Experimental Physics and
Industrial Control System

"Manoussakis, Adamandios via Tech-talk" <tech-talk at aps.anl.gov> · Wed, 17 Mar 2021 06:43:05 +0000

Thanks Han,

Will I need to just drop the script on the system that is running the multiple IOCs?  Also do I keep the EPICS_CA_ADDR_LIST env variable on client/server with the broadcast address 192.168.1.255/192.168.2.255 respectively once I have added that script on the server?

-----Original Message-----
From: Jeong Han Lee <citadel.lee at gmail.com> 
Sent: Tuesday, March 16, 2021 11:39 PM
To: Manoussakis, Adamandios <manoussakis1 at llnl.gov>
Cc: tech-talk at aps.anl.gov
Subject: Re: Multiple IOCs on one host Issue

Hi Adam,

Please look at the following document, which Ralph prepared, and I updated "slightly"

https://urldefense.us/v3/__https://epics-controls.org/resources-and-support/documents/howto-documents/channel-access-reach-multiple-soft-iocs-linux/__;!!G2kpM7uM-TzIFchu!iWAkPmEMaKK8Pxy2rfbP9icXJMW10JgvWCEsVuESZZ0kBS5_DT4I6cPBTNYTFMAXM2Os$ 

And here is my own old tool which you may use for fun.
https://urldefense.us/v3/__https://github.com/jeonghanlee/epics_NIOCs__;!!G2kpM7uM-TzIFchu!iWAkPmEMaKK8Pxy2rfbP9icXJMW10JgvWCEsVuESZZ0kBS5_DT4I6cPBTNYTFOvPq0Qj$ 

Best,
Han

On Tue, Mar 16, 2021 at 11:20 PM Manoussakis, Adamandios via Tech-talk <tech-talk at aps.anl.gov> wrote:
>
> Hello All,
>
>
>
> I am having trouble solving the use of multiple IOCs running on my linux host.  Currently I start up 4-5 IOCs on my linux host but depending on the order my client cant access one of the IOCs, the host/client are on different subnets 192.168.1.X/192.168.2.X respectively.  I had a previous post where it was brought up that I should be able to add in the EPICS_CA_ADDR_LIST the broadcast address on the IOCs and on the client trying to connect to one of the IOCs on the linux host.  For example 192.168.1.255 (client broadcast) and 192.168.2.255 (host broadcast), I keep EPICS_CA_AUTO_ADDR=YES.  But once I change the env variables to have the broadcast IPs, I am not able to caget on the client to any of the IOC PVs running on the linux host.  Ports are open, no firewall rules.
>
>
>
> Thanks,
>
> Adam

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System