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Date:      Fri, 28 Apr 2000 11:17:50 +0200
From:      Alexander Strauss <strauss@ti.com>
To:        freebsd-isdn@freebsd.org
Subject:   NetBSD RAW-IP Problem
Message-ID:  <3909573E.6475E22B@ti.com>

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Hi,

I've setup a HDLC RAW-IP connection from a NetBSD/i386 1.4.2 System to a
isdn4linux system. The same configuration with a 2nd Linux system worked
well for years.

Now I've replaced one Linux system with the above NetBSD system. The
configuration is ok, the connection establishes without any errors,
ISDND and Interface debugging say nothing special.

If I ping the remote system, it seems to work. Also an rlogin works the
first time, but at any point the rlogin sessions hangs and won't come
back. Same with FTP:

ftp> get pt_lab.tar.gz
local: pt_lab.tar.gz remote: pt_lab.tar.gz
200 PORT command successful.
150 Binary data connection for pt_lab.tar.gz (137.167.205.26,1294)
(2108886 bytes).
#####
receive aborted
waiting for remote to finish abort
426 Transfer aborted. Data connection closed.
226 Abort successful
5840 bytes received in 55.3 secs (0.1 Kbytes/sec)
ftp> 

The first few packets are going through, then the transfer stops and
doesn't come back - I'll have to terminate it. Same with tftp, http ....

A ping I sent during the FTP transfer did not show up any packet loss. 

64 bytes from 137.167.204.135: icmp_seq=18 ttl=252 time=33.1 ms
64 bytes from 137.167.204.135: icmp_seq=19 ttl=252 time=32.7 ms
64 bytes from 137.167.204.135: icmp_seq=20 ttl=252 time=32.0 ms
64 bytes from 137.167.204.135: icmp_seq=21 ttl=252 time=41.7 ms
64 bytes from 137.167.204.135: icmp_seq=22 ttl=252 time=258.1 ms
64 bytes from 137.167.204.135: icmp_seq=23 ttl=252 time=152.2 ms
64 bytes from 137.167.204.135: icmp_seq=24 ttl=252 time=32.2 ms
64 bytes from 137.167.204.135: icmp_seq=25 ttl=252 time=39.7 ms
64 bytes from 137.167.204.135: icmp_seq=26 ttl=252 time=39.2 ms
64 bytes from 137.167.204.135: icmp_seq=27 ttl=252 time=38.8 ms

The interface statistics on both NetBSD and Linux do not show up any
errors. I tried to find out something with tcpdump, but I didn't see
anything special there - the remote system seems not to answer anymore,
but only for the specified connection.

Really strange thing. Any suggestions are welcome.


Thank you,
Alex
-- 
Alexander Strauss - Email: strauss@ti.com - TI-MSG: ALST 
System Administrator - Mixed Signal & Logic Products Europe
Texas Instruments Deutschland GmbH, 85350 Freising, Germany
Phone: +49 8161 80-3606 - Fax: +49 8161 80-4477


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