[syslinux] Syslinux 4.10-pre20

[Vanush Misha Paturyan]

On Fri, 25 May 2012 12:50:17 +0200 Geert Stappers
<stappers at stappers.nl> wrote:

> On Thu, May 10, 2012 at 11:04:00PM -0700, Shantanu Gadgil wrote:
> > 
> > Hi,
> > Any update on this? Does the traffic dump help?
> > Is it even correct? (I am not familiar with using tcpdump much)
> 
> Both tcpdumps could be further analyzed. So kno
> 
> The v406pre3.dump looks fine.
> 
> The v410pre20.dump his this interresting, perhaps strange pattern:
> 
> <snipped the tcpdump from here: misha>
> 
> .241:49153 asks .239:69 for file
> .239:40073 replies .241:49153 with file not found
> .241 informs .239 that it is "unreachable"
> 
> 
> To me it seems that the 4.10 pxelinux and the PXE stack on the Dell
> don't mix that well.

I'm jumping in here, maybe it has been discussed before, but is
10.209.170.241 assigned to an actual hardware NIC on the same network
as the server? The ICMP "udp port 49153 unreachable" feels like a
firewall, maybe NAT translator, not being happy about response to
initial UDP packet from port 49153 to port 69 being answered with a UDP
packet from port 40073. (as UDP is stateless protocol NTP translators
use some "magic trickery" to figure out what comes back in response to
what). What port number responses in v406pre3.dump are coming from?

Misha.


-- 
Vanush "Misha" Paturyan
Senior Technical Officer
Room 1.37
Computer Science Department
NUI Maynooth