PXE boot with 2 NICs

[Daniel Feenberg]

Is it possible to PXE boot from 1 NIC, and then switch all (or most) 
network traffic to the other NIC? I have a Gigabyte motherboard (R182-Z90) 
that won't PXE boot from an OCP or PCI-E NIC (Intel x540 or x550 10GBE 
cards) but only has 1 1GBE motherboard NIC. So I would like to boot from 
the the 1GBE port but use the 10GBE NIC for the heavy traffic to the file 
server.

The message when attempting to boot from the add-in card is:

   !PXE Structure was not found in UNDI Driver Code Segment

which suggests a problem in the MB firmware. I don't really expect 
Gigabyte to offer a solution, but I am thinking that FreeBSD might have a 
work-around. The cards do work if I boot from a CD-ROM. But we have 30+ 
systems, all the others booting PXE and I don't relish having an 
exception.

Daniel Feenberg