[syslinux] Consistent but intermittent DHCP problems after pxelinux loads kernel.

[Geert Stappers]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, Nov 18, 2005 at 01:33:31PM -0800, Eli Stair wrote:
> 
   <snip/> 
> The systems are showing one very improper behaviour:
> 
> Some significant portion of the time the DHCP OFFER is never REQUEST'ed, 
> but DISC's and OFFERs keep flowing until it times out.  I've got packet 
> captures of both successful and unsuccessful runs, with no difference in 
> the decode results.  On failure, the client keeps requesting and 
> ignoring the immediate offer that should be accepted is blindly ignored, 
> and the 4- 8- 16- second retry is stepped through while the OFFER 
> immediately comes through.
> 
> Looking at packet caps via a hub shared with the client, compared with 
> the server logs shows nothing amiss.  This same exact image is 
> successfully used to network install hardware from another vendor, as 
> well as from a boot CD this same HP hardware.  The problem seems to 
> recurr randomly, sometimes lasting a minute or two, sometimes hours.
> 
> Has anyone seen this or a similar issue on any configuration?  Any 
> suggestions of something further I could try?  Thanks for any input.

To me it seems the receive part does work.
 (possible causes: driver isn't aware of register change,
  interrupt isn't actived or misconfigured )


IIUC, it is the booting kernel DHCP code that fails.

To avoid DHCP in the early phase of start-up,
try IPAPPEND ( http://syslinux.zytor.com/faq.php )


GSt

P.S.

If it works, then contact me off-list for shipping an optron to me.
(I assume(hope?) that hpa has allready been rewarded by those
who use to software he wrote)

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (GNU/Linux)

iD8DBQFDfyVtOSINbgwa/7sRAj1XAJ9vZJLViaTcuEZpFXdS8PN3uNpTQgCfXRN+
Yzw0vHjUClxwwFgZSKTtlQk=
=b40j
-----END PGP SIGNATURE-----