Firewalls: Lower layer firewalls

Firewalls
(April 1996)

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Subject:	Lower layer firewalls
From:	"Marcus J. Ranum" <mjr @ clark . net>
Organization:	V-One Corporation, Baltimore, MD Office
Date:	Tue, 9 Apr 1996 12:02:41 -0400 (EDT)
To:	Firewalls @ GreatCircle . COM
In-reply-to:	<199604080611 . XAA14739 @ miles . greatcircle . com> from "firewalls-digest-owner @ GreatCircle . COM" at Apr 7, 96 11:11:30 pm
Phone:	410-889-8569
Reply-to:	mjr @ v-one . com

amolitor @
 anubis .
 network .
 com (bob)
>	You cannot implement a useful and effective firewall system
>	without being higher-layer aware. 

	I think that's a *REALLY* good way of putting it!

mjr.
[Although, the Ultimate Firewall is not higher-layer aware because
it uses a patented high-assurance DTE technology. DTE stands for
Destroy The Ethernet]  :) :)

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