Date: Fri, 16 Jul 93 04:30:14 PDT
From: Advanced Amateur Radio Networking Group <tcp-group@ucsd.edu>
Errors-To: TCP-Group-Errors@UCSD.Edu
Reply-To: TCP-Group@UCSD.Edu
Precedence: Bulk
Subject: TCP-Group Digest V93 #182
To: tcp-group-digest


TCP-Group Digest            Fri, 16 Jul 93       Volume 93 : Issue  182

Today's Topics:
     Needed: Packet driver for DEC VaxMate & DE100 Card (2 msgs)
                  TheNet X1H has no ICMP checksum???

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Date: Tue, 15 Jun 1993 11:07:10 +119304028 (CDT)
From: schellew@wu4.wl.aecl.ca (Wayne Schellekens)
Subject: Needed: Packet driver for DEC VaxMate & DE100 Card
To: tcp-group@ucsd.edu

Does anyone know of a packet driver which will work with a DEC VAXmate
computer?  This is an old 286-class machine with a built-in ethernet
adapter.  The DEPCA.COM driver does not seem to work.

Also, I am now running a Digital DEPCA LCi (DE100) ethernet card and cannot seem
to get it to work with the DEPCA packet driver.  I have it configured
for a 32K buffer from C800-CFFF using IRQ5.

Any help in getting these two systems running will be greatly
appreciated.

P.S. I was running NOS using an old DEPCA card and the DEPCA driver but
     that card was not compatible with my new machine :-(.

Thanks.
Wayne

-- 
Wayne Schellekens, VE4WTS          Internet: schellew@wu2.wl.aecl.ca
AECL Research                         AX.25: VE4WTS@VE4KV.#WPG.MB.CAN 
Whiteshell Laboratories        Twisted pair: (204)753-2311 x2317
PINAWA, MB  Canada  R0E 1L0             Fax: (204)753-2455

------------------------------

Date: Thu, 15 Jul 1993 15:59:16 -0400
From: goldstein@carafe.tay2.dec.com (k1io, FN42jk)
Subject: Needed: Packet driver for DEC VaxMate & DE100 Card
To: tcp-group@ucsd.edu

>Also, I am now running a Digital DEPCA LCi (DE100) ethernet card and cannot seem
to get it to work with the DEPCA packet driver.  I have it configured
for a 32K buffer from C800-CFFF using IRQ5.
 
The DEPCA packet driver, up to version 10, could only operate in 64k
mode.  The Very Latest one (V11 if so released) is needed for 32k
mode.  I got it in beta several months ago and am very happy with it,
on a DE202.

I believe the VAXmate is electrically like a DE100 DEPCA, but I'm
not certain of the details...
   fred    k1io

------------------------------

Date: Thu, 15 Jul 1993 19:04:28 -0600
From: davis@realtime.ab.ca (Glenn Davis)
Subject: TheNet X1H has no ICMP checksum???
To: nos-bbs@hydrra.carleton.ca, tcp-group@UCSD.EDU

Hi folks,

   I am in the process of implementing a four repeater (single freq) link
from a remote city to one that is less so.  The distance is approx. 450 km.
I had been seriously looking at TheNet X1H to do the IP routing, but have
discovered a disturbing problem:  there are *no* ICMP checksums generated!

   The ICMP checksum is set to 0 (zero).  JNOS seems to ignore this, but 
better implementations of TCP/IP do not.  I had originally thought this 
was a UNIX bug, but I have been *forcefully* reminded that ICMP checksums
are a required part of the protocol.

   My questions are: is this a known problem?  is the source for TheNet
available for debugging?  are there better implementations for tnc-2 clones
to perform ip routing?

Glenn/VE6RSX
(davis@realtime.ab.ca)

BTW Athabasca: what freq. do you run packet on???

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End of TCP-Group Digest V93 #182
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