node lied to me. Maybe?
$ node
> var os = require('os')
undefined
> os.networkInterfaces()
{ lo0:
[ { address: 'fe80::1',
family: 'IPv6',
internal: true },
{ address: '127.0.0.1',
family: 'IPv4',
internal: true },
{ address: '::1',
family: 'IPv6',
internal: true } ],
en0:
[ { address: 'fe80::1610:9fff:fed3:b059',
family: 'IPv6',
internal: false },
{ address: '192.168.0.201',
family: 'IPv4',
internal: false } ] }
>