Experimental Physics and
Industrial Control System

You don't need to fix anything. That is a normal warning that your IOC may not be reachable using UDP unicast, but you will be using broadcast so it won't be a problem.

Mark

Sent from my iPhone

> On Feb 23, 2015, at 12:41 PM, Chen Xue <[email protected]> wrote:
> 
> Hi, there,
> 
> I have multiple IOCs in a same host. I set up my EPICS_CA_ADDR_LIST to its
> broadcast address of IOC host as "1.2.3.255" instead of its IP address
> "1.2.3.4" or localhost. But when I started IOC, I still got the warning as
> below.
> 
> cas warning: Configured TCP port was unavailable.
> cas warning: Using dynamically assigned TCP port xxx,
> cas warning: but now two or more servers share the same UDP port.
> cas warning: Depending on your IP kernel this server may not be
> cas warning: reachable with UDP unicast (a host's IP in EPICS_CA_ADDR_LIST)
> iocRun: All initialization complete
> 
> BTW, my IOC host and client are in the same subnet.
> 
> How should I fix it?
> 
> Thanks,
> 
> Chen

References:

EPICS_CA_ADDR_LIST question Chen Xue

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