IPv6/google.comについて、ここに記述してください。
1. google IPv6 の実態
$ dnsqr aaaa ipv6.google.com
28 ipv6.google.com: 82 bytes, 1+2+0+0 records, response, noerror query: 28 ipv6.google.com answer: ipv6.google.com 604702 CNAME ipv6.l.google.com answer: ipv6.l.google.com 300 AAAA 2404:6800:8002::69
http://[2404:6800:8002::69]:80
ただし、www.google.com へリダイレクトされるだけ。
- あとはIPv4の世界らしい。
-- ToshinoriMaeno 2011-09-06 03:56:10
2. DNS 検索してみる
%dnsqr 28 www.google.com
28 www.google.com: 102 bytes, 1+1+1+0 records, response, noerror query: 28 www.google.com answer: www.google.com 604564 CNAME www.l.google.com authority: l.google.com 364 SOA ns1.google.com dns-admin.google.com 1461423 900 900 1800 60
%dnsqr 28 www.l.google.com
28 www.l.google.com: 84 bytes, 1+0+1+0 records, response, noerror query: 28 www.l.google.com authority: l.google.com 355 SOA ns1.google.com dns-admin.google.com 1461423 900 900 1800 60
%dnsqr any www.l.google.com
255 www.l.google.com: 130 bytes, 1+6+0+0 records, response, noerror query: 255 www.l.google.com answer: www.l.google.com 300 A 74.125.31.147 answer: www.l.google.com 300 A 74.125.31.99 answer: www.l.google.com 300 A 74.125.31.106 answer: www.l.google.com 300 A 74.125.31.103 answer: www.l.google.com 300 A 74.125.31.104 answer: www.l.google.com 300 A 74.125.31.105