Networking/routing question

Kayvan Aghaiepour Sylvan (kayvan@sylvan.com)
17 Dec 1998 16:54:43 -0000


Hi everyone,

I've got a small block of IP addresses assigned to me by my
ISP. Historically, I've used PPP to connect all my machines together
(PPP over direct serial links!) and that way each of them have their
own IP address. I use my Linux box as the gateway and firewall out to
the net.

For example, I have:

[Win95 Machine] [Linux]
IP: 204.153.195.5 <--- PPP direct link ---> 204.153.195.1 <--- PPP ---> ISP

I've recently put in a local ethernet setup between all my machines,
so now, in addition to the above setup, I have:

[Win95 Machine] [Linux]
IP: 192.168.0.2 <--- Ethernet -------------> 192.168.0.1

What I want to know is how to eliminate the direct link between the
Win95 machine and my Linux box and still let the Win95 machine have
its own assigned IP address.

Something like this:

[Win95 Machine] [Linux]
IP: 204.153.195.5 <----- Ethernet ---------> 192.168.0.1
^
|
v
204.153.195.1 <--- PPP ---> ISP

In the last scenario, ideally my Linux box would transparently move
traffic destined to/from the Win95's static IP to the ethernet IP
assigned to it for my local network.

How can I set this up?

Anyone have any ideas?

I don't think IP masquerading is the solution, since I'd like the
Win95 box to retain its own IP address.

---Kayvan

-- 
Kayvan Aghaiepour Sylvan |Sylvan Associates         | Proud Dad of:
kayvan@Sylvan.COM        |http://www.isp.net/~kayvan| Katherine Yelena (8/8/89)
(408) 978-1407 PGP OK    |Ask me about Avatar.      | Robin Gregory (2/28/92)
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