From owner-freebsd-questions Fri Jun 30 8: 6:36 2000 Delivered-To: freebsd-questions@freebsd.org Received: from rtso200.ruraltel.net (rtso200.ruraltel.net [24.225.0.1]) by hub.freebsd.org (Postfix) with ESMTP id 7F14837BFB4 for ; Fri, 30 Jun 2000 08:06:32 -0700 (PDT) (envelope-from darryl@osborne-ind.com) Received: from darryl ([24.225.30.239]) by rtso200.ruraltel.net (Post.Office MTA v3.5.3 release 223 ID# 0-67294U14000L4000S0V35) with SMTP id net for ; Fri, 30 Jun 2000 10:06:24 -0500 Reply-To: From: "Darryl Hoar" To: Subject: Network question. Date: Fri, 30 Jun 2000 10:10:24 -0500 Message-ID: <000c01bfe2a5$51ec8700$070101c0@ruraltel.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Importance: Normal Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I am running Freebsd 3.2-release. I am using this machine as a gateway to the internet for my LAN. I am looking at tightening up security and exploring ipfilter. I purchased the book "Building Internet Firewalls" 2nd edition by Zwicky, Coopedr & Chapman. The notation 192.168.8.0/22 is used. How do you interpret this ? what does the last 0/22 mean ? thanks, Darryl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message