addrinfo.ipv6? => true or false
Instance Public methods
returns true if addrinfo is IPv6 address. returns false otherwise.
Addrinfo.tcp("127.0.0.1", 80).ipv6? #=> false
Addrinfo.tcp("::1", 80).ipv6? #=> true
Addrinfo.unix("/tmp/sock").ipv6? #=> false