watchNS/www.lib.city.bunkyo.lg.jpについて、ここに記述してください。
http://www.tcn-catv.co.jp/ が関係しているのか。
%dnsq a www.lib.city.bunkyo.lg.jp a.dns.jp
1 www.lib.city.bunkyo.lg.jp: 122 bytes, 1+0+2+2 records, response, noerror query: 1 www.lib.city.bunkyo.lg.jp authority: city.bunkyo.lg.jp 86400 NS ns2.tcn-catv.ne.jp authority: city.bunkyo.lg.jp 86400 NS ns.city.bunkyo.lg.jp additional: ns.city.bunkyo.lg.jp 86400 A 219.118.112.4 additional: ns2.tcn-catv.ne.jp 86400 A 219.109.192.104
%dnsq a www.lib.city.bunkyo.lg.jp 219.118.112.4
1 www.lib.city.bunkyo.lg.jp: 172 bytes, 1+1+3+3 records, response, authoritative, noerror query: 1 www.lib.city.bunkyo.lg.jp answer: www.lib.city.bunkyo.lg.jp 3600 A 180.222.90.143 authority: lib.city.bunkyo.lg.jp 3600 NS ns.city.bunkyo.lg.jp authority: lib.city.bunkyo.lg.jp 3600 NS ns2.city.bunkyo.lg.jp authority: lib.city.bunkyo.lg.jp 3600 NS ns2.tcn-catv.ne.jp additional: ns.city.bunkyo.lg.jp 3600 A 219.118.112.4 additional: ns2.city.bunkyo.lg.jp 3600 A 219.118.113.4 additional: ns2.tcn-catv.ne.jp 45136 A 219.109.192.104
%dnsq a www.lib.city.bunkyo.lg.jp 219.109.192.104
1 www.lib.city.bunkyo.lg.jp: 59 bytes, 1+1+0+0 records, response, authoritative, noerror query: 1 www.lib.city.bunkyo.lg.jp answer: www.lib.city.bunkyo.lg.jp 3600 A 180.222.90.143
%dnsq a www.lib.city.bunkyo.lg.jp 219.118.113.4
1 www.lib.city.bunkyo.lg.jp: 156 bytes, 1+1+3+2 records, response, authoritative, noerror query: 1 www.lib.city.bunkyo.lg.jp answer: www.lib.city.bunkyo.lg.jp 3600 A 180.222.90.143 authority: lib.city.bunkyo.lg.jp 3600 NS ns.city.bunkyo.lg.jp authority: lib.city.bunkyo.lg.jp 3600 NS ns2.city.bunkyo.lg.jp authority: lib.city.bunkyo.lg.jp 3600 NS ns2.tcn-catv.ne.jp additional: ns.city.bunkyo.lg.jp 3600 A 219.118.112.4 additional: ns2.city.bunkyo.lg.jp 3600 A 219.118.113.4
%dnsq a www.tcn-catv.co.jp a.dns.jp
1 www.tcn-catv.co.jp: 104 bytes, 1+0+2+2 records, response, noerror query: 1 www.tcn-catv.co.jp authority: tcn-catv.co.jp 86400 NS ns1.tcn-catv.co.jp authority: tcn-catv.co.jp 86400 NS ns2.tcn-catv.co.jp additional: ns1.tcn-catv.co.jp 86400 A 219.109.192.103 additional: ns2.tcn-catv.co.jp 86400 A 219.109.192.104
%dnsq a www.tcn-catv.co.jp 219.109.192.103
1 www.tcn-catv.co.jp: 52 bytes, 1+1+0+0 records, response, authoritative, noerror query: 1 www.tcn-catv.co.jp answer: www.tcn-catv.co.jp 1800 A 180.222.90.143