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Subject: Re: EPICS_CA_ADDR_LIST and multiple instances of a SoftIOC on Windows
From: Carsten Winkler via Tech-talk <tech-talk at aps.anl.gov>
To: <tech-talk at aps.anl.gov>, <rivers at cars.uchicago.edu>, <kasemirk at ornl.gov>, Ralph Lange <ralph.lange at gmx.de>
Date: Mon, 19 Sep 2022 08:08:53 +0200
First, thanks for all the replies and good ideas to solve the problem.

For me, the solution below worked very well.

Maybe this solution should be included in the documentation.

Best regards,
Carsten

Am 16.09.2022 um 21:19 schrieb tech-talk-request at aps.anl.gov:
set EPICS_CA_ADDR_LIST=broadcast_address_of_the_subnet

set EPICS_CA_AUTO_ADDR_LIST=NO

-> All CA servers on the subnet get it, which might be both my_computer.bessy.de and ca_gateway.bessy.de. So you can't avoid the gateway. A gateway is often configured to be read-only, so depending on luck you might get a read-only PV via the gateway or a writable PV from the actual IOC. Ask me how many confused emails that has caused.

--
Carsten Winkler
Software Developer
BE-IA-AOT / AG ELIS
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Re: EPICS_CA_ADDR_LIST and multiple instances of a SoftIOC on Windows Ralph Lange via Tech-talk

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