pxe boot: BTX halted

[Norbert Koch]

Hello,
I am desperately trying to get pxe boot running.

The client machine is a PentiumMMX/166MHz which successfully
boots FreeBSD from hard disk. It is connected to the server
machine's second ethernet card xl0 (3com).
I can boot the client with etherboot from a floppy withoudt problems,
but usually have no floppy connected to the machine.

When I run ethereal on the server machine I see successful
dhcp and tftp requests. No obvious problems.

The client machine comes up with "Intel UNDI PXE-2.0 (build 074)".

PXEBOOT usually crashes with int 6 or int d.
CS:EIP points to nothing: ff ff ff ff ...
The final message is: 'BTX halted'.

Any idea?

Thank you,

Norbert Koch