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From: Darren Reed <avalon@coombs.anu.edu.au>
Subject: Re: FreeBSD as a cleanwall
To: proff@suburbia.net
Date: Wed, 8 Jan 1997 14:17:04 +1100 (EDT)
Cc: hsu@clinet.fi, hackers@FreeBSD.org, security@FreeBSD.org
In-Reply-To: <19970107230406.6676.qmail@suburbia.net> from "proff@suburbia.net" at Jan 8, 97 10:04:06 am
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In some mail from proff@suburbia.net, sie said:
[..]
> 	fast masking from RMON
> 	my socket credential code
> 
> Bpf primarily exists to cut down kernel<->user space talk, and I
> don't think it is useful elsewhere, except as a slow portable
> low-level substrate. Some RMON (one?) system(s) have support for
> bpf code, but except for ip/tcp options and quantitative decisions,
> fast masks work very well.

What's "fast masking" ?

Darren