B4J Question upnp server / discovery II

hi! both works for me on linux arch (server on release mode and client on debug)
client


server

Hi Enrique, thx for the feedback ..... big Mysterium

I can't get it to work here. Flat network , no firewall etc on the Linux, OSX machine.....


sometimes I can see "NOTIFY" messages from the Sonos speaker here in the office.


no idea why the socket is not listening properly, nmap shows that the port is open:


who has an idea?


THX

1 step closer ......

it is somehow related to multiple interfaces on those machines (1 x physical & 1 x OVPN)

if I bring down the OVPN Interface the 'poc-server' replies as expected

what I don't understand: why does the 'poc-server' 'see' to the Sonos devices as mentioned before if both interfaces are enabled ????

both interfaces enabled on 'server':
packet received event is not raised using my little poc client or echo -n 1234567890| ncat -vu 239.255.255.250 1900
packet received event is raised by 'NOTIFY' message from the Sonos device

disabling the OVPN interface:
packet received event is raised with my little poc client or echo -n 1234567890| ncat -vu 239.255.255.250 1900
packet received event is raised raised by 'NOTIFY' message from the Sonos device


is it possible that the does not listen on multiple interfaces correctly ? is it possible to define the listening interface ?