pvlist does not find all servers in network

[Florian Feldbauer via Tech-talk <tech-talk at aps.anl.gov>]

Hey all,

I have a strange problem, that I haven't encountered before.

In our lab we have a small test setup for our pixel sensors.
As HV/LV power supply for these sensors we use a Wiener MPOD crate with 
an iseg Crate Controller.
The crate controller is running Linux (The Ångström Distribution 
v2017.12) and an EPICS IOC with PVA.
Now, when I run `pvlist` from another PC I see a list of all the IOCs 
running in this network except the one on the iseg Crate Controller.
When I explicitly run `pvlist iseg-iCS2-5230317` I get a list of all PVs 
from that IOC, so PVA communication works in general, but for some 
reason this IOC is not reacting on broadcasts.
I checked with netstat and for me this looks correct:

> root@iseg-iCS2-5230317:~# netstat -tuln | grep 5076
> udp        0      0 224.0.0.128:5076        0.0.0.0:*
> udp        0      0 192.168.10.255:5076     0.0.0.0:*
> udp        0      0 192.168.10.22:5076      0.0.0.0:*
> udp        0      0 224.0.0.128:5076        0.0.0.0:*
> udp        0      0 192.168.10.255:5076     0.0.0.0:*
> udp        0      0 192.168.10.22:5076      0.0.0.0:*
> udp        0      0 :::50767                :::* 
There is no firewall running on the crate controller.

Any idea what could cause this issue?

Cheers,
Florian

--
Ruhr-Universität Bochum
AG der Experimentalphysik I
Dr. Florian Feldbauer
NB 2/131 / Fach 125
Universitätsstr. 150
D-44801 Bochum

Office: NB 2/134
Phone:  (+49)234 / 32-23563
Fax:    (+49)234 / 32-14170
https://urldefense.us/v3/__https://paluma.ruhr-uni-bochum.de__;!!G_uCfscf7eWS!d4orFRFCm3xcYL5Yx9N-HX49OEytQPrUJ8Sv2cArOyrmf5cweAm7ZnnCr4RHMbDDTiWK2BDOEmennlmi3hqKeyQum3eaIm7YYDg$