[0] 0.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 1.146.82.157.in-addr.arpa. domain name pointer cw2-3gw.iis.u-tokyo.ac.jp
[86400] 2.146.82.157.in-addr.arpa. domain name pointer csw02-r1.iis.u-tokyo.ac.jp
[86400] 3.146.82.157.in-addr.arpa. domain name pointer csw03-r1.iis.u-tokyo.ac.jp
[0] 4.146.82.157.in-addr.arpa.: domain name does not exist
[0] 5.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 6.146.82.157.in-addr.arpa. domain name pointer htpr1.iis.u-tokyo.ac.jp
[86400] 7.146.82.157.in-addr.arpa. domain name pointer htpr2.iis.u-tokyo.ac.jp
[0] 8.146.82.157.in-addr.arpa.: domain name does not exist
[0] 9.146.82.157.in-addr.arpa.: domain name does not exist
[0] 10.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 11.146.82.157.in-addr.arpa. domain name pointer htw.iis.u-tokyo.ac.jp
[0] 12.146.82.157.in-addr.arpa.: domain name does not exist
[0] 13.146.82.157.in-addr.arpa.: domain name does not exist
[0] 14.146.82.157.in-addr.arpa.: domain name does not exist
[0] 15.146.82.157.in-addr.arpa.: domain name does not exist
[0] 16.146.82.157.in-addr.arpa.: domain name does not exist
[0] 17.146.82.157.in-addr.arpa.: domain name does not exist
[0] 18.146.82.157.in-addr.arpa.: domain name does not exist
[0] 19.146.82.157.in-addr.arpa.: domain name does not exist
[0] 20.146.82.157.in-addr.arpa.: domain name does not exist
[0] 21.146.82.157.in-addr.arpa.: domain name does not exist
[0] 22.146.82.157.in-addr.arpa.: domain name does not exist
[0] 23.146.82.157.in-addr.arpa.: domain name does not exist
[0] 24.146.82.157.in-addr.arpa.: domain name does not exist
[0] 25.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 26.146.82.157.in-addr.arpa. domain name pointer htw1.iis.u-tokyo.ac.jp
[0] 27.146.82.157.in-addr.arpa.: domain name does not exist
[0] 28.146.82.157.in-addr.arpa.: domain name does not exist
[0] 29.146.82.157.in-addr.arpa.: domain name does not exist
[0] 30.146.82.157.in-addr.arpa.: domain name does not exist
[0] 31.146.82.157.in-addr.arpa.: domain name does not exist
[0] 32.146.82.157.in-addr.arpa.: domain name does not exist
[0] 33.146.82.157.in-addr.arpa.: domain name does not exist
[0] 34.146.82.157.in-addr.arpa.: domain name does not exist
[0] 35.146.82.157.in-addr.arpa.: domain name does not exist
[0] 36.146.82.157.in-addr.arpa.: domain name does not exist
[0] 37.146.82.157.in-addr.arpa.: domain name does not exist
[0] 38.146.82.157.in-addr.arpa.: domain name does not exist
[0] 39.146.82.157.in-addr.arpa.: domain name does not exist
[0] 40.146.82.157.in-addr.arpa.: domain name does not exist
[0] 41.146.82.157.in-addr.arpa.: domain name does not exist
[0] 42.146.82.157.in-addr.arpa.: domain name does not exist
[0] 43.146.82.157.in-addr.arpa.: domain name does not exist
[0] 44.146.82.157.in-addr.arpa.: domain name does not exist
[0] 45.146.82.157.in-addr.arpa.: domain name does not exist
[0] 46.146.82.157.in-addr.arpa.: domain name does not exist
[0] 47.146.82.157.in-addr.arpa.: domain name does not exist
[0] 48.146.82.157.in-addr.arpa.: domain name does not exist
[0] 49.146.82.157.in-addr.arpa.: domain name does not exist
[0] 50.146.82.157.in-addr.arpa.: domain name does not exist
[0] 51.146.82.157.in-addr.arpa.: domain name does not exist
[0] 52.146.82.157.in-addr.arpa.: domain name does not exist
[0] 53.146.82.157.in-addr.arpa.: domain name does not exist
[0] 54.146.82.157.in-addr.arpa.: domain name does not exist
[0] 55.146.82.157.in-addr.arpa.: domain name does not exist
[0] 56.146.82.157.in-addr.arpa.: domain name does not exist
[0] 57.146.82.157.in-addr.arpa.: domain name does not exist
[0] 58.146.82.157.in-addr.arpa.: domain name does not exist
[0] 59.146.82.157.in-addr.arpa.: domain name does not exist
[0] 60.146.82.157.in-addr.arpa.: domain name does not exist
[0] 61.146.82.157.in-addr.arpa.: domain name does not exist
[0] 62.146.82.157.in-addr.arpa.: domain name does not exist
[0] 63.146.82.157.in-addr.arpa.: domain name does not exist
[0] 64.146.82.157.in-addr.arpa.: domain name does not exist
[0] 65.146.82.157.in-addr.arpa.: domain name does not exist
[0] 66.146.82.157.in-addr.arpa.: domain name does not exist
[0] 67.146.82.157.in-addr.arpa.: domain name does not exist
[0] 68.146.82.157.in-addr.arpa.: domain name does not exist
[0] 69.146.82.157.in-addr.arpa.: domain name does not exist
[0] 70.146.82.157.in-addr.arpa.: domain name does not exist
[0] 71.146.82.157.in-addr.arpa.: domain name does not exist
[0] 72.146.82.157.in-addr.arpa.: domain name does not exist
[0] 73.146.82.157.in-addr.arpa.: domain name does not exist
[0] 74.146.82.157.in-addr.arpa.: domain name does not exist
[0] 75.146.82.157.in-addr.arpa.: domain name does not exist
[0] 76.146.82.157.in-addr.arpa.: domain name does not exist
[0] 77.146.82.157.in-addr.arpa.: domain name does not exist
[0] 78.146.82.157.in-addr.arpa.: domain name does not exist
[0] 79.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 80.146.82.157.in-addr.arpa. domain name pointer dhcp-146-80.iis.u-tokyo.ac.jp
[86400] 81.146.82.157.in-addr.arpa. domain name pointer dhcp-146-81.iis.u-tokyo.ac.jp
[86400] 82.146.82.157.in-addr.arpa. domain name pointer dhcp-146-82.iis.u-tokyo.ac.jp
[86400] 83.146.82.157.in-addr.arpa. domain name pointer dhcp-146-83.iis.u-tokyo.ac.jp
[86400] 84.146.82.157.in-addr.arpa. domain name pointer dhcp-146-84.iis.u-tokyo.ac.jp
[86400] 85.146.82.157.in-addr.arpa. domain name pointer dhcp-146-85.iis.u-tokyo.ac.jp
[86400] 86.146.82.157.in-addr.arpa. domain name pointer dhcp-146-86.iis.u-tokyo.ac.jp
[86400] 87.146.82.157.in-addr.arpa. domain name pointer dhcp-146-87.iis.u-tokyo.ac.jp
[86400] 88.146.82.157.in-addr.arpa. domain name pointer dhcp-146-88.iis.u-tokyo.ac.jp
[86400] 89.146.82.157.in-addr.arpa. domain name pointer dhcp-146-89.iis.u-tokyo.ac.jp
[86400] 90.146.82.157.in-addr.arpa. domain name pointer dhcp-146-90.iis.u-tokyo.ac.jp
[86400] 91.146.82.157.in-addr.arpa. domain name pointer dhcp-146-91.iis.u-tokyo.ac.jp
[86400] 92.146.82.157.in-addr.arpa. domain name pointer dhcp-146-92.iis.u-tokyo.ac.jp
[86400] 93.146.82.157.in-addr.arpa. domain name pointer dhcp-146-93.iis.u-tokyo.ac.jp
[86400] 94.146.82.157.in-addr.arpa. domain name pointer dhcp-146-94.iis.u-tokyo.ac.jp
[86400] 95.146.82.157.in-addr.arpa. domain name pointer dhcp-146-95.iis.u-tokyo.ac.jp
[86400] 96.146.82.157.in-addr.arpa. domain name pointer dhcp-146-96.iis.u-tokyo.ac.jp
[86400] 97.146.82.157.in-addr.arpa. domain name pointer dhcp-146-97.iis.u-tokyo.ac.jp
[86400] 98.146.82.157.in-addr.arpa. domain name pointer dhcp-146-98.iis.u-tokyo.ac.jp
[86400] 99.146.82.157.in-addr.arpa. domain name pointer dhcp-146-99.iis.u-tokyo.ac.jp
[86400] 100.146.82.157.in-addr.arpa. domain name pointer dhcp-146-100.iis.u-tokyo.ac.jp
[86400] 101.146.82.157.in-addr.arpa. domain name pointer dhcp-146-101.iis.u-tokyo.ac.jp
[86400] 102.146.82.157.in-addr.arpa. domain name pointer dhcp-146-102.iis.u-tokyo.ac.jp
[86400] 103.146.82.157.in-addr.arpa. domain name pointer dhcp-146-103.iis.u-tokyo.ac.jp
[86400] 104.146.82.157.in-addr.arpa. domain name pointer dhcp-146-104.iis.u-tokyo.ac.jp
[86400] 105.146.82.157.in-addr.arpa. domain name pointer dhcp-146-105.iis.u-tokyo.ac.jp
[86400] 106.146.82.157.in-addr.arpa. domain name pointer dhcp-146-106.iis.u-tokyo.ac.jp
[86400] 107.146.82.157.in-addr.arpa. domain name pointer dhcp-146-107.iis.u-tokyo.ac.jp
[86400] 108.146.82.157.in-addr.arpa. domain name pointer dhcp-146-108.iis.u-tokyo.ac.jp
[86400] 109.146.82.157.in-addr.arpa. domain name pointer dhcp-146-109.iis.u-tokyo.ac.jp
[86400] 110.146.82.157.in-addr.arpa. domain name pointer dhcp-146-110.iis.u-tokyo.ac.jp
[86400] 111.146.82.157.in-addr.arpa. domain name pointer dhcp-146-111.iis.u-tokyo.ac.jp
[86400] 112.146.82.157.in-addr.arpa. domain name pointer dhcp-146-112.iis.u-tokyo.ac.jp
[86400] 113.146.82.157.in-addr.arpa. domain name pointer dhcp-146-113.iis.u-tokyo.ac.jp
[86400] 114.146.82.157.in-addr.arpa. domain name pointer dhcp-146-114.iis.u-tokyo.ac.jp
[86400] 115.146.82.157.in-addr.arpa. domain name pointer dhcp-146-115.iis.u-tokyo.ac.jp
[86400] 116.146.82.157.in-addr.arpa. domain name pointer dhcp-146-116.iis.u-tokyo.ac.jp
[86400] 117.146.82.157.in-addr.arpa. domain name pointer dhcp-146-117.iis.u-tokyo.ac.jp
[86400] 118.146.82.157.in-addr.arpa. domain name pointer dhcp-146-118.iis.u-tokyo.ac.jp
[86400] 119.146.82.157.in-addr.arpa. domain name pointer dhcp-146-119.iis.u-tokyo.ac.jp
[86400] 120.146.82.157.in-addr.arpa. domain name pointer dhcp-146-120.iis.u-tokyo.ac.jp
[86400] 121.146.82.157.in-addr.arpa. domain name pointer dhcp-146-121.iis.u-tokyo.ac.jp
[86400] 122.146.82.157.in-addr.arpa. domain name pointer dhcp-146-122.iis.u-tokyo.ac.jp
[86400] 123.146.82.157.in-addr.arpa. domain name pointer dhcp-146-123.iis.u-tokyo.ac.jp
[86400] 124.146.82.157.in-addr.arpa. domain name pointer dhcp-146-124.iis.u-tokyo.ac.jp
[86400] 125.146.82.157.in-addr.arpa. domain name pointer dhcp-146-125.iis.u-tokyo.ac.jp
[86400] 126.146.82.157.in-addr.arpa. domain name pointer dhcp-146-126.iis.u-tokyo.ac.jp
[0] 127.146.82.157.in-addr.arpa.: domain name does not exist
[0] 128.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 129.146.82.157.in-addr.arpa. domain name pointer toshogw.iis.u-tokyo.ac.jp
[86400] 130.146.82.157.in-addr.arpa. domain name pointer csw02-r1.iis.u-tokyo.ac.jp
[86400] 131.146.82.157.in-addr.arpa. domain name pointer csw03-r1.iis.u-tokyo.ac.jp
[0] 132.146.82.157.in-addr.arpa.: domain name does not exist
[0] 133.146.82.157.in-addr.arpa.: domain name does not exist
[0] 134.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 135.146.82.157.in-addr.arpa. domain name pointer libjimu-1.iis.u-tokyo.ac.jp
[86400] 136.146.82.157.in-addr.arpa. domain name pointer libjimu-7.iis.u-tokyo.ac.jp
[86400] 137.146.82.157.in-addr.arpa. domain name pointer libjimu-8.iis.u-tokyo.ac.jp
[86400] 138.146.82.157.in-addr.arpa. domain name pointer libmado-1.iis.u-tokyo.ac.jp
[0] 139.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 140.146.82.157.in-addr.arpa. domain name pointer etsuran-3.iis.u-tokyo.ac.jp
[86400] 141.146.82.157.in-addr.arpa. domain name pointer eturan-4.iis.u-tokyo.ac.jp
[86400] 142.146.82.157.in-addr.arpa. domain name pointer eturan-5.iis.u-tokyo.ac.jp
[0] 143.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 144.146.82.157.in-addr.arpa. domain name pointer libjimu-4.iis.u-tokyo.ac.jp
[0] 145.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 146.146.82.157.in-addr.arpa. domain name pointer cc521.iis.u-tokyo.ac.jp
[86400] 147.146.82.157.in-addr.arpa. domain name pointer cc522.iis.u-tokyo.ac.jp
[86400] 148.146.82.157.in-addr.arpa. domain name pointer cc523.iis.u-tokyo.ac.jp
[86400] 149.146.82.157.in-addr.arpa. domain name pointer eturanprt.iis.u-tokyo.ac.jp
[86400] 150.146.82.157.in-addr.arpa. domain name pointer faxprinter.iis.u-tokyo.ac.jp
[86400] 151.146.82.157.in-addr.arpa. domain name pointer colorprinter.iis.u-tokyo.ac.jp
[0] 152.146.82.157.in-addr.arpa.: domain name does not exist
[0] 153.146.82.157.in-addr.arpa.: domain name does not exist
[0] 154.146.82.157.in-addr.arpa.: domain name does not exist
[0] 155.146.82.157.in-addr.arpa.: domain name does not exist
[0] 156.146.82.157.in-addr.arpa.: domain name does not exist
[0] 157.146.82.157.in-addr.arpa.: domain name does not exist
[0] 158.146.82.157.in-addr.arpa.: domain name does not exist
[0] 159.146.82.157.in-addr.arpa.: domain name does not exist
[0] 160.146.82.157.in-addr.arpa.: domain name does not exist
[0] 161.146.82.157.in-addr.arpa.: domain name does not exist
[0] 162.146.82.157.in-addr.arpa.: domain name does not exist
[0] 163.146.82.157.in-addr.arpa.: domain name does not exist
[0] 164.146.82.157.in-addr.arpa.: domain name does not exist
[0] 165.146.82.157.in-addr.arpa.: domain name does not exist
[0] 166.146.82.157.in-addr.arpa.: domain name does not exist
[0] 167.146.82.157.in-addr.arpa.: domain name does not exist
[0] 168.146.82.157.in-addr.arpa.: domain name does not exist
[0] 169.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 170.146.82.157.in-addr.arpa. domain name pointer dhcp-146-170.iis.u-tokyo.ac.jp
[86400] 171.146.82.157.in-addr.arpa. domain name pointer dhcp-146-171.iis.u-tokyo.ac.jp
[86400] 172.146.82.157.in-addr.arpa. domain name pointer dhcp-146-172.iis.u-tokyo.ac.jp
[86400] 173.146.82.157.in-addr.arpa. domain name pointer dhcp-146-173.iis.u-tokyo.ac.jp
[86400] 174.146.82.157.in-addr.arpa. domain name pointer dhcp-146-174.iis.u-tokyo.ac.jp
[86400] 175.146.82.157.in-addr.arpa. domain name pointer dhcp-146-175.iis.u-tokyo.ac.jp
[86400] 176.146.82.157.in-addr.arpa. domain name pointer dhcp-146-176.iis.u-tokyo.ac.jp
[86400] 177.146.82.157.in-addr.arpa. domain name pointer dhcp-146-177.iis.u-tokyo.ac.jp
[86400] 178.146.82.157.in-addr.arpa. domain name pointer dhcp-146-178.iis.u-tokyo.ac.jp
[86400] 179.146.82.157.in-addr.arpa. domain name pointer dhcp-146-179.iis.u-tokyo.ac.jp
[86400] 180.146.82.157.in-addr.arpa. domain name pointer dhcp-146-180.iis.u-tokyo.ac.jp
[86400] 181.146.82.157.in-addr.arpa. domain name pointer dhcp-146-181.iis.u-tokyo.ac.jp
[86400] 182.146.82.157.in-addr.arpa. domain name pointer dhcp-146-182.iis.u-tokyo.ac.jp
[86400] 183.146.82.157.in-addr.arpa. domain name pointer dhcp-146-183.iis.u-tokyo.ac.jp
[86400] 184.146.82.157.in-addr.arpa. domain name pointer dhcp-146-184.iis.u-tokyo.ac.jp
[86400] 185.146.82.157.in-addr.arpa. domain name pointer dhcp-146-185.iis.u-tokyo.ac.jp
[86400] 186.146.82.157.in-addr.arpa. domain name pointer dhcp-146-186.iis.u-tokyo.ac.jp
[86400] 187.146.82.157.in-addr.arpa. domain name pointer dhcp-146-187.iis.u-tokyo.ac.jp
[86400] 188.146.82.157.in-addr.arpa. domain name pointer dhcp-146-188.iis.u-tokyo.ac.jp
[86400] 189.146.82.157.in-addr.arpa. domain name pointer dhcp-146-189.iis.u-tokyo.ac.jp
[86400] 190.146.82.157.in-addr.arpa. domain name pointer dhcp-146-190.iis.u-tokyo.ac.jp
[0] 191.146.82.157.in-addr.arpa.: domain name does not exist
[0] 192.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 193.146.82.157.in-addr.arpa. domain name pointer tosho2fgw.iis.u-tokyo.ac.jp
[86400] 194.146.82.157.in-addr.arpa. domain name pointer csw02-r1.iis.u-tokyo.ac.jp
[86400] 195.146.82.157.in-addr.arpa. domain name pointer csw03-r1.iis.u-tokyo.ac.jp
[86400] 196.146.82.157.in-addr.arpa. domain name pointer iism-printer.iis.u-tokyo.ac.jp
[86400] 197.146.82.157.in-addr.arpa. domain name pointer shimada.iis.u-tokyo.ac.jp
[86400] 198.146.82.157.in-addr.arpa. domain name pointer chuetsu-print.iis.u-tokyo.ac.jp
[86400] 199.146.82.157.in-addr.arpa. domain name pointer chuetsu-coprint.iis.u-tokyo.ac.jp
[86400] 200.146.82.157.in-addr.arpa. domain name pointer chuetsu-scan.iis.u-tokyo.ac.jp
[0] 201.146.82.157.in-addr.arpa.: domain name does not exist
[0] 202.146.82.157.in-addr.arpa.: domain name does not exist
[0] 203.146.82.157.in-addr.arpa.: domain name does not exist
[0] 204.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 205.146.82.157.in-addr.arpa. domain name pointer faxl208.iis.u-tokyo.ac.jp
[86400] 206.146.82.157.in-addr.arpa. domain name pointer mmprn3.iis.u-tokyo.ac.jp
[86400] 207.146.82.157.in-addr.arpa. domain name pointer mmprn4.iis.u-tokyo.ac.jp
[0] 208.146.82.157.in-addr.arpa.: domain name does not exist
[0] 209.146.82.157.in-addr.arpa.: domain name does not exist
[0] 210.146.82.157.in-addr.arpa.: domain name does not exist
[0] 211.146.82.157.in-addr.arpa.: domain name does not exist
[0] 212.146.82.157.in-addr.arpa.: domain name does not exist
[0] 213.146.82.157.in-addr.arpa.: domain name does not exist
[0] 214.146.82.157.in-addr.arpa.: domain name does not exist
[0] 215.146.82.157.in-addr.arpa.: domain name does not exist
[0] 216.146.82.157.in-addr.arpa.: domain name does not exist
[0] 217.146.82.157.in-addr.arpa.: domain name does not exist
[0] 218.146.82.157.in-addr.arpa.: domain name does not exist
[0] 219.146.82.157.in-addr.arpa.: domain name does not exist
[0] 220.146.82.157.in-addr.arpa.: domain name does not exist
[0] 221.146.82.157.in-addr.arpa.: domain name does not exist
[0] 222.146.82.157.in-addr.arpa.: domain name does not exist
[0] 223.146.82.157.in-addr.arpa.: domain name does not exist
[0] 224.146.82.157.in-addr.arpa.: domain name does not exist
[0] 225.146.82.157.in-addr.arpa.: domain name does not exist
[0] 226.146.82.157.in-addr.arpa.: domain name does not exist
[0] 227.146.82.157.in-addr.arpa.: domain name does not exist
[0] 228.146.82.157.in-addr.arpa.: domain name does not exist
[0] 229.146.82.157.in-addr.arpa.: domain name does not exist
[86400] 230.146.82.157.in-addr.arpa. domain name pointer dhcp-146-230.iis.u-tokyo.ac.jp
[86400] 231.146.82.157.in-addr.arpa. domain name pointer dhcp-146-231.iis.u-tokyo.ac.jp
[86400] 232.146.82.157.in-addr.arpa. domain name pointer dhcp-146-232.iis.u-tokyo.ac.jp
[86400] 233.146.82.157.in-addr.arpa. domain name pointer dhcp-146-233.iis.u-tokyo.ac.jp
[86400] 234.146.82.157.in-addr.arpa. domain name pointer dhcp-146-234.iis.u-tokyo.ac.jp
[86400] 235.146.82.157.in-addr.arpa. domain name pointer dhcp-146-235.iis.u-tokyo.ac.jp
[86400] 236.146.82.157.in-addr.arpa. domain name pointer dhcp-146-236.iis.u-tokyo.ac.jp
[86400] 237.146.82.157.in-addr.arpa. domain name pointer dhcp-146-237.iis.u-tokyo.ac.jp
[86400] 238.146.82.157.in-addr.arpa. domain name pointer dhcp-146-238.iis.u-tokyo.ac.jp
[86400] 239.146.82.157.in-addr.arpa. domain name pointer dhcp-146-239.iis.u-tokyo.ac.jp
[86400] 240.146.82.157.in-addr.arpa. domain name pointer dhcp-146-240.iis.u-tokyo.ac.jp
[86400] 241.146.82.157.in-addr.arpa. domain name pointer dhcp-146-241.iis.u-tokyo.ac.jp
[86400] 242.146.82.157.in-addr.arpa. domain name pointer dhcp-146-242.iis.u-tokyo.ac.jp
[86400] 243.146.82.157.in-addr.arpa. domain name pointer dhcp-146-243.iis.u-tokyo.ac.jp
[86400] 244.146.82.157.in-addr.arpa. domain name pointer dhcp-146-244.iis.u-tokyo.ac.jp
[86400] 245.146.82.157.in-addr.arpa. domain name pointer dhcp-146-245.iis.u-tokyo.ac.jp
[86400] 246.146.82.157.in-addr.arpa. domain name pointer dhcp-146-246.iis.u-tokyo.ac.jp
[86400] 247.146.82.157.in-addr.arpa. domain name pointer dhcp-146-247.iis.u-tokyo.ac.jp
[86400] 248.146.82.157.in-addr.arpa. domain name pointer dhcp-146-248.iis.u-tokyo.ac.jp
[86400] 249.146.82.157.in-addr.arpa. domain name pointer dhcp-146-249.iis.u-tokyo.ac.jp
[86400] 250.146.82.157.in-addr.arpa. domain name pointer dhcp-146-250.iis.u-tokyo.ac.jp
[86400] 251.146.82.157.in-addr.arpa. domain name pointer dhcp-146-251.iis.u-tokyo.ac.jp
[86400] 252.146.82.157.in-addr.arpa. domain name pointer dhcp-146-252.iis.u-tokyo.ac.jp
[86400] 253.146.82.157.in-addr.arpa. domain name pointer dhcp-146-253.iis.u-tokyo.ac.jp
[86400] 254.146.82.157.in-addr.arpa. domain name pointer dhcp-146-254.iis.u-tokyo.ac.jp
[0] 255.146.82.157.in-addr.arpa.: domain name does not exist