[0] 0.91.37.138.in-addr.arpa.: domain name does not exist
[1800] 1.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-1.dcs.qmul.ac.uk
[1800] 2.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-2.dcs.qmul.ac.uk
[1800] 3.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-3.dcs.qmul.ac.uk
[1800] 4.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-4.dcs.qmul.ac.uk
[1800] 5.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-5.dcs.qmul.ac.uk
[1800] 6.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-6.dcs.qmul.ac.uk
[1800] 7.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-7.dcs.qmul.ac.uk
[1800] 8.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-8.dcs.qmul.ac.uk
[1800] 9.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-9.dcs.qmul.ac.uk
[1800] 10.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-10.dcs.qmul.ac.uk
[1800] 11.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-11.dcs.qmul.ac.uk
[1800] 12.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-12.dcs.qmul.ac.uk
[1800] 13.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-13.dcs.qmul.ac.uk
[1800] 14.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-14.dcs.qmul.ac.uk
[1800] 15.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-15.dcs.qmul.ac.uk
[1800] 16.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-16.dcs.qmul.ac.uk
[1800] 17.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-17.dcs.qmul.ac.uk
[1800] 18.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-18.dcs.qmul.ac.uk
[1800] 19.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-19.dcs.qmul.ac.uk
[1800] 20.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-20.dcs.qmul.ac.uk
[1800] 21.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-21.dcs.qmul.ac.uk
[1800] 22.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-22.dcs.qmul.ac.uk
[1800] 23.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-23.dcs.qmul.ac.uk
[1800] 24.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-24.dcs.qmul.ac.uk
[1800] 25.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-25.dcs.qmul.ac.uk
[1800] 26.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-26.dcs.qmul.ac.uk
[1800] 27.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-27.dcs.qmul.ac.uk
[1800] 28.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-28.dcs.qmul.ac.uk
[1800] 29.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-29.dcs.qmul.ac.uk
[1800] 30.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-30.dcs.qmul.ac.uk
[1800] 31.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-31.dcs.qmul.ac.uk
[1800] 32.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-32.dcs.qmul.ac.uk
[1800] 33.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-33.dcs.qmul.ac.uk
[1800] 34.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-34.dcs.qmul.ac.uk
[1800] 35.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-35.dcs.qmul.ac.uk
[1800] 36.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-36.dcs.qmul.ac.uk
[1800] 37.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-37.dcs.qmul.ac.uk
[1800] 38.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-38.dcs.qmul.ac.uk
[1800] 39.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-39.dcs.qmul.ac.uk
[1800] 40.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-40.dcs.qmul.ac.uk
[1800] 41.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-41.dcs.qmul.ac.uk
[1800] 42.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-42.dcs.qmul.ac.uk
[1800] 43.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-43.dcs.qmul.ac.uk
[1800] 44.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-44.dcs.qmul.ac.uk
[1800] 45.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-45.dcs.qmul.ac.uk
[1800] 46.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-46.dcs.qmul.ac.uk
[1800] 47.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-47.dcs.qmul.ac.uk
[1800] 48.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-48.dcs.qmul.ac.uk
[1800] 49.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-49.dcs.qmul.ac.uk
[1800] 50.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-50.dcs.qmul.ac.uk
[1800] 51.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-51.dcs.qmul.ac.uk
[1800] 52.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-52.dcs.qmul.ac.uk
[1800] 53.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-53.dcs.qmul.ac.uk
[1800] 54.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-54.dcs.qmul.ac.uk
[1800] 55.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-55.dcs.qmul.ac.uk
[1800] 56.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-56.dcs.qmul.ac.uk
[1800] 57.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-57.dcs.qmul.ac.uk
[1800] 58.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-58.dcs.qmul.ac.uk
[1800] 59.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-59.dcs.qmul.ac.uk
[1800] 60.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-60.dcs.qmul.ac.uk
[1800] 61.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-61.dcs.qmul.ac.uk
[1800] 62.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-62.dcs.qmul.ac.uk
[1800] 63.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-63.dcs.qmul.ac.uk
[1800] 64.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-64.dcs.qmul.ac.uk
[1800] 65.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-65.dcs.qmul.ac.uk
[1800] 66.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-66.dcs.qmul.ac.uk
[1800] 67.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-67.dcs.qmul.ac.uk
[1800] 68.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-68.dcs.qmul.ac.uk
[1800] 69.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-69.dcs.qmul.ac.uk
[1800] 70.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-70.dcs.qmul.ac.uk
[1800] 71.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-71.dcs.qmul.ac.uk
[1800] 72.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-72.dcs.qmul.ac.uk
[1800] 73.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-73.dcs.qmul.ac.uk
[1800] 74.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-74.dcs.qmul.ac.uk
[1800] 75.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-75.dcs.qmul.ac.uk
[1800] 76.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-76.dcs.qmul.ac.uk
[1800] 77.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-77.dcs.qmul.ac.uk
[1800] 78.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-78.dcs.qmul.ac.uk
[1800] 79.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-79.dcs.qmul.ac.uk
[1800] 80.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-80.dcs.qmul.ac.uk
[1800] 81.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-81.dcs.qmul.ac.uk
[1800] 82.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-82.dcs.qmul.ac.uk
[1800] 83.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-83.dcs.qmul.ac.uk
[1800] 84.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-84.dcs.qmul.ac.uk
[1800] 85.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-85.dcs.qmul.ac.uk
[1800] 86.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-86.dcs.qmul.ac.uk
[1800] 87.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-87.dcs.qmul.ac.uk
[1800] 88.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-88.dcs.qmul.ac.uk
[1800] 89.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-89.dcs.qmul.ac.uk
[1800] 90.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-90.dcs.qmul.ac.uk
[1800] 91.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-91.dcs.qmul.ac.uk
[1800] 92.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-92.dcs.qmul.ac.uk
[1800] 93.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-93.dcs.qmul.ac.uk
[1800] 94.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-94.dcs.qmul.ac.uk
[1800] 95.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-95.dcs.qmul.ac.uk
[1800] 96.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-96.dcs.qmul.ac.uk
[1800] 97.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-97.dcs.qmul.ac.uk
[1800] 98.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-98.dcs.qmul.ac.uk
[1800] 99.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-99.dcs.qmul.ac.uk
[1800] 100.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-100.dcs.qmul.ac.uk
[1800] 101.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-101.dcs.qmul.ac.uk
[1800] 102.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-102.dcs.qmul.ac.uk
[1800] 103.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-103.dcs.qmul.ac.uk
[1800] 104.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-104.dcs.qmul.ac.uk
[1800] 105.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-105.dcs.qmul.ac.uk
[1800] 106.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-106.dcs.qmul.ac.uk
[1800] 107.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-107.dcs.qmul.ac.uk
[1800] 108.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-108.dcs.qmul.ac.uk
[1800] 109.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-109.dcs.qmul.ac.uk
[1800] 110.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-110.dcs.qmul.ac.uk
[1800] 111.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-111.dcs.qmul.ac.uk
[1800] 112.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-112.dcs.qmul.ac.uk
[1800] 113.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-113.dcs.qmul.ac.uk
[1800] 114.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-114.dcs.qmul.ac.uk
[1800] 115.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-115.dcs.qmul.ac.uk
[1800] 116.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-116.dcs.qmul.ac.uk
[1800] 117.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-117.dcs.qmul.ac.uk
[1800] 118.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-118.dcs.qmul.ac.uk
[1800] 119.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-119.dcs.qmul.ac.uk
[1800] 120.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-120.dcs.qmul.ac.uk
[1800] 121.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-121.dcs.qmul.ac.uk
[1800] 122.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-122.dcs.qmul.ac.uk
[1800] 123.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-123.dcs.qmul.ac.uk
[1800] 124.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-124.dcs.qmul.ac.uk
[1800] 125.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-125.dcs.qmul.ac.uk
[1800] 126.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-126.dcs.qmul.ac.uk
[1800] 127.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-127.dcs.qmul.ac.uk
[1800] 128.91.37.138.in-addr.arpa. domain name pointer hst138-37-91-128.dcs.qmul.ac.uk
[0] 129.91.37.138.in-addr.arpa.: domain name does not exist
[0] 130.91.37.138.in-addr.arpa.: domain name does not exist
[0] 131.91.37.138.in-addr.arpa.: domain name does not exist
[0] 132.91.37.138.in-addr.arpa.: domain name does not exist
[0] 133.91.37.138.in-addr.arpa.: domain name does not exist
[0] 134.91.37.138.in-addr.arpa.: domain name does not exist
[0] 135.91.37.138.in-addr.arpa.: domain name does not exist
[0] 136.91.37.138.in-addr.arpa.: domain name does not exist
[0] 137.91.37.138.in-addr.arpa.: domain name does not exist
[0] 138.91.37.138.in-addr.arpa.: domain name does not exist
[0] 139.91.37.138.in-addr.arpa.: domain name does not exist
[0] 140.91.37.138.in-addr.arpa.: domain name does not exist
[0] 141.91.37.138.in-addr.arpa.: domain name does not exist
[0] 142.91.37.138.in-addr.arpa.: domain name does not exist
[0] 143.91.37.138.in-addr.arpa.: domain name does not exist
[0] 144.91.37.138.in-addr.arpa.: domain name does not exist
[0] 145.91.37.138.in-addr.arpa.: domain name does not exist
[0] 146.91.37.138.in-addr.arpa.: domain name does not exist
[0] 147.91.37.138.in-addr.arpa.: domain name does not exist
[0] 148.91.37.138.in-addr.arpa.: domain name does not exist
[0] 149.91.37.138.in-addr.arpa.: domain name does not exist
[0] 150.91.37.138.in-addr.arpa.: domain name does not exist
[0] 151.91.37.138.in-addr.arpa.: domain name does not exist
[0] 152.91.37.138.in-addr.arpa.: domain name does not exist
[0] 153.91.37.138.in-addr.arpa.: domain name does not exist
[0] 154.91.37.138.in-addr.arpa.: domain name does not exist
[0] 155.91.37.138.in-addr.arpa.: domain name does not exist
[0] 156.91.37.138.in-addr.arpa.: domain name does not exist
[0] 157.91.37.138.in-addr.arpa.: domain name does not exist
[0] 158.91.37.138.in-addr.arpa.: domain name does not exist
[0] 159.91.37.138.in-addr.arpa.: domain name does not exist
[0] 160.91.37.138.in-addr.arpa.: domain name does not exist
[0] 161.91.37.138.in-addr.arpa.: domain name does not exist
[0] 162.91.37.138.in-addr.arpa.: domain name does not exist
[0] 163.91.37.138.in-addr.arpa.: domain name does not exist
[0] 164.91.37.138.in-addr.arpa.: domain name does not exist
[0] 165.91.37.138.in-addr.arpa.: domain name does not exist
[0] 166.91.37.138.in-addr.arpa.: domain name does not exist
[0] 167.91.37.138.in-addr.arpa.: domain name does not exist
[0] 168.91.37.138.in-addr.arpa.: domain name does not exist
[0] 169.91.37.138.in-addr.arpa.: domain name does not exist
[0] 170.91.37.138.in-addr.arpa.: domain name does not exist
[0] 171.91.37.138.in-addr.arpa.: domain name does not exist
[0] 172.91.37.138.in-addr.arpa.: domain name does not exist
[0] 173.91.37.138.in-addr.arpa.: domain name does not exist
[0] 174.91.37.138.in-addr.arpa.: domain name does not exist
[0] 175.91.37.138.in-addr.arpa.: domain name does not exist
[0] 176.91.37.138.in-addr.arpa.: domain name does not exist
[0] 177.91.37.138.in-addr.arpa.: domain name does not exist
[0] 178.91.37.138.in-addr.arpa.: domain name does not exist
[0] 179.91.37.138.in-addr.arpa.: domain name does not exist
[0] 180.91.37.138.in-addr.arpa.: domain name does not exist
[0] 181.91.37.138.in-addr.arpa.: domain name does not exist
[0] 182.91.37.138.in-addr.arpa.: domain name does not exist
[0] 183.91.37.138.in-addr.arpa.: domain name does not exist
[0] 184.91.37.138.in-addr.arpa.: domain name does not exist
[0] 185.91.37.138.in-addr.arpa.: domain name does not exist
[0] 186.91.37.138.in-addr.arpa.: domain name does not exist
[0] 187.91.37.138.in-addr.arpa.: domain name does not exist
[0] 188.91.37.138.in-addr.arpa.: domain name does not exist
[0] 189.91.37.138.in-addr.arpa.: domain name does not exist
[0] 190.91.37.138.in-addr.arpa.: domain name does not exist
[0] 191.91.37.138.in-addr.arpa.: domain name does not exist
[0] 192.91.37.138.in-addr.arpa.: domain name does not exist
[0] 193.91.37.138.in-addr.arpa.: domain name does not exist
[0] 194.91.37.138.in-addr.arpa.: domain name does not exist
[0] 195.91.37.138.in-addr.arpa.: domain name does not exist
[0] 196.91.37.138.in-addr.arpa.: domain name does not exist
[0] 197.91.37.138.in-addr.arpa.: domain name does not exist
[0] 198.91.37.138.in-addr.arpa.: domain name does not exist
[0] 199.91.37.138.in-addr.arpa.: domain name does not exist
[0] 200.91.37.138.in-addr.arpa.: domain name does not exist
[0] 201.91.37.138.in-addr.arpa.: domain name does not exist
[0] 202.91.37.138.in-addr.arpa.: domain name does not exist
[0] 203.91.37.138.in-addr.arpa.: domain name does not exist
[0] 204.91.37.138.in-addr.arpa.: domain name does not exist
[0] 205.91.37.138.in-addr.arpa.: domain name does not exist
[0] 206.91.37.138.in-addr.arpa.: domain name does not exist
[0] 207.91.37.138.in-addr.arpa.: domain name does not exist
[0] 208.91.37.138.in-addr.arpa.: domain name does not exist
[0] 209.91.37.138.in-addr.arpa.: domain name does not exist
[0] 210.91.37.138.in-addr.arpa.: domain name does not exist
[0] 211.91.37.138.in-addr.arpa.: domain name does not exist
[0] 212.91.37.138.in-addr.arpa.: domain name does not exist
[0] 213.91.37.138.in-addr.arpa.: domain name does not exist
[0] 214.91.37.138.in-addr.arpa.: domain name does not exist
[0] 215.91.37.138.in-addr.arpa.: domain name does not exist
[0] 216.91.37.138.in-addr.arpa.: domain name does not exist
[0] 217.91.37.138.in-addr.arpa.: domain name does not exist
[0] 218.91.37.138.in-addr.arpa.: domain name does not exist
[0] 219.91.37.138.in-addr.arpa.: domain name does not exist
[0] 220.91.37.138.in-addr.arpa.: domain name does not exist
[0] 221.91.37.138.in-addr.arpa.: domain name does not exist
[0] 222.91.37.138.in-addr.arpa.: domain name does not exist
[0] 223.91.37.138.in-addr.arpa.: domain name does not exist
[0] 224.91.37.138.in-addr.arpa.: domain name does not exist
[0] 225.91.37.138.in-addr.arpa.: domain name does not exist
[0] 226.91.37.138.in-addr.arpa.: domain name does not exist
[0] 227.91.37.138.in-addr.arpa.: domain name does not exist
[0] 228.91.37.138.in-addr.arpa.: domain name does not exist
[0] 229.91.37.138.in-addr.arpa.: domain name does not exist
[0] 230.91.37.138.in-addr.arpa.: domain name does not exist
[0] 231.91.37.138.in-addr.arpa.: domain name does not exist
[0] 232.91.37.138.in-addr.arpa.: domain name does not exist
[0] 233.91.37.138.in-addr.arpa.: domain name does not exist
[0] 234.91.37.138.in-addr.arpa.: domain name does not exist
[0] 235.91.37.138.in-addr.arpa.: domain name does not exist
[0] 236.91.37.138.in-addr.arpa.: domain name does not exist
[0] 237.91.37.138.in-addr.arpa.: domain name does not exist
[0] 238.91.37.138.in-addr.arpa.: domain name does not exist
[0] 239.91.37.138.in-addr.arpa.: domain name does not exist
[0] 240.91.37.138.in-addr.arpa.: domain name does not exist
[0] 241.91.37.138.in-addr.arpa.: domain name does not exist
[0] 242.91.37.138.in-addr.arpa.: domain name does not exist
[0] 243.91.37.138.in-addr.arpa.: domain name does not exist
[0] 244.91.37.138.in-addr.arpa.: domain name does not exist
[0] 245.91.37.138.in-addr.arpa.: domain name does not exist
[0] 246.91.37.138.in-addr.arpa.: domain name does not exist
[1800] 247.91.37.138.in-addr.arpa. domain name pointer nicey502.dcs.qmul.ac.uk
[0] 248.91.37.138.in-addr.arpa.: domain name does not exist
[1800] 249.91.37.138.in-addr.arpa. domain name pointer stampa502.dcs.qmul.ac.uk
[0] 250.91.37.138.in-addr.arpa.: domain name does not exist
[0] 251.91.37.138.in-addr.arpa.: domain name does not exist
[0] 252.91.37.138.in-addr.arpa.: domain name does not exist
[1800] 253.91.37.138.in-addr.arpa. domain name pointer belt502.dcs.qmul.ac.uk
[1800] 254.91.37.138.in-addr.arpa. domain name pointer vr502.dcs.qmul.ac.uk
[0] 255.91.37.138.in-addr.arpa.: domain name does not exist