Article View: alt.comp.hardware.homebuilt
Article #132Re: Modem Sharing
From: mjcr
Date: Mon, 16 Oct 2000 00:00
Date: Mon, 16 Oct 2000 00:00
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Thomas Baumgartner <tbaumgar@klbg.n.redcross.or.at> wrote in message news:39EAD8E0.8A295F24@klbg.n.redcross.or.at... > I have a 486 machine with a modem connected to the internet. Then there > is my laptop connected to the 486 via parallel nullmodem cable (or > serial nullmodem cable). Now I want to access the internet with the > laptop via the modem connected to the 486. Has anyone tried such a thing > and how can it work. > One Idea is to find a program which runs on the 486 which sends all it > receives at the com-port connected to the laptop to the com-port > connected to the modem and vice versa (so that the 486 with the modem > appears to the laptop as a normal modem). Does anyone know a program > which can do this? > A more elegant version would be the use of a program like Wingate or > so. But the problem is that all these programs (as far as I know) need a > LAN on the private network side. What operating system(s) are you using? Depending on the operating system what you desire could be a trivial task. The laptop and the internet connected desktop(?) computers could be networked via their serial ports or parallel ports. Via the serial ports you could setup a SLIP (serial line IP) or PPP (Point-to-Point Protocol) connection. Via the parallel ports you could setup a PLIP (Parallel Line IP) connection. Either way you would have a local two computer IP network using these interfaces for your network interfaces. The laptop would be setup as an ordinary host and the desktop would be your router. The laptop would not hae to know anything about the modem it would just know that it would have to send all of its network packets to the router which would be its gateway. If you are using dynamic IP address on your rouer to connect to the internet, the router would have to masquerade the packets that it is forwarding from the laptop. Again, depending on the operating system this can be trivial.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112e72,a84dbdb5e7962d07 X-Google-Attributes: gid112e72,public X-Google-Thread: f70d1,a84dbdb5e7962d07 X-Google-Attributes: gidf70d1,public From: <mjcr@mindspring.com> Subject: Re: Modem Sharing Date: 2000/10/16 Message-ID: <8sf8e4$8j6$1@nntp9.atl.mindspring.net> X-Deja-AN: 682101830 References: <39EAD8E0.8A295F24@klbg.n.redcross.or.at> X-Priority: 3 X-Server-Date: 16 Oct 2000 15:55:48 GMT X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Organization: MindSpring Enterprises X-MSMail-Priority: Normal Reply-To: <mjcr@mindspring.com> Newsgroups: alt.comp.hardware.homebuilt,at.tuwien.hardware