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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">I didn’t but putting on seems to have solved problem-
thanks. I guess my gpxe script is trying to hit the network before the
switch gets done with spanning-tree after the interface first comes up (it
takes about 30 seconds on these switches.) I’m going to see if I
can put a timing delay in my gpxe script to allow for this.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Ben<o:p></o:p></span></p>
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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"">
gpxe-bounces@etherboot.org [mailto:gpxe-bounces@etherboot.org] <b>On Behalf Of </b>Clive
Eisen<br>
<b>Sent:</b> Monday, May 17, 2010 1:40 PM<br>
<b>To:</b> Ben Derstine<br>
<b>Cc:</b> gpxe@etherboot.org<br>
<b>Subject:</b> Re: [gPXE] Strange ARP problem with gpxe 1.0.0+<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On 17 May 2010, at 17:45, Ben Derstine wrote:<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hi,
I’m using gpxe 1.0.0+ and it’s not working in certain cases where
it tries to ARP for the default gateway I configured for it via a script.
After a lot of head scratching I finalized sniffed the traffic using Wireshark
to see exactly what it was doing when it didn’t work versus what it was
doing when it did work. I’ve included the two ARP requests
below. It works when I plug the computer that I’m using gpxe
for into a little Netgear switch which then connects to a Cisco 2960.
When I plug it directly into the 2960 it doesn’t work.
The ARP request packets from gpxe look slightly different between these two
scenarios (top one works):<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"><o:p> </o:p></p>
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<p class="MsoNormal">Have you got 'spanning-tree PortFast' set on the port on the
2960?<o:p></o:p></p>
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