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From: David Dawes <dawes@Physics.usyd.edu.au>
Message-Id: <199509291005.UAA15300@physics.su.oz.au>
Subject: Re: WD8013 problem
To: kuku@gilberto.physik.rwth-aachen.de (Christoph P. Kukulies)
Date: Fri, 29 Sep 1995 20:05:35 +1000 (EST)
Cc: freebsd-hackers@freefall.freebsd.org
In-Reply-To: <199509290848.JAA17224@gilberto.physik.rwth-aachen.de> from "Christoph P. Kukulies" at Sep 29, 95 09:48:56 am
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>A while ago I reported a strangeness with connecting to one
>of my machines. Strange is now that I can only observe
>the effect with that one machine and gradually I'm beginning to
>think it's hardware or a driver problem. Let me enumerate the
>problems I have:
>
>1/  Connecting from my remote 1.1.5.1 site via slip gives the following
>    picture.
>    $ telnet gil
>
>    Trying 137.226.31.2...
>    Connected to gilberto.physik.rwth-aachen.de.
>    Escape character is '^]'.
>
>       FreeBSD (gil.physik.rwth-aachen.de) (ttyp2)
>
>    (note the missing login: prompt - it only appears when I type <cr>)

I've sometimes seen this symptom, and I've seen it happen when
running 'telnet localhost' on a 2.0.5 machine.  It doesn't always happen
though.  I just tried it, and the first two attempts worked OK, and the
third showed the problem (I just typed ^D at the login prompts):

rf900[116]> telnet localhost
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

   FreeBSD (rf900) (ttypn)

login: Connection closed by foreign host.
rf900[117]> telnet localhost
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

   FreeBSD (rf900) (ttypn)

login: Connection closed by foreign host.
rf900[118]> telnet localhost
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

   FreeBSD (rf900) (ttypn)

Connection closed by foreign host.


>3/  Doing rlogin (also telnet I believe) sessions from gil to
>    neighboured hosts often results in getting a connection refused,
>    connection closed by foreign host the first time, rlogin the
>    second time then works.

There was a time when I saw something like this, but with rsh.  I may
have been running the rsh from an SVR4 machine -- it was a while ago
and I don't remember the details.  I think this problem disappeared
when I set tcp_extensions to NO in /etc/sysconfig.

David