Doug Whitfield

Doug Whitfield at

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

If it's listening on :::5544 I think it is implicitly listening on 0.0.0.0:5544. The opposite is not true. The TCP4 listens are TCP4-only.

clacke@libranet.de ❌ at 2017-11-07T06:37:24Z

Yes, this is what I finally discovered.

Doug Whitfield at 2017-11-07T13:12:45Z