packet dumping for ipfw

[Andriy Gapon]

I remeber reading proposals for including full packet dump capability 
into ipfw. Recently I have stumbled upon this utility:

http://cns.utoronto.ca/~pkern/stuff/ipfwpcap/

And it is quite a useful small program. I think it is worthy of 
including into our ports collection, or maybe even into the base system 
support for ipfw (no additional dependcies).

-- 
Andriy Gapon