[ipxe-devel] DHCP failing on Intel 82579V Gigabit [8086:1503] after PXE boot]

Richard Moore rich at richud.com
Mon Nov 12 08:47:55 UTC 2012


Attached are the two dumps requested from Robin. 

[The laptop is directly wired to my machine running dnsmasq so only
traffic between them both is there i.e. left it unfiltered] 

This issue occurs also on the WAN with ISC BIND so it isn't dnsmasq.
Also occurs on new HP Elitebook laptops with same hardware.

Version from Nov 2nd (of git clone git://git.ipxe.org/ipxe.git) with no
modifications to source.

I did have a script embedded in the .lkrn to speedup testing which just
sets dhcp options 209/210 and pulls pxelinux.0 down.



From: Robin Smidsrød <robin at smidsrod.no>
To: ipxe-devel at lists.ipxe.org
Subject: Re: [ipxe-devel] DHCP failing on Intel 82579V Gigabit
[8086:1503] after PXE boot
Date: Sun, 11 Nov 2012 19:45:57 +0100

On 08.11.2012 12:26, Richard Moore wrote:
> Intel 82579V Gigabit [8086:1503]
> Failing to see? DHCP server response after PXE boot with undionly.
> So I can only assume it doesn't appear to be seeing the DHCP server
> responses?
> (This machine seems to work ok using ipxe .lkrn from a USB stick
> than PXE boot.)
> Have attached two packet traces from wireshark, one is of the failing
> machine and other is previous laptop model just to show setup is
> working.

If undionly.kpxe fails to communicate, but ipxe.usb/iso/lkrn works, it
would be useful to see a packet capture from the perspective of the DHCP
server when booting each of these two drivers on the same hardware. It
would be most useful if you only include packets that either have the
troublesome machines MAC address set as source or destination (and any
broadcast packets).

With this the developers should be able to pinpoint the difference.
Remember to capture full packets (-s 0 if using tcpdump). Anything else
has limited usefulness for debugging.

Also mention which version you were using and if you had any
non-standard configuration options set in src/config/*.h or on the make
command line.

-- Robin

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