home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Columbia Kermit
/
kermit.zip
/
newsgroups
/
misc.19950726-19950929
/
000163_news@columbia.edu_Wed Aug 9 09:22:30 1995.msg
< prev
next >
Wrap
Internet Message Format
|
2020-01-01
|
5KB
Received: from apakabar.cc.columbia.edu by watsun.cc.columbia.edu with SMTP id AA16567
(5.65c+CU/IDA-1.4.4/HLK for <kermit.misc@watsun.cc.columbia.edu>); Tue, 15 Aug 1995 23:58:28 -0400
Received: by apakabar.cc.columbia.edu id AA20757
(5.65c+CU/IDA-1.4.4/HLK for kermit.misc@watsun); Tue, 15 Aug 1995 23:58:26 -0400
Path: news.columbia.edu!panix!news.intercon.com!udel!news.mathworks.com!newsfeed.internetmci.com!news.sprintlink.net!psgrain!nntp.teleport.com!nntp.teleport.com!not-for-mail
From: sysone@teleport.com (FIGHT THE POWER)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: MSKermit over IP connection
Date: 9 Aug 1995 02:22:30 -0700
Organization: I? Organized? Right. :-)
Lines: 79
Message-Id: <409uom$apq@kelly.teleport.com>
References: <4073r0$ijs@linda.teleport.com> <1995Aug8.082408.58352@cc.usu.edu>
Nntp-Posting-Host: kelly.teleport.com
Summary: Take 2...
Apparently-To: kermit.misc@watsun.cc.columbia.edu
I'll _try_ to recast this coherently... :-)
Joe D. wrote:
# I'm not sure I follow all the details above, but let me take a
#stab at matters.
# SLIP is a point to point transport mechanism with only two stations
#on the wire: this end and "the other end". There is no ARP-ing involved
#since ARP is a way of finding one of many stations on the same broadcast
#medium (and a serial link isn't a broadcast medium). CSLIPPER is a SLIP
#Packet Driver.
Right... I'm thinking of the connection as running
something like this:
[My DOS app] -> [SLIP or PPP client] -> [Serial card] ->
[My modem] -> [Telephone network] -> [Server's modem] ->
[Server's port] -> [SLIP or PPP server] -> [Server's LAN] ->
[LAN's TCP/IP gateway] -> Internet stuff...
# Given a point to point architecture "the other end" is responsible
#for transporting packets to far away places, and hence it is both a host
#and the gateway. Figuring out what to do with packets not addressed to it
#is a problem that other end has to deal with. I have no idea of how you
#have the Cisco boxes configured. In any case, SLIP has no notion of routing,
I don't know about the Ciscos' configurations either,
although I can get some information from the server prompt using
the 'show' command with various extensions. I have asked the
support office here re the manuals... which they couldn't locate!
#gateway, or ARP. Any routing which does occur is a pleasant side effect
#of "the other end."
#
I'm thinking that the server, attempting to link me to
the Net, can't resolve the gateway's IP address into a valid
Ethernet address, and sends some message to this effect back to
the client. Since the client (DOS Kermit in this case) is
attached to the server via SLIP/PPP, the message is passed over
the link layer back to my SLIP/PPP driver, which complains to
Kermit; the link layer has nothing to do with all this beyond
hauling datagrams back and forth.
All this is based on my exceedingly limited knowledge of
networking of course. I'm probably out to lunch on some of it.
# EtherPPP is the MERIT item, I presume. Honestly, I have never been
#able to get that program to work in any way; it always hangs my machine as
#it starts up. Thus I have nothing useful to suggest for it.
#
Yup, configuring EtherPPP is a unique experience. It
works great now that I've figured out the settings my machine
likes. But that doesn't mean I've found a configuration which
would work everywhere. To return to the topic, the ARP problem
appears to occur independent of the driver (I have tried two
EtherPPP releases as well as the {,C}Slipper drivers). With the
earlier Kermit no problem. With the recent Kermit, the ARP error
is returned.
# Adding to my confusion on your report is "name resolution doesn't
#seem to be a problem." If the nameserver is far away, in the SLIP sense,
#then that is no different than trying to reach another machine far away.
#
Right. An inadvertent red herring on my part...
I don't know if what I have added is helpful in
diagnosing the problem. I would be more than happy to mail in
session transcripts, config files &c. if this would help. I
suppose I've used enough bandwidth on this question at any rate.
Thanks...
___________________________________________________________________
I know that I am man; in the day to come
My portion will be as yours, no more, no less.
- Sophocles, _Oedipus at Colonus_, 401 B.C
Tr. E.F Watling, 1946, after "mainly... Jebb (Cambridge; 1889)."
Never a Windoze user and proud of it.
Mail: <sysone@teleport.com> URL: <http://www.teleport.com/~sysone>