Experimental Physics and
Industrial Control System

<[email protected]> · Tue, 17 Apr 2012 13:53:55 +0000

From: [email protected] [mailto:[email protected]] On Behalf Of Pavel Masloff
> Look. I have noticed that even when I am normally starting
> an IOC on a linux machine, then I get these messages:
> online_notify.c:CA beacon (send to "172.20.255.255:5065") error was "Connection refused"

These messages are an old old chestnut and a pain in the bum.  We get them here all the time on our development network, and I understand that they're triggered by a misconfigured IOC somewhere on our network incorrectly responding to discovery packets (or something like that).  I would so much like to see the offending machine thrown in the bin, but apparently it's too hard to fix or something.

>From what I remember being told, the offending machine doesn't understand our /20 network and is incapable of understanding anything that isn't a class A B or C network.  Why this should affect every other IOC machine on the same network is, I confess, a mystery to me.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System