky for helping ,it works ........using raw socket(as you say Alex it needs administrator privileges) . – Abdullah Apr 04 '13 at 06:27

A query about API to handle DHCP discovery/offer messages

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