watchNS/i.u-tokyo.ac.jpについて、ここに記述してください。
%dig -t ns i.u-tokyo.ac.jp @133.11.0.1
; <<>> DiG 9.9.0 <<>> -t ns i.u-tokyo.ac.jp @133.11.0.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1821 ;; flags: qr aa rd; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 10 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;i.u-tokyo.ac.jp. IN NS ;; ANSWER SECTION: i.u-tokyo.ac.jp. 86400 IN NS dns3.nc.u-tokyo.ac.jp. i.u-tokyo.ac.jp. 86400 IN NS dns2.nc.u-tokyo.ac.jp. i.u-tokyo.ac.jp. 86400 IN NS dns1.nc.u-tokyo.ac.jp. i.u-tokyo.ac.jp. 86400 IN NS i-ns.i.u-tokyo.ac.jp. ;; ADDITIONAL SECTION: dns1.nc.u-tokyo.ac.jp. 3600 IN A 133.11.0.1 dns1.nc.u-tokyo.ac.jp. 3600 IN AAAA 2001:200:180::35:1 dns1.nc.u-tokyo.ac.jp. 3600 IN AAAA 2001:200:180:80::46 dns2.nc.u-tokyo.ac.jp. 3600 IN A 219.166.230.42 dns2.nc.u-tokyo.ac.jp. 3600 IN AAAA 2001:380:1ab::35:2 dns3.nc.u-tokyo.ac.jp. 3600 IN A 157.82.0.1 dns3.nc.u-tokyo.ac.jp. 3600 IN AAAA 2001:200:180:26::35 dns3.nc.u-tokyo.ac.jp. 3600 IN AAAA 2001:200:180::35:3 i-ns.i.u-tokyo.ac.jp. 86400 IN A 133.11.232.71 ;; Query time: 7 msec ;; SERVER: 133.11.0.1#53(133.11.0.1) ;; WHEN: Wed May 13 19:26:09 2015 ;; MSG SIZE rcvd: 327