Ipsec bridging on FreeBSD

[Lowell Gilbert]

Kifah Abbad <kifah at prz.tu-berlin.de> writes:

> Hi everyone,
> 
> I am working on my thesis , and i found some difficulties doing some
> tasks of the project on openbsd so i am planning to move to freebsd.I
> want to ask some questions, concerning tasks of the project, and i
> hope someone would confirm or not.
> 
> 1. Does freebsd offer s reasonable way for divert socket? i heard it
> could be done using netgraph...It should be also possible to catch
> ethernet frames (not only IP), since this would be happening on an
> ipsec bridge.
> 
> 2.This brings me to following point: Is there a similar solution for
> ipsec-bridging, like explained in the example of "man brconfig" of
> openbsd?
> 
> 3.IS it possible to do MAC-Adress spoofing on a freeBSD machine?

Sounds like you want the Berkeley Packet Filter.
  http://www.freebsd.org/cgi/man.cgi?query=bpf

Should be available on OpenBSD too, if my memory serves.