mao.5ch.net. 300 IN A 104.20.26.96
mao.5ch.net. 300 IN AAAA 2400:cb00:2048:1::6814:1a60

ipv6.5ch.net. 300 IN A 206.223.156.231
;ipv6.5ch.net. IN AAAA

IPv6 (IPv6 とは言ってない)