[syslinux] Followup to "pxe weirdness" in syslinux archives

[H. Peter Anvin]

wjoneill at checkfree.com wrote:
> The machine I'm trying to boot is on a VMWare ESX 2.5 server. I'm using 
> dhcrelay on a CentOS box (dhcp-3.0.1-58.EL4) on the same subnet to forward 
> requests to my DHCP server on a Gentoo box (dhcp-3.0.3). I'm running 
> atftp-0.7 on it as well. I don't see any connections to the tftp server 
> but I suspect that's because it's trying to use the dhcrelay server as the 
> default gateway since that's what shows up first in the gateway IP output 
> on the client.
> 
> Here's what booting the PXE client looks like. 10.196.7.98 is the dhcrelay 
> machine, 10.196.1.21 is the DHCP server, 10.196.4.1 is the default gateway 
> for this subnet:

Could you capture packets between the server and the relay and see what 
they look like?

Either way, it sounds like a bug in either dhclient or dhcpd...

There is also a workaround I put into pxelinux which was intended to 
support the Microsoft network boot disk, which of course (being a 
Microsoft product, after all) was broken, which probably should be removed.

	-hpa