*BSD News Article 44398


Return to BSD News archive

Xref: sserve comp.unix.bsd.misc:70 comp.unix.bsd.freebsd.misc:1322 comp.unix.bsd.netbsd.misc:387 comp.protocols.tcp-ip:36531
Newsgroups: comp.unix.bsd.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc,comp.protocols.tcp-ip
Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!yarrina.connect.com.au!melba.bby.com.au!gnb
From: gnb@bby.com.au (Gregory Bond)
Subject: Re: Building network with private IP addresses
In-Reply-To: jcnc@silicon.eppet.pt's message of 23 May 1995 19:32:18 +0200
Message-ID: <GNB.95May25101253@dame.bby.com.au>
Followup-To: comp.unix.bsd.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc,comp.protocols.tcp-ip
Sender: usenet@bby.com.au (news READER id)
Nntp-Posting-Host: dame
Organization: Burdett, Buckeridge & Young Ltd., Melbourne, Australia
References: <Pine.BSD.3.91.950523115231.24916B-100000@brc.minsk.by>
	<3pt672$sfd@silicon.eppet.pt>
Date: Thu, 25 May 1995 00:12:53 GMT
Lines: 29

In article <3pt672$sfd@silicon.eppet.pt> jcnc@silicon.eppet.pt (Joao Neves Cabral) writes:

   : I'd like to give them private IP-addresses. Does
   : someone know what the software I have to use to build
   : such network with gateway that works with both private
   : and external address areas ?

   You can for example:

   Give private IP addresses to the DOS boxes (and other computers that
   you don't want on the net). Check the RFC (which I can't remember the
   number right now) for the oficial private IP numbers (these numbers
   shouldn't be routed in the Internet, so there is no risk of
   conflicting with other existing ones).

RFC 1597.  The reserved internal numbers are
        10.0.0.0        -   10.255.255.255
        172.16.0.0      -   172.31.255.255
        192.168.0.0     -   192.168.255.255

(i.e. 1 class A address - the old ArpaNet address!!, 16 Class Bs, and
256 class Cs.)

Greg.
--
Gregory Bond <gnb@bby.com.au> Burdett Buckeridge & Young Ltd Melbourne Australia
  The "typical user" couldn't spell C1 if you spotted him a letter and
  offered to sell him the digit for a reasonable price. 
	-- Casey Schaufler (<casey@orange.engr.sgi.com>), on C1 secure UNIX OS