Hello! > netlink uses pids (or really tids I hope?) to address sockets > associated with processes. Not really. It uses port number which is called "pid" occasionally. Bad name. Autobind function simply selects tgid of calling process as the first guess. Actually sockets are addressed by pair (net namespace, port) and communication is possible only inside net namespace. So, communication between namespaces is already prohibited. pid namespaces do not participate in the picture at all. Alexey _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization