[0] 0.53.189.18.in-addr.arpa.: domain name does not exist
[0] 1.53.189.18.in-addr.arpa.: domain name does not exist
[0] 2.53.189.18.in-addr.arpa.: domain name does not exist
[0] 3.53.189.18.in-addr.arpa.: domain name does not exist
[0] 4.53.189.18.in-addr.arpa.: domain name does not exist
[0] 5.53.189.18.in-addr.arpa.: domain name does not exist
[60] 6.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-6.dyn.MIT.EDU
[0] 7.53.189.18.in-addr.arpa.: domain name does not exist
[60] 8.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-8.dyn.MIT.EDU
[0] 9.53.189.18.in-addr.arpa.: domain name does not exist
[0] 10.53.189.18.in-addr.arpa.: domain name does not exist
[0] 11.53.189.18.in-addr.arpa.: domain name does not exist
[0] 12.53.189.18.in-addr.arpa.: domain name does not exist
[60] 13.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-13.dyn.MIT.EDU
[60] 14.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-14.dyn.MIT.EDU
[60] 15.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-15.dyn.MIT.EDU
[60] 16.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-16.dyn.MIT.EDU
[0] 17.53.189.18.in-addr.arpa.: domain name does not exist
[0] 18.53.189.18.in-addr.arpa.: domain name does not exist
[0] 19.53.189.18.in-addr.arpa.: domain name does not exist
[60] 20.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-20.dyn.MIT.EDU
[60] 21.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-21.dyn.MIT.EDU
[60] 22.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-22.dyn.MIT.EDU
[60] 23.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-23.dyn.MIT.EDU
[0] 24.53.189.18.in-addr.arpa.: domain name does not exist
[60] 25.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-25.dyn.MIT.EDU
[60] 26.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-26.dyn.MIT.EDU
[60] 27.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-27.dyn.MIT.EDU
[0] 28.53.189.18.in-addr.arpa.: domain name does not exist
[60] 29.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-29.dyn.MIT.EDU
[0] 30.53.189.18.in-addr.arpa.: domain name does not exist
[0] 31.53.189.18.in-addr.arpa.: domain name does not exist
[60] 32.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-32.dyn.MIT.EDU
[0] 33.53.189.18.in-addr.arpa.: domain name does not exist
[0] 34.53.189.18.in-addr.arpa.: domain name does not exist
[60] 35.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-35.dyn.MIT.EDU
[60] 36.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-36.dyn.MIT.EDU
[60] 37.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-37.dyn.MIT.EDU
[60] 38.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-38.dyn.MIT.EDU
[0] 39.53.189.18.in-addr.arpa.: domain name does not exist
[0] 40.53.189.18.in-addr.arpa.: domain name does not exist
[0] 41.53.189.18.in-addr.arpa.: domain name does not exist
[0] 42.53.189.18.in-addr.arpa.: domain name does not exist
[60] 43.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-43.dyn.MIT.EDU
[0] 44.53.189.18.in-addr.arpa.: domain name does not exist
[0] 45.53.189.18.in-addr.arpa.: domain name does not exist
[60] 46.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-46.dyn.MIT.EDU
[0] 47.53.189.18.in-addr.arpa.: domain name does not exist
[60] 48.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-48.dyn.MIT.EDU
[60] 49.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-49.dyn.MIT.EDU
[0] 50.53.189.18.in-addr.arpa.: domain name does not exist
[0] 51.53.189.18.in-addr.arpa.: domain name does not exist
[60] 52.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-52.dyn.MIT.EDU
[0] 53.53.189.18.in-addr.arpa.: domain name does not exist
[60] 54.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-54.dyn.MIT.EDU
[60] 55.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-55.dyn.MIT.EDU
[0] 56.53.189.18.in-addr.arpa.: domain name does not exist
[60] 57.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-57.dyn.MIT.EDU
[60] 58.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-58.dyn.MIT.EDU
[60] 59.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-59.dyn.MIT.EDU
[0] 60.53.189.18.in-addr.arpa.: domain name does not exist
[60] 61.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-61.dyn.MIT.EDU
[0] 62.53.189.18.in-addr.arpa.: domain name does not exist
[60] 63.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-63.dyn.MIT.EDU
[60] 64.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-64.dyn.MIT.EDU
[60] 65.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-65.dyn.MIT.EDU
[0] 66.53.189.18.in-addr.arpa.: domain name does not exist
[60] 67.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-67.dyn.MIT.EDU
[60] 68.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-68.dyn.MIT.EDU
[0] 69.53.189.18.in-addr.arpa.: domain name does not exist
[0] 70.53.189.18.in-addr.arpa.: domain name does not exist
[60] 71.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-71.dyn.MIT.EDU
[60] 72.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-72.dyn.MIT.EDU
[0] 73.53.189.18.in-addr.arpa.: domain name does not exist
[0] 74.53.189.18.in-addr.arpa.: domain name does not exist
[0] 75.53.189.18.in-addr.arpa.: domain name does not exist
[60] 76.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-76.dyn.MIT.EDU
[0] 77.53.189.18.in-addr.arpa.: domain name does not exist
[0] 78.53.189.18.in-addr.arpa.: domain name does not exist
[60] 79.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-79.dyn.MIT.EDU
[60] 80.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-80.dyn.MIT.EDU
[60] 81.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-81.dyn.MIT.EDU
[0] 82.53.189.18.in-addr.arpa.: domain name does not exist
[60] 83.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-83.dyn.MIT.EDU
[0] 84.53.189.18.in-addr.arpa.: domain name does not exist
[60] 85.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-85.dyn.MIT.EDU
[0] 86.53.189.18.in-addr.arpa.: domain name does not exist
[60] 87.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-87.dyn.MIT.EDU
[0] 88.53.189.18.in-addr.arpa.: domain name does not exist
[60] 89.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-89.dyn.MIT.EDU
[60] 90.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-90.dyn.MIT.EDU
[60] 91.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-91.dyn.MIT.EDU
[0] 92.53.189.18.in-addr.arpa.: domain name does not exist
[0] 93.53.189.18.in-addr.arpa.: domain name does not exist
[60] 94.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-94.dyn.MIT.EDU
[60] 95.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-95.dyn.MIT.EDU
[60] 96.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-96.dyn.MIT.EDU
[0] 97.53.189.18.in-addr.arpa.: domain name does not exist
[0] 98.53.189.18.in-addr.arpa.: domain name does not exist
[0] 99.53.189.18.in-addr.arpa.: domain name does not exist
[0] 100.53.189.18.in-addr.arpa.: domain name does not exist
[60] 101.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-101.dyn.MIT.EDU
[60] 102.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-102.dyn.MIT.EDU
[60] 103.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-103.dyn.MIT.EDU
[0] 104.53.189.18.in-addr.arpa.: domain name does not exist
[0] 105.53.189.18.in-addr.arpa.: domain name does not exist
[0] 106.53.189.18.in-addr.arpa.: domain name does not exist
[60] 107.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-107.dyn.MIT.EDU
[0] 108.53.189.18.in-addr.arpa.: domain name does not exist
[0] 109.53.189.18.in-addr.arpa.: domain name does not exist
[60] 110.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-110.dyn.MIT.EDU
[60] 111.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-111.dyn.MIT.EDU
[60] 112.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-112.dyn.MIT.EDU
[60] 113.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-113.dyn.MIT.EDU
[60] 114.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-114.dyn.MIT.EDU
[0] 115.53.189.18.in-addr.arpa.: domain name does not exist
[60] 116.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-116.dyn.MIT.EDU
[60] 117.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-117.dyn.MIT.EDU
[60] 118.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-118.dyn.MIT.EDU
[0] 119.53.189.18.in-addr.arpa.: domain name does not exist
[60] 120.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-120.dyn.MIT.EDU
[60] 121.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-121.dyn.MIT.EDU
[60] 122.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-122.dyn.MIT.EDU
[0] 123.53.189.18.in-addr.arpa.: domain name does not exist
[0] 124.53.189.18.in-addr.arpa.: domain name does not exist
[60] 125.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-125.dyn.MIT.EDU
[60] 126.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-126.dyn.MIT.EDU
[0] 127.53.189.18.in-addr.arpa.: domain name does not exist
[0] 128.53.189.18.in-addr.arpa.: domain name does not exist
[60] 129.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-129.dyn.MIT.EDU
[60] 130.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-130.dyn.MIT.EDU
[60] 131.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-131.dyn.MIT.EDU
[0] 132.53.189.18.in-addr.arpa.: domain name does not exist
[0] 133.53.189.18.in-addr.arpa.: domain name does not exist
[0] 134.53.189.18.in-addr.arpa.: domain name does not exist
[0] 135.53.189.18.in-addr.arpa.: domain name does not exist
[0] 136.53.189.18.in-addr.arpa.: domain name does not exist
[60] 137.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-137.dyn.MIT.EDU
[0] 138.53.189.18.in-addr.arpa.: domain name does not exist
[60] 139.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-139.dyn.MIT.EDU
[60] 140.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-140.dyn.MIT.EDU
[60] 141.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-141.dyn.MIT.EDU
[60] 142.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-142.dyn.MIT.EDU
[60] 143.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-143.dyn.MIT.EDU
[60] 144.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-144.dyn.MIT.EDU
[0] 145.53.189.18.in-addr.arpa.: domain name does not exist
[60] 146.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-146.dyn.MIT.EDU
[0] 147.53.189.18.in-addr.arpa.: domain name does not exist
[0] 148.53.189.18.in-addr.arpa.: domain name does not exist
[0] 149.53.189.18.in-addr.arpa.: domain name does not exist
[60] 150.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-150.dyn.MIT.EDU
[60] 151.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-151.dyn.MIT.EDU
[60] 152.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-152.dyn.MIT.EDU
[60] 153.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-153.dyn.MIT.EDU
[60] 154.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-154.dyn.MIT.EDU
[60] 155.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-155.dyn.MIT.EDU
[60] 156.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-156.dyn.MIT.EDU
[0] 157.53.189.18.in-addr.arpa.: domain name does not exist
[60] 158.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-158.dyn.MIT.EDU
[0] 159.53.189.18.in-addr.arpa.: domain name does not exist
[0] 160.53.189.18.in-addr.arpa.: domain name does not exist
[60] 161.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-161.dyn.MIT.EDU
[60] 162.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-162.dyn.MIT.EDU
[60] 163.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-163.dyn.MIT.EDU
[0] 164.53.189.18.in-addr.arpa.: domain name does not exist
[60] 165.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-165.dyn.MIT.EDU
[60] 166.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-166.dyn.MIT.EDU
[60] 167.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-167.dyn.MIT.EDU
[60] 168.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-168.dyn.MIT.EDU
[0] 169.53.189.18.in-addr.arpa.: domain name does not exist
[60] 170.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-170.dyn.MIT.EDU
[0] 171.53.189.18.in-addr.arpa.: domain name does not exist
[0] 172.53.189.18.in-addr.arpa.: domain name does not exist
[60] 173.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-173.dyn.MIT.EDU
[60] 174.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-174.dyn.MIT.EDU
[60] 175.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-175.dyn.MIT.EDU
[60] 176.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-176.dyn.MIT.EDU
[0] 177.53.189.18.in-addr.arpa.: domain name does not exist
[60] 178.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-178.dyn.MIT.EDU
[60] 179.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-179.dyn.MIT.EDU
[60] 180.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-180.dyn.MIT.EDU
[60] 181.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-181.dyn.MIT.EDU
[60] 182.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-182.dyn.MIT.EDU
[0] 183.53.189.18.in-addr.arpa.: domain name does not exist
[60] 184.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-184.dyn.MIT.EDU
[0] 185.53.189.18.in-addr.arpa.: domain name does not exist
[60] 186.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-186.dyn.MIT.EDU
[60] 187.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-187.dyn.MIT.EDU
[60] 188.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-188.dyn.MIT.EDU
[0] 189.53.189.18.in-addr.arpa.: domain name does not exist
[0] 190.53.189.18.in-addr.arpa.: domain name does not exist
[60] 191.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-191.dyn.MIT.EDU
[60] 192.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-192.dyn.MIT.EDU
[60] 193.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-193.dyn.MIT.EDU
[60] 194.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-194.dyn.MIT.EDU
[60] 195.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-195.dyn.MIT.EDU
[60] 196.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-196.dyn.MIT.EDU
[60] 197.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-197.dyn.MIT.EDU
[60] 198.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-198.dyn.MIT.EDU
[0] 199.53.189.18.in-addr.arpa.: domain name does not exist
[0] 200.53.189.18.in-addr.arpa.: domain name does not exist
[0] 201.53.189.18.in-addr.arpa.: domain name does not exist
[60] 202.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-202.dyn.MIT.EDU
[0] 203.53.189.18.in-addr.arpa.: domain name does not exist
[0] 204.53.189.18.in-addr.arpa.: domain name does not exist
[60] 205.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-205.dyn.MIT.EDU
[60] 206.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-206.dyn.MIT.EDU
[60] 207.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-207.dyn.MIT.EDU
[60] 208.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-208.dyn.MIT.EDU
[60] 209.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-209.dyn.MIT.EDU
[60] 210.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-210.dyn.MIT.EDU
[60] 211.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-211.dyn.MIT.EDU
[0] 212.53.189.18.in-addr.arpa.: domain name does not exist
[60] 213.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-213.dyn.MIT.EDU
[0] 214.53.189.18.in-addr.arpa.: domain name does not exist
[60] 215.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-215.dyn.MIT.EDU
[0] 216.53.189.18.in-addr.arpa.: domain name does not exist
[60] 217.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-217.dyn.MIT.EDU
[60] 218.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-218.dyn.MIT.EDU
[0] 219.53.189.18.in-addr.arpa.: domain name does not exist
[60] 220.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-220.dyn.MIT.EDU
[60] 221.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-221.dyn.MIT.EDU
[0] 222.53.189.18.in-addr.arpa.: domain name does not exist
[0] 223.53.189.18.in-addr.arpa.: domain name does not exist
[0] 224.53.189.18.in-addr.arpa.: domain name does not exist
[60] 225.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-225.dyn.MIT.EDU
[60] 226.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-226.dyn.MIT.EDU
[0] 227.53.189.18.in-addr.arpa.: domain name does not exist
[60] 228.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-228.dyn.MIT.EDU
[0] 229.53.189.18.in-addr.arpa.: domain name does not exist
[0] 230.53.189.18.in-addr.arpa.: domain name does not exist
[60] 231.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-231.dyn.MIT.EDU
[0] 232.53.189.18.in-addr.arpa.: domain name does not exist
[0] 233.53.189.18.in-addr.arpa.: domain name does not exist
[60] 234.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-234.dyn.MIT.EDU
[60] 235.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-235.dyn.MIT.EDU
[60] 236.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-236.dyn.MIT.EDU
[60] 237.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-237.dyn.MIT.EDU
[0] 238.53.189.18.in-addr.arpa.: domain name does not exist
[60] 239.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-239.dyn.MIT.EDU
[0] 240.53.189.18.in-addr.arpa.: domain name does not exist
[0] 241.53.189.18.in-addr.arpa.: domain name does not exist
[0] 242.53.189.18.in-addr.arpa.: domain name does not exist
[0] 243.53.189.18.in-addr.arpa.: domain name does not exist
[0] 244.53.189.18.in-addr.arpa.: domain name does not exist
[60] 245.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-245.dyn.MIT.EDU
[60] 246.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-246.dyn.MIT.EDU
[0] 247.53.189.18.in-addr.arpa.: domain name does not exist
[0] 248.53.189.18.in-addr.arpa.: domain name does not exist
[60] 249.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-249.dyn.MIT.EDU
[60] 250.53.189.18.in-addr.arpa. domain name pointer dhcp-18-189-53-250.dyn.MIT.EDU
[0] 251.53.189.18.in-addr.arpa.: domain name does not exist
[0] 252.53.189.18.in-addr.arpa.: domain name does not exist
[0] 253.53.189.18.in-addr.arpa.: domain name does not exist
[0] 254.53.189.18.in-addr.arpa.: domain name does not exist
[0] 255.53.189.18.in-addr.arpa.: domain name does not exist