Re: how to "join" LAN with plip link?
- From: ibuprofin@xxxxxxxxxxxxxxxxxxxxxx (Moe Trin)
- Date: Mon, 25 Dec 2006 16:46:29 -0600
On 25 Dec 2006, in the Usenet newsgroup comp.os.linux.networking, in article
<4v96b5F1ag7v8U1@xxxxxxxxxxxxxxxxxx>, Zhang Weiwu wrote:
Hello. I have successfully connected two computers through plip0 (don't
know if current speed of 3kB/s is reasonable).
-rw-rw-r-- 1 gferg ldp 46049 Apr 26 2001 PLIP
That's a mini-howto, and section 1 states:
The speed achieved depends completely on your hardware (CPU and
parallel port) and system load, in general it may be from 5 Kb/sec up
to even 40 Kb/sec.
but you may also want to have a look at the "Linux Network Administrator's
Guide" (nag2 at any LDP mirror, or http://tldp.org/guides.html). It has a
whole chapter on PLIP.
The 'server' has a parallel port and is connected to LAN, the 'client'
have a parallel port and is not connected to LAN, I guess this is typical.
Now how can I make this 'client' join the LAN?
The nag2 should help. Either you need to configure the "server" as a router,
and have all systems know to send packets to the router as a gateway to the
LAN (or client), or you need to configure the server to do 'proxy-ARP'. In
the first method, the 'client' and LAN hosts would be on different networks
(such as 192.168.1.0/24 for the LAN, and 192.168.2.0/24 for the client),
while the proxy-ARP method would require client and LAN to be on the same
network range. See also
-rw-rw-r-- 1 gferg ldp 19372 Aug 28 2000 Proxy-ARP-Subnet
another mini-howto.
For client to access LAN I need to set up nat on the 'server',
Not really - proxy-ARP is much simpler.
Can this method be used on Linux through alternative configuration? I mean
can we configure a Linux host to act almost the same way as described
above?
You're making it much more complicated than necessary, but in essence you
are talking of proxy-ARP. Please remember that a "young" as Linux is, it
was doing IP networking long before microsoft invented computers, or what
ever they claim to have done. IP actually goes back to 1981, when microsoft
was yet to discover the concept of 'directories' in MS-DOS 1.1.
So what would you suggest / recommend? I know this issue is perhaps not
worth solving because we do have NIC everywhere, I am purely interested to
find out a solution.
PLIP is obviously not going to be as fast as Ethernet, but this is an
alternative that will work. I don't bother using DHCP, because my
systems remain on the same network all of the time, and it's easy to
use a static setup.
Old guy
.
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- From: Zhang Weiwu
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