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Xref: sserve comp.unix.bsd.misc:68 comp.unix.bsd.freebsd.misc:1315 comp.unix.bsd.netbsd.misc:384 comp.protocols.tcp-ip:36528 Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msunews!uwm.edu!vixen.cso.uiuc.edu!howland.reston.ans.net!Germany.EU.net!EU.net!nova.puug.pt!silicon.eppet.pt!silicon.eppet.pt!not-for-mail From: jcnc@silicon.eppet.pt (Joao Neves Cabral) Newsgroups: comp.unix.bsd.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc,comp.protocols.tcp-ip Subject: Re: Building network with private IP addresses Followup-To: comp.unix.bsd.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc,comp.protocols.tcp-ip Date: 23 May 1995 19:32:18 +0200 Organization: EPPET Lines: 45 Message-ID: <3pt672$sfd@silicon.eppet.pt> References: <Pine.BSD.3.91.950523115231.24916B-100000@brc.minsk.by> NNTP-Posting-Host: silicon.eppet.pt X-Newsreader: TIN [version 1.2 PL2] Alexey Demianenko (a.d.@brc.minsk.by) wrote: : Hello ! : My company is going to attach to its network other : organizations to use simple IP client-programs for : Windows (WinFTP, Netscape, etc.) there. : To my mind this is a very bad idea to give them : IP-addresses (class 'C') of my network area. : 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). Connect your server to the outside world using an oficial recognizable IP address (the server would have at least two IP numbers, the public and the private one). TCP/IP applications from DOS would only have access to the inside network. Install CERN's httpd with proxy support on your server. Configure DOS workstations netscapes to query the proxy server, and you have worldwide WWW, Gopher, Wais, FTP, ... on these boxes with Netscape without having them on the net. You can use other browsers such as Mosaic which also support proxy. You can then install pop3 and client-based programs to use email. You can use FreeBSD for doing this with very good performances (I have it set up like this, and I'm really happy with it). rgds, Joao.