Experimental Physics and
Industrial Control System

Jeff Hill <[email protected]> · Wed, 18 Mar 1998 10:35:11 -0700

Dave,

On Tuesday, March 17, 1998 6:03 PM, Dave Barker [SMTP:[email protected]] wrote:
> I'm getting the following problems when running MEDM on my
> solaris 2.6 machines:
> 
> CA.Client.Diagnostic..............................................
>     Message: "No internet interface with broadcast available"
>     Severity: "Warning" Context: "caAdd : ca_build_and_connect failed
> "
>     Source File: ../medmCA.c Line Number: 680
> ..................................................................
> 
> but when I ifconfig -a, I get:
> 
> lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
>         inet 127.0.0.1 netmask ff000000
> hme0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
>         inet 206.61.208.109 netmask ffffff00 broadcast 206.61.208.255
> 

Quick workaround:
Set EPICS_CA_AUTO_ADDR_LIST to NO and specify an explicit broadcast
address in EPICS_CA_ADDR_LIST (see the CA reference manual).

Long term:
The code involved is in base/src/ca/if_depn.c
in routine caDiscoverInterfaces(). One possibility is that the code has to
be recompiled on Solaris 2.6 in order for the interface flags or ioctl codes
to be defined correctly. You might look in the release notes for Solaris 2.6. 
You could also build EPICS base with debug (ie HOST_OPT = NO) and then
step through this routine in the debugger to get a closer look at the 
situation.

I just spoke with Rozelle here, and it turns out that we recently installed a 
Solaris 2.6 machine here. Rozelle said that she will try to reproduce 
the problem here.

Jeff

> the broadcast address is set correctly for a Class C network. I have
> seen this problem
> on all types of Solaris 2.6 machines (E2 and Ultra30).
> 
> Can anyone help with this?
> 
> thanks,
> 
> Dave Barker.
> 
> --
> 
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> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System