Created attachment 274342 [details] patch to apply Although 3.12 has upstream support for the divert(4) (see bug 267648), there left a problem, that was later fixed in 3.13. The problem is that those socket operations that need to know address length were failing. E.g. send(2) and recv(2) work, but sendto(2) and recvfrom(2) don't. Since we are slow on switching over to 3.13, I decided to backport this patch to 3.12 and asking you to include it in the ports.