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Date:      Wed, 3 Nov 1999 18:36:08 +0100 (CET)
From:      Konrad Heuer <kheuer@gwdu60.gwdg.de>
To:        freebsd-questions@freebsd.org
Subject:   Class B Network / Host Not Reachable
Message-ID:  <Pine.BSF.4.05.9911031818310.61120-100000@gwdu60.gwdg.de>

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I've encountered the following problem on two different servers (3.1-R and
3.3-R): We've a class B network with proxy arp which I don't use (endless
arp moved ... messages within syslog - any idea how to suppress them?);
both machines use netmask 255.255.255.0 and a default router to
communicate with the world outside the subnet. From time to time, one or
two or very few machines outside the class C subnet but inside the class B
net are not reachable - traceroute doesn't show any(!) successful hop, and
`netstat -r' or `arp -a' don't show anything special with that machines. I
will be able to traceroute to `a.b.c.n-1' but not to `a.b.c.n' in such a
situation. Adding a static route to the machine, tracing the route and
then deleting the static route will be a workaround - the system will stay
reachable after that sequence. Any idea why the whole thing happens?

Thanks for reading!

//
// Konrad Heuer                                  ____            ___  _____=
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//                                                http://www.freebsd.org
// kheuer@gwdu60.gwdg.de
//



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