Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 6 Feb 1996 22:55:44 +0100
From:      Kerjan Herve <hke@jazz22.gna.org>
To:        freebsd-questions@freebsd.org
Subject:   SUMMARY: Connect 2 FreeBSD box via serial line
Message-ID:  <199602062155.WAA01122@jazz22.gna.org>

next in thread | raw e-mail | index | archive | help
  Hello,

  Thanks to Mark Diekhans <markd@grizzly.com> and the others who
responded to this questions:

>  Freebsd Handbook only describe the user ppp configuration with a
>modem.
>
>  Could you send me your files for a ppp configuration via a laplink
>for your server and clients (/etc/ppp/ppp.[conf|linkup|secret],
>/etc/ttys, ...) ?

  The Replies:

>From Mark Diekhans <markd@grizzly.com>
--------------------------------------

I can do this, but my laptop is not here right now.  However, let me
suggest getting a laplink parallel cable because its easier to
configure and its a LOT faster.  It should only cost you about $9.00.
There is a driver that sends TCP/IP over bi-directional parallel ports.
If you are getting messages something like:

Jan 17 23:50:20 osprey /kernel: lpt0 at 0x378-0x37f irq 7 on isa
Jan 17 23:50:20 osprey /kernel: lpt0: Interrupt-driven port
Jan 17 23:50:20 osprey /kernel: lp0: TCP/IP capable interface

you should be set kernel wise.

You need to create entries in /etc/host assiging each machine a fake IP
address.  I have given them 10.0.0.1 and 10.0.0.2.  You can also configure
named if you want, but start with /etc/hosts.  See documentation in that
file.

For each machine, you need to have /etc/sysconfig contain the information to
configure the interface.  On my 10.0.0.1 machine, it has:

network_interfaces="lo0 lp0"
ifconfig_lo0="inet localhost"
ifconfig_lp0="inet 10.0.0.1 10.0.0.2"

in the network interfaces area.  The addresses are reversed on the other
machine.

Reboot both machines and ping.

>From /sys/i386/isa/lpt.c
------------------------

 * Connect the two computers using a Laplink parallel cable to use this
 * feature:
 *
 *      +----------------------------------------+
 *      |A-name A-End   B-End   Descr.  Port/Bit |
 *      +----------------------------------------+
 *      |DATA0  2       15      Data    0/0x01   |
 *      |-ERROR 15      2               1/0x08   |
 *      +----------------------------------------+
 *      |DATA1  3       13      Data    0/0x02   |
 *      |+SLCT  13      3               1/0x10   |
 *      +----------------------------------------+
 *      |DATA2  4       12      Data    0/0x04   |
 *      |+PE    12      4               1/0x20   |
 *      +----------------------------------------+
 *      |DATA3  5       10      Strobe  0/0x08   |
 *      |-ACK   10      5               1/0x40   |
 *      +----------------------------------------+
 *      |DATA4  6       11      Data    0/0x10   |
 *      |BUSY   11      6               1/~0x80  |
 *      +----------------------------------------+
 *      |GND    18-25   18-25   GND     -        |
 *      +----------------------------------------+
 *
 * Expect transfer-rates up to 75 kbyte/sec.

  That's all.

	Herve.



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199602062155.WAA01122>