Greetings! *** Shawn K. Quinn [2021-07-19 10:11]: >So apparently the use of MCD prohibits the simultaneous use of both >nncp-caller and nncp-daemon. Is this intentional? Not intentional. SO_REUSEPORT is set only to explicitly multicasted UDP port, that was not created in MCD transmitting function. Fixed in 7.4.0 release. Thanks for finding that out! I just have not run -caller and -daemon simultaneously on the same machine. -- Sergey Matveev (http://www.stargrave.org/) OpenPGP: CF60 E89A 5923 1E76 E263 6422 AE1A 8109 E498 57EF