[syslinux] Cannot chain to another PXE server on the same subnet

[Vieri]

Hi,


I have a Linux server at ip address 10.215.144.7 running DHCP, TFTP and syslinux.

DHCP config contains the following:

next-server 10.215.144.7;
filename "/pxe/syslinux/pxelinux.0";

and the 'default' pxelinux.cfg contains:

LABEL altiris
    MENU LABEL ^7. Altiris
    COM32 pxechn.c32
    APPEND 10.215.144.60::/BStrap/x86pc/BStrap.0

When a PXE client boots in my network it loads the menu from 10.215.144.7.
However, when the user selects menu item 7 the following message is displayed right after the "greeting message" from the second PXE server at 10.215.144.60:

PXEPreZero: Invalid PXE Server list format

Note that the server at 10.215.144.60 is running a proprietary PXE software (Altiris).

Any ideas?
How can I debug this?

As a test, I modified my DHCP server at 10.215.144.7 and replaced the following line:
next-server 10.215.144.60;
(without specifying 'filename')
and the PXE client seems to boot the Altiris menu correctly.

So I don't know what I'm missing.

Thanks,

Vieri