Linux-Hams archive - March 1998: Re: ip over linux makes linux crash

Re: ip over linux makes linux crash

Guy Roelant (xoaoj.cbhnvtvc@roskapostia.tunk.net)
Sun, 15 Mar 1998 23:40:02 +0100


-----Original Message-----
From: Jochen Kmietsch <jrg.czdf@nciinc.com>
To: bek@humlak.cz <gxrfhja.fkwnv@erpoperation.it>
Cc: ayjq.bcomefawg@gold-data.net <terhi.victor@logonet.com>; Guy Roelant
<on1bhm@on4ufa>
Date: Sunday, March 15, 1998 9:58 PM
Subject: RE: ip over linux makes linux crash

Hello Guy !
Hold on a second. on4ufa.ampr.org is 44.144.0.2 on Ethernet, right ?

yes indirect.... by encap....

> /sbin/arp -H netrom -s 44.144.90.5 ON4AAK -i nr0
This assigns 44.144.90.5 to the netrom port, meaning you are 44.144.0.2 on
Ethernet
and 44.144.90.5 on Netrom.

are you sure?
the ip nr of the netrom port is 44.144.0.2
/usr/sbin/nrattach -i 44.144.0.2 nr0
------------------

> /sbin/route add -host 44.144.90.5 dev nr0
This means that you can reach 44.144.90.5 via nr0. But 44.144.90.5 is
44.144.0.2 is
the same machine ? I am not into Netrom but in Ethernet this would mean
that I
send stuff for myself in the Ethernet, where the router sends it right back
to me,
then I sent it back in the Ethernet etc. Sounds like a loopback to me...

No,No, 90.5 is the gateway on the other end of the netrom part!

> /sbin/route add -net 44.144.9.0 netmask 255.255.255.0 gw 44.144.90.5
This means that I can reach the 44.144.9.0 net via 44.144.90.5 which is
on4ufa !

I would guess that we have a pile up of packets somewhere. Could you
elaborate what
IP-addresses on4ufa has, whether there is one station or more station on the
other
side of the Netrom connection and from where packets should go where ?

there are more stations on the other end... an whole class c!!

I am not much into ham but I have messed with routing quite a bit so we
should be
able to figure this out. Either the ARP entry or the first route is wrong.

Jochen

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