Support more variants of specifying an IPv6 address to listen to
Support more variants of specifying an IPv6 address to listen to

gofort/geodns,anuaimi/geodns,anuaimi/geodns,abligh/geodns,gofort/geodns,anuaimi/geodns,abh/geodns,abh/geodns,abligh/geodns,abligh/geodns,gofort/geodns