How would one check to see if ipv4 --> ipv6 translations is happening? netstat gives me the following: tcp6 0 0 :::5544 ::: LISTEN However, only the following in tcp (vs tcp6): tcp 0 0 0.0.0.0:111 0.0.0.0: LISTEN tcp 0 0 0.0.0.0:22 0.0.0.0: LISTEN tcp 0 0 127.0.0.1:25 0.0.0.0: LISTEN !sysadmin