Very Computer

I am trying to connect a DOS machine to a Linux box using PLIP.

Connecting two linux boxes using PLIP is no problem. Everything  works
fine. But DOS to Linux....
Linux side: Kernel 1.2.13
Dos side: Crynwr packet driver PLIP.COM version 11.0
         winpkt.com
         Trumpet winsocket protocol stack

Trumpet recognizes the packet driver without problem. When I try to connect
from DOS to Linux, an ARP request is sent, and apparently also
received by the Linux box. arp -a shows the new entry in the arp table, and
ifconfig -a also shows the received packet. But then the reply is
not received by the dos machine. In /var/adm/messages I get plip transmit
timeout.
Now my question: Has anybody ever connected a DOS machine to Linux
using PLIP?

Thanks for ANY replies.    
Klaus

: I am trying to connect a DOS machine to a Linux box using PLIP.

: Connecting two linux boxes using PLIP is no problem. Everything  works
: fine. But DOS to Linux....
: Linux side: Kernel 1.2.13
: Dos side: Crynwr packet driver PLIP.COM version 11.0
:          winpkt.com
:          Trumpet winsocket protocol stack

: Trumpet recognizes the packet driver without problem. When I try to connect
: from DOS to Linux, an ARP request is sent, and apparently also
: received by the Linux box. arp -a shows the new entry in the arp table, and
: ifconfig -a also shows the received packet. But then the reply is
: not received by the dos machine. In /var/adm/messages I get plip transmit
: timeout.
: Now my question: Has anybody ever connected a DOS machine to Linux
: using PLIP?

I've already succeeded in making DOS connect to linux servers using PLIP.
I had many problems because I needed to modify the classes supported by the
pktdrv, but after that, it worked.

A big problem I've had an I still have is that I cant use this PLIP
connection with a notebook. The problem comes from the IRQ line not
correctly activated (busy line, pin 11). I can't understand why. I thought
the notebook didn't accept IRQ, but it does this with several notebooks I've
tested, and I am not very happy because I wanted to do this to allow a
notebook to connect to a netware server through a linux bridge, without
having any pcmcia net card !

Perhaps notebooks don't use the same voltage levels and the line isn't
activated. Perhaps your parallel port is in this case, even if you don't
have a notebook. Have-you ever tried with another parallel card ?
Are you sure your // port generated an IRQ ? (don't trust MSD's lies, MSD
only says what you SHOULD have, but not what you DO have. It's only able
to detect serial UARTs).

I ask you these questions because you say that linux to linux works fine,
but you don't say if this works fine between the 2 same machines as with
DOS and Linux, or between 2 other machines...

If it is only under DOS that your connection doesn't work, then verify you
didn't configure a dos extender that would slow down IRQ rate or even lose
IRQs.

: Thanks for ANY replies.    
: Klaus

That's all I can do for you.

Willy

--
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plus je connais l'informatique, moins j'aime jouer
plus je connais les joueurs, moins j'aime l'informatique
------------------------------S. Fernier & W. Tarreau---

Hope this helps.
Erv

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autoexec.bat:
c:\dos\mode lpt1: retry=r           <--- yeah!
lh c:\network\plip.com 0x62

ka9q:
attach packet 0x62 plip1 4 2048
ifconfig plip1 mtu 1500 netmask 0xFFFFFFFF
arp add 192.109.53.150 ethernet fc:fc:c0:6d:35:96 <- a fake arp for linux
                                                  (from ifconfig plip)

--
                 .o.
                /   \

               |     |
              /_______\
                   `o