[gPXE] Strange ARP problem with gpxe 1.0.0+

[Clive Eisen]

On 17 May 2010, at 17:45, Ben Derstine wrote:

> 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):



Have you got 'spanning-tree PortFast' set on the port on the 2960?
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