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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>This is best answered on EDUCAUSE’s WIRELESS-LAN listserv,
but something in my mind is saying that a certain wireless infrastructure
vendor’s WLAN gear doesn’t like the contents of the DHCPOFFER,
perhaps something about broadcast part?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'>Frank<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
dhcp-users-bounce@isc.org [mailto:dhcp-users-bounce@isc.org] <b>On Behalf Of </b>John
Miller<br>
<b>Sent:</b> Thursday, September 04, 2008 8:26 AM<br>
<b>To:</b> dhcp-users@isc.org<br>
<b>Subject:</b> Vista Issue - Wired vs. Wireless<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I have a rather strange problem that I hope someone can help
me with. This is a general DCHP issue as I am not sure what software the server
is running.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We have several Vista clients that are not able to get
an IP address when trying to connect wirelessly. They connect just fine when
wired. The DHCP server is the same machine. I have done packet captures for
both wired and wireless. I can see the DHCPREQUEST go to the server and I can
see the DHCPOFFER come from the server. The server logs confirm the request and
offer. In each case (wired and wireless) the DHCPOFFER looks identical. The
only difference is that when wired the computer responds to the DHCPOFFER and
does not respond when wireless. I have not seen any correlation with the brand
of adapter, but that could be because we have not looked for one.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The only way we have found to resolve this issue is to do
the Vista registry fix to turn off the broadcast flag in the DHCPREQUEST for
the wireless adapter (KB 928233). While this will work, it means that any
student who wants to connect to the wireless AND has Vista will need to bring
their computer to our office to have the fix implemented.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Has anyone ever seen this issue and found another way to
resolve it?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks - John<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>-----</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>John H.
Miller</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Asst. Dir. of
CNS for Telecom<br>
Muskingum College</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Computer
& Network Services<br>
163 Stormont Street<br>
New Concord, Ohio 43762<br>
Phone (740) 826-8052<br>
Fax (740) 826-8065</span><o:p></o:p></p>
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