🚀 go-pugleaf

In <4ivh8r$e7n@bell.maths.tcd.ie>, tim@maths.tcd.ie (Timothy Murphy) wrote:
> mwm@contessa.phone.net (Mike Meyer) writes:
> >It's been answered properly here a number of times. You were to busy
> >complaining about your not understanding the answer to notice that.
> >The simple solution is:
> I've understood perfectly what you and others have said.
> (The answers have all been different.)

The ones I've seen have only been different in the way that one and 1
are different.

> >1) Get an IP address from your ISP for the second machine. Configure
> >	the machine to use that address.
> >2) Enable GATEWAY (apparently a kernel recompile) on the machine with
> >	SLIP on it.
> >That's really all there is to it.
> However, I am not convinced that you or any of the other gurus
> have actually tried what you say.

I've done it. Multiple times, in different configurations, using
different gateway platforms.

> For example, with your "simple" solution,
> what would distinguish the 2 networks (Ethernet & SLIP)?

To answer the question you asked: they are on different physical
media. To answer the question you were trying to ask: the two
interfaces on the gateway host have different IP addresses.

As a bonus, I'll point out that multiple SLIP interfaces on a single
host can share a single IP address, and are distinguished by the IP
address of the destination. I'll confess to not having tried this
particular configuration on a NetBSD box, but it works on other
BSD-based IP stacks.

> Would you have an /etc/networks entry?

You could. Not required.

> In any case, my understanding of the original question
> was that the poster did not wish to register
> a second IP address;
> his question was whether he could route packets
> from machine 2 through machine 1 to the Internet,
> using SLIP with the static or dynamic IP address assigned by his ISP.

You may or may not have been right. I pointed out that the answer to
this question was apparently YES (after all, at worst it's a SMOP, and
another poster reference his writeup on this subject), but that this
was no longer a "simple" question, and the operation was probably more
complicated than changing ISPs to one that didn't object to your
registering your own network. Of course, if you're coat-tailing on a
school or employer, that would involve actually spending money.

> [I wish people who do not in fact know the answer to questions
> would not pretend that they do.]

And I wish that people who do not have sufficient understanding of a
problem to know if an answer was correct would not pretend that they
do.

	<mike