Source MAC address

Hi,=0D
=0D
I have a question concerning libnet 1.1.x and the link-layer interface.=0D
Mike writes in his excellent book:=0D
"The link-layer enables a finer-grained control of packet header values b=
ecause the OS kernel will not touch the packet before it is written out (=
the exception being that some interface code on some UNIX variants will t=
ry to stamp a source MAC address on the packets of the outgoing interface=
; libnet handles this situation on several variants)".=0D
I'm interested in the Linux variants trying to stamp a source MAC address=
. How can I make sure that the kernel does not touch the packets (kernel =
options)? Has it something to do with the HAVE_PACKET_SOCKET flag?=0D
=0D
Thanks in advance.=0D
- gerry=0D
=20