Experimental Physics and
Industrial Control System

On 9/15/23 11:20, Jure Varlec via Tech-talk wrote:

On 9/15/23 09:24, Ralph Lange via Tech-talk wrote:

Sorry for asking the obvious:
Have you tried adding the PVA ports 5075/5076 in the same way as the CA ports 5064/5065?

Cheers,
~Ralph

But note that, depending on the firewall's connection tracking, just adding these ports may not be sufficient to talk to IOCs because of an issue in pvAccessCPP. Ask me how I know ...

https://github.com/epics-base/pvAccessCPP/issues/159

Thank you for giving me an opportunity to mention that PVXS address both issues :)

Concerning #159 , a PVXS server search replies will come from the search port (5076/udp by default),
so a stateful firewall can more easily associate search request with reply.

Also, PVXS servers use EPICS_PVAS_SERVER_PORT to choose a fixed TCP port other than 5075,
which can help in situations with a firewall and more than one IOC.

https://mdavidsaver.github.io/pvxs/

Replies:

RE: PVA connection problem [SEC=UNOFFICIAL] STARRITT, Andrew via Tech-talk

References:

PVA connection problem Ignacio Arriagada via Tech-talk

Re: PVA connection problem Ralph Lange via Tech-talk

Re: PVA connection problem Jure Varlec via Tech-talk

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