> > 	I'm just curious, which application uses BIOC[GS]HDRCMPLT?
> > 	(allows you to inject layer 2 header on bpf writes)
> > 	Or is it mainly for experiments?  It looks it was added between
> > 	1.39 to 1.40.
>It's for implementing protocols in userspace which require "spoofing"
>the MAC source address... e.g. some Cisco bridge-bridge communication
>protocols, Apollo Netman, etc.

	Yup, I understand what is it for, I was curious about any program
	using this.  Thanks anyway.

itojun