The question of getting access to remote (off subnet) IOC's is a common one.
The limit in the env. vars is maybe also good because we might end with addr-lists of too
many nodes. None the less I want to propose to add a new env. var like: EPICS_CA_ADDR_FILE
where you can enter all your IOC's you want to talk to. This might be a performance hit to
the client and therefore it should not be implemented on the IOC clinet.
Another solution might be the ca_name_server which we heared about during the EPICS
workshop and which might have another implementation based on the portable ca_server.
If this solution would be available already for 3.13 (Jeff??) many of us would not need to
argue any more about the limitations in EPICS_CA_ADDR_LIST.
Matthias
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