Support for multiple IPv6 addresses.

[martinheidegger]

Some interfaces (only on windows?) support multiple IP's for multiple subnets when using IPv6:

Example:

{ address: '2f03:f2c0:ef01:301:b1d7:fb47:42e1:9258', netmask: 'ffff:ffff:ffff:ffff::', family: 'IPv6', mac: '6a:71:2a:05:01:2b', internal: false, cidr: '2f03:f2c0:ef01:301:b1d7:fb47:42e1:9258/64', scopeid: 0 },
{ address: '2f03:f2c0:ef01:301:6130:7a42:e05e:2c61', netmask: 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff', family: 'IPv6', mac: '6a:71:2a:05:01:2b', internal: false, cidr: '2f03:f2c0:ef01:301:6130:7a42:e05e:2c61/128', scopeid: 0 },

It seems that this is necessary to be differently addressable outside/behind a firewall, which means that for public communication the less specific IP is more important.