Very Computer

I am a student at a University, and I am running Linux at home.  My
roommate is running OS/2, and we are networked through PPP and a
Null Modem.  For this small network, we have assigned ourselves
dummy IP address:

    ariel (Linux) - 111.111.111.1
    nala  (OS/2)  - 111.111.111.2

ariel is also the one who is connected to, via dial-up PPP, the
University's computer system.  ariel has a dynamic IP address.

Now, I want to get nala routing through ariel to do such things
as telnet, ftp, and netscape.  But, it doesn't work yet.  For whatever
reason, nala can't connect to anyone in the outside world, jusy
ariel.

Any suggestions?

---
Drew Hamilton      UW Math/CS      http://calum.uwaterloo.ca/~awhamilt
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"Je veux m'envoler dans le bleu de l'espace..."   - Belle, lBelB, 1991

Quote:Drew Hamilton writes:

Now, I want to get nala routing through ariel to do such things
as telnet, ftp, and netscape.  But, it doesn't work yet.  For whatever
reason, nala can't connect to anyone in the outside world, jusy
ariel.

Any suggestions?

I say:

You are using ariel as a gateway. Have you compiled its kernel with the
IP-forwarding option ?

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You can't do this by yourself at your end.  To do what you want,
you need to get an "official" network number from the NIC.  Hint:
it'll be a class C network, not one starting with "111."  Also,
you'll need a domain name, again registered with the NIC.

But before you can get the domain name, you'll need two name
servers who agree to translate your domain name to an IP address,
so others can find you.  One of these name servers must be off
your premesis, I believe.  The registration of the domain name,
and the assignment of the network address don't cost anything.

After this, you'll have to get your University's network admins
to route to your network.  They may or may not agree to do this.
Most ISP's charge extra, a lot extra, for routing.  If you have
any friends in charge of anything, it's a lot easier.

By the way, it turns out that 111.0.0.0 is a reserved network
address.  You won't get any routing to that network at all.
Try "whois 111.0.0.0" while you're connected.
--

No, all he needs is another IP address from his university.  He
definately *does not* need a domain name for connectivity.  Domain
names have nothing at all to do with routing packets.

Quote:>After this, you'll have to get your University's network admins
>to route to your network.  They may or may not agree to do this.

This is true.  The extra IP address he gets from the university
will *have* to have a route set up in the terminal server.  This is
probably a very impractical thing for the university admins to set
up, especially since a dynamic IP address is being assigned when he
dials in.  If you could setup your own dialup facility on campus,
you could handle this yourself.  This is what I have done, regard
http://www.ee.msstate.edu/~simmons/apartment.html for information,
technical notes, and an academic paper I have written.

The more practical solution in your case may be to keep your
network situation like it is, using a "private" IP network at home
that the outside world cannot see, and make the internetted
machine into a proxy server for the non-internetted machine.
This involves running proxy daemon software on the internetted host.
This will allow the non-internetted host to access WWW, etc., through
the internetted host without actually having to be "on the net".

There might also be some similar alternatives, like the 'slurp'
software.

Hope this helps.
David

--

Mississippi State University Electrical and Computer Engineering
Visit my home page!  http://www.ee.msstate.edu/~simmons