[LAU] Netjack on Linux Mint 17 and Windows 7 with jackdmp 1.9.10

Hi *, I wanted to use some VST plugin over network. I am trying to get netjack running. My Master is Linux Mint 17 x86_64 (192.168.0.10) running jackdmp 1.9.10. My Slave is a Windows 7 64Bit (192.168.0.30) running jackdmp 1.9.10. With jack_netsource running on the Linux Master, nothing happend at all. Neither with running jackd -dnet nor with jackd -dnetone on the Windows slave. With jack_net_master running on the Linux Master, I get the following error: "NetJack master can not be opened", when I execute the following command on the Windows slave: jackd.exe -R -S -d net -P8 -C8. In this scenario I capture the following UDP datagram with Wireshark: 192.168.0.30 225.3.19.154 UDP 686 Source port: igrid Destination port: igrid. What I found with goioglew, was not helpful yet. Has anyone some ideas, advice or web source? Regards, Ck