Experimental Physics and
Industrial Control System

Did you try setting EPICS_CA_AUTO_ADDR_LIST=NO, EPICS_CA_ADDR_LIST=localhost, or the IP address of your vxWorks computer?

 

Mark

 

 

 

Hi All,

I posted several weeks ago about an issue that a client failed to connect local server on vxWorks 6.3.

We developed a PCAS server and a client based on libcas and libca (EPICS Base 3.14.9). They work well on Windows, and we are now porting them to vxWorks (ppc-603). During the process, we found the issue that, if the client and server are on a single host, the connection couldn't be established.

After debugging for a long while, we found the root issue is that a broadcast to 255.255.255.255 from a vxWorks host CANNOT be heard by local host. It seems like a loopback policy limitation for vxWorks.

So I'd like to know if there's anyone who ran into the same issue as I am. Or someone who can successfully connect a client to a local server on vxWorks, and how do you do that.

Thank you very much for your time.

Lorna Zhang
National Instruments Shanghai
Tel: 86-21-50509810-3230