From owner-freebsd-isp Sun Sep 24 12:22:20 2000 Delivered-To: freebsd-isp@freebsd.org Received: from jasper.southwind.net (jasper.southwind.net [206.53.103.7]) by hub.freebsd.org (Postfix) with ESMTP id CA3D737B422 for ; Sun, 24 Sep 2000 12:22:13 -0700 (PDT) Received: from jasper.southwind.net (abcjr@jasper.southwind.net [206.53.103.7]) by jasper.southwind.net (8.10.1/8.10.1) with ESMTP id e8OJM8R06993 for ; Sun, 24 Sep 2000 14:22:08 -0500 (CDT) Date: Sun, 24 Sep 2000 14:22:08 -0500 (CDT) From: "Arnold B. Cavazos, Jr." To: freebsd-isp@FreeBSD.ORG Subject: RE: Using 'private net' IPs for WAN Addresses In-Reply-To: <3073B3378589D411B21600508BAF32AA01233F@EXCHANGE> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Here is a great description on why one should not use RFC 1918 addresses for inter-router links: http://www.worldgate.com/~marcs/mtu/ ---------------------------------------------------------- Arnold Cavazos, Jr. abcjr@southwind.net General Manager SouthWind Internet Access, Inc. A OneMain.com Company On Wed, 20 Sep 2000, Nathan Williams wrote: >Considering the shortage of IP addresses under IPv4, I can only think of >good reasons for ISPs using private network addresses. Also, not being >accessible from the Internet can actually be a very good thing for ISPs, as >many of these addresses are routers which need to be secure and have a >minimal level of outside traffic. >Nathan Williams >nathanw@nils.lib.il.us > >> -----Original Message----- >> From: Adrian Gonzalez [SMTP:adrianbsd@globalpc.net] >> Sent: Wednesday, September 20, 2000 1:37 PM >> To: freebsd-isp@freebsd.org >> Subject: Using 'private net' IPs for WAN Addresses >> >> >> Hello everyone >> >> Over the years I've seen several ISPs use 192.168.x.x or other of the IP >> ranges reserved for private networks as WAN adressess for point-to-point >> links on the Internet. >> >> Personally, I've always felt this to be a bad idea, but I can't come up >> with a compelling reason to convince people not to do it. Is there a >> reason not to? or is it just a matter of keeping apples and oranges in >> their respective baskets? >> >> The only thing I can come up with is that you can ping the routers in >> question from outside your own net if you use 'real' IPs. >> >> -Adrian >> >> >> >> >> To Unsubscribe: send mail to majordomo@FreeBSD.org >> with "unsubscribe freebsd-isp" in the body of the message > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-isp" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message