24 Feb
2020
24 Feb
'20
8:18 a.m.
Perhaps not only "which local network", as in customary 127.0.0.0/8, but may be useful to some as being flexibly narrow to "which IP and port", as in 127.201.52.38:843, for IPv6 as well. Some OS / VM may utilize beyond concept of just 127.0.0.1 and ::1.
The special registries should probably be noted in the manpage / examples... https://www.iana.org/numbers