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Yes, it is for PXE/windown building process.<BR>
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So, "deny duplicate" and "on-lease-per-client" all can not fix the problem.<BR>
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it is big issue for me now. Any way to work around? I mean to let machine keep same ip address after reboot?<BR>
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I can not give all the machines a host stattement. I need them on dynomic range. <BR>
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I guess this is a common problem for everyone who use isc dhcpd and windows, any know how to fix it ether on dhcpd site or windown site?<BR>
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Message: 3<BR>Date: Sat, 28 Jul 2012 08:23:20 +0100<BR>From: Simon Hobson <dhcp1@thehobsons.co.uk><BR>To: Users of ISC DHCP <dhcp-users@lists.isc.org><BR>Subject: Re: lease problem<BR>Message-ID: <p06240803cc3942929f6b@simon.thehobsons.co.uk><BR>Content-Type: text/plain; charset="us-ascii" ; format="flowed"<BR> <BR>Julie Xu wrote:<BR> <BR>>I get complain about new machines. the problem is :<BR>> when new machine come online first time, it get one ip <BR>>address. when the machine reinstall company image and reboot, even <BR>>it is in 10 minutes time, it get another ip address.<BR> <BR>let me guess, the company image is Windows, and the <something else> <BR>booted before that is not Windows ?<BR> <BR>It's most likely that the first system booted does not send a <BR>Client-ID - this is the default for pretty much everything other than <BR>Windows.<BR>Then when the system is booted with Windows, a Client-ID is used.<BR> <BR>The ISC server uses the Client-ID as the primary database key if one <BR>is supplied, and only falls back to the MAC (hardware) address if <BR>there is no Client-ID. So the two systems are different clients as <BR>far as the server is concerned.<BR> <BR>There used to be some patches that would "fix" this, but I've not <BR>heard of them for a while and I've no idea if they are maintained. If <BR>not maintained, they wouldn't work (I assume) against the current <BR>versions.<BR> <BR> <BR>But the obvious question is does it actually matter ?<BR> <BR>-- <BR>Simon Hobson<BR> <BR>Visit <A href="http://www.magpiesnestpublishing.co.uk/" target=_blank><FONT color=#0068cf>http://www.magpiesnestpublishing.co.uk/</FONT></A> for books by acclaimed<BR>author Gladys Hobson. Novels - poetry - short stories - ideal as<BR>Christmas stocking fillers. Some available as e-books.<BR> <BR><BR> </div></body>
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