Re: Setting up network

Ken D'Ambrosio (kend@Summa4.COM)
Tue, 8 Sep 1998 08:27:13 -0400 (EDT)

Well, you don't specify what Waxman and Tux are running, but (since this
is, after all, a Linux list) I'll assume Linux. If that's the case, then
what you need to do is, indeed, give the Internet its own NIC -- but put
it inside one of your current boxes. For sake of argument, let's say
that you put it in Tux.
1) Tux will now need to route.
2) Tux's default router will be the default router supplied you by
the cable company.
3) Waxman's default router will be Tux.
4) Lastly, and most complicated, since your 192.168.x.x addresses are a
private subnet, while your packets would technically be able to make
it out onto the Internet, the Internet, in turn, would have no idea
how to get them back to you. That means that you'll have to set up
IP Masquarading on Tux, which will translate your outgoing addresses
such that ALL your packets look like they come from Tux. That's been
mentioned in several posts recently, but I suggest reading the FAQ
(HOWTO?) before continuing.

Hope that helps,

Ken D'Ambrosio
Sr. SysAdmin,
Summa Four, Inc.

On Tue, 8 Sep 1998, Chris Hoover wrote:

> I'm in need of some advice in setting up my network at home. Here is
> what I have so far.
>
> HUB
> / \
> / \
> Waxman Tux
>
> Internet----
>
> My internet connection (from my cable provider) is 24.4.120.6. Waxman
> and Tux are my two machines with ip's of 129.168.1.1, .2 respectivly.
> Anyway, can I take the internet straight into my hub, or must I run in
> through it's own nic?
>
> If I can run it through the hub, what sort of security implications does this
> cause?
>
> I plan on using ip masq on the internal network.
>
> Finally, I've obtained the domain "choover.ml.org" for my ip. With this
> configuration, would it be possible for me to allow access to both
> machines from the net (i.e. my being able to telnet to both machines
> when I'm at work)?
>
> TIA,
>
> Chris
>
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