[0] 0.91.189.137.in-addr.arpa.: domain name does not exist
[3600] 1.91.189.137.in-addr.arpa. domain name pointer pc91001.cse.cuhk.edu.hk
[3600] 2.91.189.137.in-addr.arpa. domain name pointer pc91002.cse.cuhk.edu.hk
[3600] 3.91.189.137.in-addr.arpa. domain name pointer pc91003.cse.cuhk.edu.hk
[3600] 4.91.189.137.in-addr.arpa. domain name pointer pc91004.cse.cuhk.edu.hk
[3600] 5.91.189.137.in-addr.arpa. domain name pointer pc91005.cse.cuhk.edu.hk
[3600] 6.91.189.137.in-addr.arpa. domain name pointer pc91006.cse.cuhk.edu.hk
[3600] 7.91.189.137.in-addr.arpa. domain name pointer pc91007.cse.cuhk.edu.hk
[3600] 8.91.189.137.in-addr.arpa. domain name pointer pc91008.cse.cuhk.edu.hk
[3600] 9.91.189.137.in-addr.arpa. domain name pointer pc91009.cse.cuhk.edu.hk
[3600] 10.91.189.137.in-addr.arpa. domain name pointer pc91010.cse.cuhk.edu.hk
[3600] 11.91.189.137.in-addr.arpa. domain name pointer pc91011.cse.cuhk.edu.hk
[3600] 12.91.189.137.in-addr.arpa. domain name pointer pc91012.cse.cuhk.edu.hk
[3600] 13.91.189.137.in-addr.arpa. domain name pointer pc91013.cse.cuhk.edu.hk
[3600] 14.91.189.137.in-addr.arpa. domain name pointer pc91014.cse.cuhk.edu.hk
[3600] 15.91.189.137.in-addr.arpa. domain name pointer pc91015.cse.cuhk.edu.hk
[3600] 16.91.189.137.in-addr.arpa. domain name pointer pc91016.cse.cuhk.edu.hk
[3600] 17.91.189.137.in-addr.arpa. domain name pointer pc91017.cse.cuhk.edu.hk
[3600] 18.91.189.137.in-addr.arpa. domain name pointer pc91018.cse.cuhk.edu.hk
[3600] 19.91.189.137.in-addr.arpa. domain name pointer pc91019.cse.cuhk.edu.hk
[3600] 20.91.189.137.in-addr.arpa. domain name pointer pc91020.cse.cuhk.edu.hk
[3600] 21.91.189.137.in-addr.arpa. domain name pointer pc91021.cse.cuhk.edu.hk
[3600] 22.91.189.137.in-addr.arpa. domain name pointer pc91022.cse.cuhk.edu.hk
[3600] 23.91.189.137.in-addr.arpa. domain name pointer pc91023.cse.cuhk.edu.hk
[3600] 24.91.189.137.in-addr.arpa. domain name pointer pc91024.cse.cuhk.edu.hk
[3600] 25.91.189.137.in-addr.arpa. domain name pointer pc91025.cse.cuhk.edu.hk
[3600] 26.91.189.137.in-addr.arpa. domain name pointer pc91026.cse.cuhk.edu.hk
[3600] 27.91.189.137.in-addr.arpa. domain name pointer pc91027.cse.cuhk.edu.hk
[3600] 28.91.189.137.in-addr.arpa. domain name pointer pc91028.cse.cuhk.edu.hk
[3600] 29.91.189.137.in-addr.arpa. domain name pointer pc91029.cse.cuhk.edu.hk
[3600] 30.91.189.137.in-addr.arpa. domain name pointer pc91030.cse.cuhk.edu.hk
[3600] 31.91.189.137.in-addr.arpa. domain name pointer pc91031.cse.cuhk.edu.hk
[3600] 32.91.189.137.in-addr.arpa. domain name pointer hibiscus.cse.cuhk.edu.hk
[3600] 33.91.189.137.in-addr.arpa. domain name pointer lotus.cse.cuhk.edu.hk
[3600] 34.91.189.137.in-addr.arpa. domain name pointer pansy.cse.cuhk.edu.hk
[3600] 35.91.189.137.in-addr.arpa. domain name pointer freesia.cse.cuhk.edu.hk
[3600] 36.91.189.137.in-addr.arpa. domain name pointer rose.cse.cuhk.edu.hk
[3600] 37.91.189.137.in-addr.arpa. domain name pointer daffodil.cse.cuhk.edu.hk
[3600] 38.91.189.137.in-addr.arpa. domain name pointer bonsai.cse.cuhk.edu.hk
[3600] 39.91.189.137.in-addr.arpa. domain name pointer hyacinth.cse.cuhk.edu.hk
[3600] 40.91.189.137.in-addr.arpa. domain name pointer camellia.cse.cuhk.edu.hk
[3600] 41.91.189.137.in-addr.arpa. domain name pointer tulip.cse.cuhk.edu.hk
[3600] 42.91.189.137.in-addr.arpa. domain name pointer primula.cse.cuhk.edu.hk
[3600] 43.91.189.137.in-addr.arpa. domain name pointer lilac.cse.cuhk.edu.hk
[3600] 44.91.189.137.in-addr.arpa. domain name pointer lily.cse.cuhk.edu.hk
[3600] 45.91.189.137.in-addr.arpa. domain name pointer fuchsia.cse.cuhk.edu.hk
[3600] 46.91.189.137.in-addr.arpa. domain name pointer hoya.cse.cuhk.edu.hk
[3600] 47.91.189.137.in-addr.arpa. domain name pointer geranium.cse.cuhk.edu.hk
[3600] 48.91.189.137.in-addr.arpa. domain name pointer crocus.cse.cuhk.edu.hk
[3600] 49.91.189.137.in-addr.arpa. domain name pointer cattleya.cse.cuhk.edu.hk
[3600] 50.91.189.137.in-addr.arpa. domain name pointer ivy.cse.cuhk.edu.hk
[3600] 51.91.189.137.in-addr.arpa. domain name pointer basil.cse.cuhk.edu.hk
[3600] 52.91.189.137.in-addr.arpa. domain name pointer dahlia.cse.cuhk.edu.hk
[3600] 53.91.189.137.in-addr.arpa. domain name pointer azalea.cse.cuhk.edu.hk
[3600] 54.91.189.137.in-addr.arpa. domain name pointer cyclamen.cse.cuhk.edu.hk
[3600] 55.91.189.137.in-addr.arpa. domain name pointer iris.cse.cuhk.edu.hk
[3600] 56.91.189.137.in-addr.arpa. domain name pointer peony.cse.cuhk.edu.hk
[3600] 57.91.189.137.in-addr.arpa. domain name pointer bluebell.cse.cuhk.edu.hk
[3600] 58.91.189.137.in-addr.arpa. domain name pointer bauhinia.cse.cuhk.edu.hk
[3600] 59.91.189.137.in-addr.arpa. domain name pointer snowdrop.cse.cuhk.edu.hk
[3600] 60.91.189.137.in-addr.arpa. domain name pointer orchid.cse.cuhk.edu.hk
[3600] 61.91.189.137.in-addr.arpa. domain name pointer pc91061.cse.cuhk.edu.hk
[3600] 62.91.189.137.in-addr.arpa. domain name pointer pc91062.cse.cuhk.edu.hk
[3600] 63.91.189.137.in-addr.arpa. domain name pointer pc91063.cse.cuhk.edu.hk
[3600] 64.91.189.137.in-addr.arpa. domain name pointer pc91064.cse.cuhk.edu.hk
[3600] 65.91.189.137.in-addr.arpa. domain name pointer pc91065.cse.cuhk.edu.hk
[3600] 66.91.189.137.in-addr.arpa. domain name pointer pc91066.cse.cuhk.edu.hk
[3600] 67.91.189.137.in-addr.arpa. domain name pointer pc91067.cse.cuhk.edu.hk
[3600] 68.91.189.137.in-addr.arpa. domain name pointer pc91068.cse.cuhk.edu.hk
[3600] 69.91.189.137.in-addr.arpa. domain name pointer pc91069.cse.cuhk.edu.hk
[3600] 70.91.189.137.in-addr.arpa. domain name pointer pc91070.cse.cuhk.edu.hk
[3600] 71.91.189.137.in-addr.arpa. domain name pointer pc91071.cse.cuhk.edu.hk
[3600] 72.91.189.137.in-addr.arpa. domain name pointer pc91072.cse.cuhk.edu.hk
[3600] 73.91.189.137.in-addr.arpa. domain name pointer pc91073.cse.cuhk.edu.hk
[3600] 74.91.189.137.in-addr.arpa. domain name pointer pc91074.cse.cuhk.edu.hk
[3600] 75.91.189.137.in-addr.arpa. domain name pointer pc91075.cse.cuhk.edu.hk
[3600] 76.91.189.137.in-addr.arpa. domain name pointer pc91076.cse.cuhk.edu.hk
[3600] 77.91.189.137.in-addr.arpa. domain name pointer pc91077.cse.cuhk.edu.hk
[3600] 78.91.189.137.in-addr.arpa. domain name pointer pc91078.cse.cuhk.edu.hk
[3600] 79.91.189.137.in-addr.arpa. domain name pointer pc91079.cse.cuhk.edu.hk
[3600] 80.91.189.137.in-addr.arpa. domain name pointer pc91080.cse.cuhk.edu.hk
[3600] 81.91.189.137.in-addr.arpa. domain name pointer pc91081.cse.cuhk.edu.hk
[3600] 82.91.189.137.in-addr.arpa. domain name pointer pc91082.cse.cuhk.edu.hk
[3600] 83.91.189.137.in-addr.arpa. domain name pointer pc91083.cse.cuhk.edu.hk
[3600] 84.91.189.137.in-addr.arpa. domain name pointer pc91084.cse.cuhk.edu.hk
[3600] 85.91.189.137.in-addr.arpa. domain name pointer pc91085.cse.cuhk.edu.hk
[3600] 86.91.189.137.in-addr.arpa. domain name pointer pc91086.cse.cuhk.edu.hk
[3600] 87.91.189.137.in-addr.arpa. domain name pointer pc91087.cse.cuhk.edu.hk
[3600] 88.91.189.137.in-addr.arpa. domain name pointer pc91088.cse.cuhk.edu.hk
[3600] 89.91.189.137.in-addr.arpa. domain name pointer pc91089.cse.cuhk.edu.hk
[3600] 90.91.189.137.in-addr.arpa. domain name pointer pc91090.cse.cuhk.edu.hk
[3600] 91.91.189.137.in-addr.arpa. domain name pointer pc91091.cse.cuhk.edu.hk
[3600] 92.91.189.137.in-addr.arpa. domain name pointer pc91092.cse.cuhk.edu.hk
[3600] 93.91.189.137.in-addr.arpa. domain name pointer pc91093.cse.cuhk.edu.hk
[3600] 94.91.189.137.in-addr.arpa. domain name pointer pc91094.cse.cuhk.edu.hk
[3600] 95.91.189.137.in-addr.arpa. domain name pointer pc91095.cse.cuhk.edu.hk
[3600] 96.91.189.137.in-addr.arpa. domain name pointer pc91096.cse.cuhk.edu.hk
[3600] 97.91.189.137.in-addr.arpa. domain name pointer ntsvr7.cse.cuhk.edu.hk
[3600] 98.91.189.137.in-addr.arpa. domain name pointer ntsvr1.cse.cuhk.edu.hk
[3600] 99.91.189.137.in-addr.arpa. domain name pointer pc91099.cse.cuhk.edu.hk
[3600] 100.91.189.137.in-addr.arpa. domain name pointer pc91100.cse.cuhk.edu.hk
[3600] 101.91.189.137.in-addr.arpa. domain name pointer pc91101.cse.cuhk.edu.hk
[3600] 102.91.189.137.in-addr.arpa. domain name pointer pc91102.cse.cuhk.edu.hk
[3600] 103.91.189.137.in-addr.arpa. domain name pointer pc91103.cse.cuhk.edu.hk
[3600] 104.91.189.137.in-addr.arpa. domain name pointer pc91104.cse.cuhk.edu.hk
[3600] 105.91.189.137.in-addr.arpa. domain name pointer pc91105.cse.cuhk.edu.hk
[3600] 106.91.189.137.in-addr.arpa. domain name pointer pc91106.cse.cuhk.edu.hk
[3600] 107.91.189.137.in-addr.arpa. domain name pointer pc91107.cse.cuhk.edu.hk
[3600] 108.91.189.137.in-addr.arpa. domain name pointer pc91108.cse.cuhk.edu.hk
[3600] 109.91.189.137.in-addr.arpa. domain name pointer pc91109.cse.cuhk.edu.hk
[3600] 110.91.189.137.in-addr.arpa. domain name pointer nextslab.cse.cuhk.edu.hk
[3600] 111.91.189.137.in-addr.arpa. domain name pointer ntserver1-csd.cse.cuhk.edu.hk
[3600] 112.91.189.137.in-addr.arpa. domain name pointer ntsvr2.cse.cuhk.edu.hk
[3600] 113.91.189.137.in-addr.arpa. domain name pointer ntsvr3.cse.cuhk.edu.hk
[3600] 114.91.189.137.in-addr.arpa. domain name pointer ntsvr4.cse.cuhk.edu.hk
[3600] 115.91.189.137.in-addr.arpa. domain name pointer ntsvr5.cse.cuhk.edu.hk
[3600] 116.91.189.137.in-addr.arpa. domain name pointer cdts.cse.cuhk.edu.hk
[3600] 117.91.189.137.in-addr.arpa. domain name pointer serverb-csd.cse.cuhk.edu.hk
[0] 118.91.189.137.in-addr.arpa.: domain name does not exist
[3600] 119.91.189.137.in-addr.arpa. domain name pointer ntsvr9.cse.cuhk.edu.hk
[3600] 120.91.189.137.in-addr.arpa. domain name pointer servera-csd.cse.cuhk.edu.hk
[3600] 121.91.189.137.in-addr.arpa. domain name pointer pc91121.cse.cuhk.edu.hk
[3600] 122.91.189.137.in-addr.arpa. domain name pointer pc91122.cse.cuhk.edu.hk
[3600] 123.91.189.137.in-addr.arpa. domain name pointer pc91123.cse.cuhk.edu.hk
[3600] 124.91.189.137.in-addr.arpa. domain name pointer pc91124.cse.cuhk.edu.hk
[3600] 125.91.189.137.in-addr.arpa. domain name pointer pc91125.cse.cuhk.edu.hk
[3600] 126.91.189.137.in-addr.arpa. domain name pointer pc91126.cse.cuhk.edu.hk
[3600] 127.91.189.137.in-addr.arpa. domain name pointer pc91127.cse.cuhk.edu.hk
[3600] 128.91.189.137.in-addr.arpa. domain name pointer pc91128.cse.cuhk.edu.hk
[3600] 129.91.189.137.in-addr.arpa. domain name pointer pc91129.cse.cuhk.edu.hk
[3600] 130.91.189.137.in-addr.arpa. domain name pointer pc91130.cse.cuhk.edu.hk
[3600] 131.91.189.137.in-addr.arpa. domain name pointer pc91131.cse.cuhk.edu.hk
[3600] 132.91.189.137.in-addr.arpa. domain name pointer pc91132.cse.cuhk.edu.hk
[3600] 133.91.189.137.in-addr.arpa. domain name pointer pc91133.cse.cuhk.edu.hk
[3600] 134.91.189.137.in-addr.arpa. domain name pointer pc91134.cse.cuhk.edu.hk
[3600] 135.91.189.137.in-addr.arpa. domain name pointer pc91135.cse.cuhk.edu.hk
[3600] 136.91.189.137.in-addr.arpa. domain name pointer pc91136.cse.cuhk.edu.hk
[3600] 137.91.189.137.in-addr.arpa. domain name pointer pc91137.cse.cuhk.edu.hk
[3600] 138.91.189.137.in-addr.arpa. domain name pointer pc91138.cse.cuhk.edu.hk
[3600] 139.91.189.137.in-addr.arpa. domain name pointer pc91139.cse.cuhk.edu.hk
[0] 140.91.189.137.in-addr.arpa.: domain name does not exist
[3600] 141.91.189.137.in-addr.arpa. domain name pointer pc91141.cse.cuhk.edu.hk
[3600] 142.91.189.137.in-addr.arpa. domain name pointer pc91142.cse.cuhk.edu.hk
[3600] 143.91.189.137.in-addr.arpa. domain name pointer pc91143.cse.cuhk.edu.hk
[3600] 144.91.189.137.in-addr.arpa. domain name pointer pc91144.cse.cuhk.edu.hk
[3600] 145.91.189.137.in-addr.arpa. domain name pointer pc91145.cse.cuhk.edu.hk
[3600] 146.91.189.137.in-addr.arpa. domain name pointer pc91146.cse.cuhk.edu.hk
[3600] 147.91.189.137.in-addr.arpa. domain name pointer pc91147.cse.cuhk.edu.hk
[3600] 148.91.189.137.in-addr.arpa. domain name pointer pc91148.cse.cuhk.edu.hk
[3600] 149.91.189.137.in-addr.arpa. domain name pointer modem29.cse.cuhk.edu.hk
[3600] 150.91.189.137.in-addr.arpa. domain name pointer modem9.cse.cuhk.edu.hk
[3600] 151.91.189.137.in-addr.arpa. domain name pointer castle.cse.cuhk.edu.hk
[3600] 152.91.189.137.in-addr.arpa. domain name pointer pc91152.cse.cuhk.edu.hk
[3600] 153.91.189.137.in-addr.arpa. domain name pointer emerald.cse.cuhk.edu.hk
[3600] 154.91.189.137.in-addr.arpa. domain name pointer pc91154.cse.cuhk.edu.hk
[3600] 155.91.189.137.in-addr.arpa. domain name pointer pc91155.cse.cuhk.edu.hk
[3600] 156.91.189.137.in-addr.arpa. domain name pointer pc91156.cse.cuhk.edu.hk
[3600] 157.91.189.137.in-addr.arpa. domain name pointer pc91157.cse.cuhk.edu.hk
[3600] 158.91.189.137.in-addr.arpa. domain name pointer pc91158.cse.cuhk.edu.hk
[3600] 159.91.189.137.in-addr.arpa. domain name pointer pc91159.cse.cuhk.edu.hk
[3600] 160.91.189.137.in-addr.arpa. domain name pointer pc91160.cse.cuhk.edu.hk
[3600] 161.91.189.137.in-addr.arpa. domain name pointer pc91161.cse.cuhk.edu.hk
[3600] 162.91.189.137.in-addr.arpa. domain name pointer pc91162.cse.cuhk.edu.hk
[3600] 163.91.189.137.in-addr.arpa. domain name pointer pc91163.cse.cuhk.edu.hk
[3600] 164.91.189.137.in-addr.arpa. domain name pointer tomcat.cse.cuhk.edu.hk
[3600] 165.91.189.137.in-addr.arpa. domain name pointer venture.cse.cuhk.edu.hk
[3600] 166.91.189.137.in-addr.arpa. domain name pointer fokker.cse.cuhk.edu.hk
[3600] 167.91.189.137.in-addr.arpa. domain name pointer pc91167.cse.cuhk.edu.hk
[3600] 168.91.189.137.in-addr.arpa. domain name pointer mines.cse.cuhk.edu.hk
[3600] 169.91.189.137.in-addr.arpa. domain name pointer pc91169.cse.cuhk.edu.hk
[3600] 170.91.189.137.in-addr.arpa. domain name pointer linbackup.cse.cuhk.edu.hk
[3600] 171.91.189.137.in-addr.arpa. domain name pointer oak.cse.cuhk.edu.hk
[3600] 172.91.189.137.in-addr.arpa. domain name pointer pc91172.cse.cuhk.edu.hk
[3600] 173.91.189.137.in-addr.arpa. domain name pointer pc91173.cse.cuhk.edu.hk
[3600] 174.91.189.137.in-addr.arpa. domain name pointer viking.cse.cuhk.edu.hk
[3600] 175.91.189.137.in-addr.arpa. domain name pointer fly.cse.cuhk.edu.hk
[3600] 176.91.189.137.in-addr.arpa. domain name pointer rover.cse.cuhk.edu.hk
[3600] 177.91.189.137.in-addr.arpa. domain name pointer titan.cse.cuhk.edu.hk
[3600] 178.91.189.137.in-addr.arpa. domain name pointer pc91178.cse.cuhk.edu.hk
[3600] 179.91.189.137.in-addr.arpa. domain name pointer miranda.cse.cuhk.edu.hk
[3600] 180.91.189.137.in-addr.arpa. domain name pointer pc91180.cse.cuhk.edu.hk
[3600] 181.91.189.137.in-addr.arpa. domain name pointer ocean.cse.cuhk.edu.hk
[3600] 182.91.189.137.in-addr.arpa. domain name pointer license.cse.cuhk.edu.hk
[3600] 183.91.189.137.in-addr.arpa. domain name pointer jade.cse.cuhk.edu.hk
[3600] 184.91.189.137.in-addr.arpa. domain name pointer falcon.cse.cuhk.edu.hk
[3600] 185.91.189.137.in-addr.arpa. domain name pointer pearl.cse.cuhk.edu.hk
[3600] 186.91.189.137.in-addr.arpa. domain name pointer universe.cse.cuhk.edu.hk
[3600] 187.91.189.137.in-addr.arpa. domain name pointer beryl.cse.cuhk.edu.hk
[3600] 188.91.189.137.in-addr.arpa. domain name pointer garden.cse.cuhk.edu.hk
[3600] 189.91.189.137.in-addr.arpa. domain name pointer sapphire.cse.cuhk.edu.hk
[3600] 190.91.189.137.in-addr.arpa. domain name pointer cucs18.cse.cuhk.edu.hk
[3600] 191.91.189.137.in-addr.arpa. domain name pointer obsidian.cse.cuhk.edu.hk
[3600] 192.91.189.137.in-addr.arpa. domain name pointer fortress.cse.cuhk.edu.hk
[3600] 193.91.189.137.in-addr.arpa. domain name pointer amethyst.cse.cuhk.edu.hk
[3600] 194.91.189.137.in-addr.arpa. domain name pointer uranus.cse.cuhk.edu.hk
[3600] 195.91.189.137.in-addr.arpa. domain name pointer sardonyx.cse.cuhk.edu.hk
[3600] 196.91.189.137.in-addr.arpa. domain name pointer neptune.cse.cuhk.edu.hk
[3600] 197.91.189.137.in-addr.arpa. domain name pointer mars.cse.cuhk.edu.hk
[3600] 198.91.189.137.in-addr.arpa. domain name pointer jupiter.cse.cuhk.edu.hk
[3600] 199.91.189.137.in-addr.arpa. domain name pointer comet.cse.cuhk.edu.hk
[3600] 200.91.189.137.in-addr.arpa. domain name pointer venus.cse.cuhk.edu.hk
[3600] 201.91.189.137.in-addr.arpa. domain name pointer atlas.cse.cuhk.edu.hk
[3600] 202.91.189.137.in-addr.arpa. domain name pointer monster.cse.cuhk.edu.hk
[3600] 203.91.189.137.in-addr.arpa. domain name pointer pandora.cse.cuhk.edu.hk
[3600] 204.91.189.137.in-addr.arpa. domain name pointer oberon.cse.cuhk.edu.hk
[3600] 205.91.189.137.in-addr.arpa. domain name pointer r6506.cse.cuhk.edu.hk
[3600] 206.91.189.137.in-addr.arpa. domain name pointer c3550-1.cse.cuhk.edu.hk
[3600] 207.91.189.137.in-addr.arpa. domain name pointer c3550-2.cse.cuhk.edu.hk
[3600] 208.91.189.137.in-addr.arpa. domain name pointer c3550-3.cse.cuhk.edu.hk
[3600] 209.91.189.137.in-addr.arpa. domain name pointer c3550-4.cse.cuhk.edu.hk
[3600] 210.91.189.137.in-addr.arpa. domain name pointer c3550-5.cse.cuhk.edu.hk
[3600] 211.91.189.137.in-addr.arpa. domain name pointer c3500-3.cse.cuhk.edu.hk
[3600] 212.91.189.137.in-addr.arpa. domain name pointer c3500-4.cse.cuhk.edu.hk
[3600] 213.91.189.137.in-addr.arpa. domain name pointer c3500-5.cse.cuhk.edu.hk
[3600] 214.91.189.137.in-addr.arpa. domain name pointer c3500-6.cse.cuhk.edu.hk
[3600] 215.91.189.137.in-addr.arpa. domain name pointer c3550-8.cse.cuhk.edu.hk
[3600] 216.91.189.137.in-addr.arpa. domain name pointer c3550-14.cse.cuhk.edu.hk
[3600] 217.91.189.137.in-addr.arpa. domain name pointer c2900-2.cse.cuhk.edu.hk
[3600] 218.91.189.137.in-addr.arpa. domain name pointer c2900-3.cse.cuhk.edu.hk
[3600] 219.91.189.137.in-addr.arpa. domain name pointer c2900-4.cse.cuhk.edu.hk
[3600] 220.91.189.137.in-addr.arpa. domain name pointer c2900-5.cse.cuhk.edu.hk
[3600] 221.91.189.137.in-addr.arpa. domain name pointer c2900-6.cse.cuhk.edu.hk
[3600] 222.91.189.137.in-addr.arpa. domain name pointer cs7206.cse.cuhk.edu.hk
[3600] 223.91.189.137.in-addr.arpa. domain name pointer cisco1.cse.cuhk.edu.hk
[3600] 224.91.189.137.in-addr.arpa. domain name pointer c3550-13.cse.cuhk.edu.hk
[3600] 225.91.189.137.in-addr.arpa. domain name pointer c3750-1.cse.cuhk.edu.hk
[3600] 226.91.189.137.in-addr.arpa. domain name pointer bs350-3.cse.cuhk.edu.hk
[3600] 227.91.189.137.in-addr.arpa. domain name pointer bs350-4.cse.cuhk.edu.hk
[3600] 228.91.189.137.in-addr.arpa. domain name pointer c3550-12.cse.cuhk.edu.hk
[3600] 229.91.189.137.in-addr.arpa. domain name pointer c2950-1.cse.cuhk.edu.hk
[3600] 230.91.189.137.in-addr.arpa. domain name pointer c2900-7.cse.cuhk.edu.hk
[3600] 231.91.189.137.in-addr.arpa. domain name pointer c2900-8.cse.cuhk.edu.hk
[3600] 232.91.189.137.in-addr.arpa. domain name pointer c2900-9.cse.cuhk.edu.hk
[3600] 233.91.189.137.in-addr.arpa. domain name pointer c2900-10.cse.cuhk.edu.hk
[3600] 234.91.189.137.in-addr.arpa. domain name pointer c3500-1.cse.cuhk.edu.hk
[3600] 235.91.189.137.in-addr.arpa. domain name pointer c3500-2.cse.cuhk.edu.hk
[3600] 236.91.189.137.in-addr.arpa. domain name pointer c6506.cse.cuhk.edu.hk
[3600] 237.91.189.137.in-addr.arpa. domain name pointer c3550-11.cse.cuhk.edu.hk
[3600] 238.91.189.137.in-addr.arpa. domain name pointer cs7200-1.cse.cuhk.edu.hk
[3600] 239.91.189.137.in-addr.arpa. domain name pointer cs7206-1.cse.cuhk.edu.hk
[3600] 240.91.189.137.in-addr.arpa. domain name pointer cs7200.cse.cuhk.edu.hk
[3600] 241.91.189.137.in-addr.arpa. domain name pointer c3750-2.cse.cuhk.edu.hk
[3600] 242.91.189.137.in-addr.arpa. domain name pointer c3550-7.cse.cuhk.edu.hk
[3600] 243.91.189.137.in-addr.arpa. domain name pointer bs350-9.cse.cuhk.edu.hk
[3600] 244.91.189.137.in-addr.arpa. domain name pointer c3550-10.cse.cuhk.edu.hk
[3600] 245.91.189.137.in-addr.arpa. domain name pointer c3550-6.cse.cuhk.edu.hk
[3600] 246.91.189.137.in-addr.arpa. domain name pointer c2900-1.cse.cuhk.edu.hk
[3600] 247.91.189.137.in-addr.arpa. domain name pointer c5509.cse.cuhk.edu.hk
[3600] 248.91.189.137.in-addr.arpa. domain name pointer c3550-9.cse.cuhk.edu.hk
[0] 249.91.189.137.in-addr.arpa.: domain name does not exist
[0] 250.91.189.137.in-addr.arpa.: domain name does not exist
[0] 251.91.189.137.in-addr.arpa.: domain name does not exist
[0] 252.91.189.137.in-addr.arpa.: domain name does not exist
[0] 253.91.189.137.in-addr.arpa.: domain name does not exist
[3600] 254.91.189.137.in-addr.arpa. domain name pointer router.cse.cuhk.edu.hk
[0] 255.91.189.137.in-addr.arpa.: domain name does not exist