I recognized that when I startup the bridgeserver it assignes the unicast ports to the multicast ports different than last time. For example: 1st startup: 50096 --> 59922
2nd startup: 50096 --> 59924 Therefore I looked into the code and finally arrived at NetworkAddressAllocator.py. This class seems to select ports on a random base. I found the symbol NetworkAddressAllocator.INTERVAL which I assumed to be a sequential port selection approach. Unfortunately this seems not to be implemented yet. So I tried to do it on my own, for our local installation, as we required fixed assignment of uc-ports to mc-ports. My question now is regarding the method def AllocatePortInRange(self, even, portBase, portMax): I would like to know what the parameter even stands for. Is it indicating whether the port to be allocated should be an even port number or uneven? Clearing this for me would be very helpful Thanks. Michael Braitmaier ------------------ Dipl.-Inf. Michael Braitmaier HLRS - Visualization / Video Conferencing University of Stuttgart Germany Website: http://www.hlrs.de/organization/vis/people/braitmaier/