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Date: Mon, 07 Jun 2004 12:32:12 -0400
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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To: Marcos Martins <marcos@casadosparafusos.com.br>
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cc: freebsd-ipfw@freebsd.org
Subject: Re: What's is?
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Marcos Martins wrote:
> Hello guys,
> 
> What's "setup", "estabilished", "flush", "keep-state"? I'm not understand
> this commands. Somebody can help me?

The O'Reilly book, "Building Internet Firewalls" would be a very good starting 
place for you to read.  Failing that, consider RFC-791 through -793, which 
talk about TCP and IP protocols...

-- 
-Chuck