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To: "Jordan K. Hubbard" <jkh@time.cdrom.com>
Subject: Re: FreeBSD as an ISDN Router 
Cc: freebsd-hackers@freebsd.org
In-reply-to: Your message of "Wed, 15 Jan 1997 19:30:03 PST."
		<4883.853385403@time.cdrom.com> 
References: <4883.853385403@time.cdrom.com>  
Date: Thu, 16 Jan 1997 01:59:18 -0700
From: Warner Losh <imp@village.org>
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In message <4883.853385403@time.cdrom.com> "Jordan K. Hubbard" writes:
: People have been
: talking about a more general purpose address translation mechanism for
: years now, but it's still all vaporware. :-)

It is a damn hard problem to do.  Years ago when I was doing work on
TIA, there were all kinds of problems with trying to do this.  You had
to do every protocol that sends IP addresses or ports down the wire.
FTP, RealAudio, talk, irc, ntalk, and a few others all do this and all
do it differently.  No wonder there isn't a general purpose NAT...

Warner