Experimental Physics and
Industrial Control System

Jeong Han Lee via Tech-talk <tech-talk at aps.anl.gov> · Wed, 17 Mar 2021 00:02:04 -0700

I never test your case (two subnets) by myself, so I cannot answer
your question properly. My experience is limited within one subnet.
You may try it, and let me know. There are several important comments
in wiki. Please check them as well.

Thanks,
Han

Han

On Tue, Mar 16, 2021 at 11:44 PM Manoussakis, Adamandios
<manoussakis1 at llnl.gov> wrote:
>
> Sorry wanted to add, or can I just go back to using the IP addresses of the server/client instead of broadcast?
>
> -----Original Message-----
> From: Jeong Han Lee <citadel.lee at gmail.com>
> Sent: Tuesday, March 16, 2021 11:41 PM
> To: Manoussakis, Adamandios <manoussakis1 at llnl.gov>
> Cc: tech-talk at aps.anl.gov
> Subject: Re: Multiple IOCs on one host Issue
>
> You may look at an old discussion which I did with Ralph
>
> https://urldefense.us/v3/__https://github.com/jeonghanlee/epics_NIOCs/issues/1__;!!G2kpM7uM-TzIFchu!j4tNUmtCNRdzOlwSDWb8IXbletOBRPmJOrsXcbmr8ERl0IQ6HdN1Q-Ra-hu-kSSFg-jB$
>
> HTH,
> Han
>
> On Tue, Mar 16, 2021 at 11:39 PM Jeong Han Lee <citadel.lee at gmail.com> wrote:
> >
> > 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-su
> > pport/documents/howto-documents/channel-access-reach-multiple-soft-ioc
> > s-linux/__;!!G2kpM7uM-TzIFchu!j4tNUmtCNRdzOlwSDWb8IXbletOBRPmJOrsXcbmr
> > 8ERl0IQ6HdN1Q-Ra-hu-kQpNTyTR$
> >
> > 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!j4tNUmtCNRdzOlwSDWb8IXbletOBRPmJOrsXcbmr8ERl0IQ6H
> > dN1Q-Ra-hu-kTcpl7-k$
> >
> > 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