[0] 0.70.189.18.in-addr.arpa.: domain name does not exist
[0] 1.70.189.18.in-addr.arpa.: domain name does not exist
[0] 2.70.189.18.in-addr.arpa.: domain name does not exist
[0] 3.70.189.18.in-addr.arpa.: domain name does not exist
[0] 4.70.189.18.in-addr.arpa.: domain name does not exist
[60] 5.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-5.dyn.MIT.EDU
[60] 6.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-6.dyn.MIT.EDU
[60] 7.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-7.dyn.MIT.EDU
[60] 8.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-8.dyn.MIT.EDU
[60] 9.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-9.dyn.MIT.EDU
[60] 10.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-10.dyn.MIT.EDU
[60] 11.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-11.dyn.MIT.EDU
[60] 12.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-12.dyn.MIT.EDU
[60] 13.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-13.dyn.MIT.EDU
[60] 14.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-14.dyn.MIT.EDU
[0] 15.70.189.18.in-addr.arpa.: domain name does not exist
[60] 16.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-16.dyn.MIT.EDU
[0] 17.70.189.18.in-addr.arpa.: domain name does not exist
[0] 18.70.189.18.in-addr.arpa.: domain name does not exist
[0] 19.70.189.18.in-addr.arpa.: domain name does not exist
[60] 20.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-20.dyn.MIT.EDU
[60] 21.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-21.dyn.MIT.EDU
[60] 22.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-22.dyn.MIT.EDU
[60] 23.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-23.dyn.MIT.EDU
[60] 24.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-24.dyn.MIT.EDU
[0] 25.70.189.18.in-addr.arpa.: domain name does not exist
[0] 26.70.189.18.in-addr.arpa.: domain name does not exist
[0] 27.70.189.18.in-addr.arpa.: domain name does not exist
[60] 28.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-28.dyn.MIT.EDU
[0] 29.70.189.18.in-addr.arpa.: domain name does not exist
[0] 30.70.189.18.in-addr.arpa.: domain name does not exist
[60] 31.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-31.dyn.MIT.EDU
[60] 32.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-32.dyn.MIT.EDU
[60] 33.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-33.dyn.MIT.EDU
[60] 34.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-34.dyn.MIT.EDU
[0] 35.70.189.18.in-addr.arpa.: domain name does not exist
[0] 36.70.189.18.in-addr.arpa.: domain name does not exist
[60] 37.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-37.dyn.MIT.EDU
[60] 38.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-38.dyn.MIT.EDU
[60] 39.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-39.dyn.MIT.EDU
[60] 40.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-40.dyn.MIT.EDU
[0] 41.70.189.18.in-addr.arpa.: domain name does not exist
[60] 42.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-42.dyn.MIT.EDU
[0] 43.70.189.18.in-addr.arpa.: domain name does not exist
[60] 44.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-44.dyn.MIT.EDU
[0] 45.70.189.18.in-addr.arpa.: domain name does not exist
[60] 46.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-46.dyn.MIT.EDU
[60] 47.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-47.dyn.MIT.EDU
[0] 48.70.189.18.in-addr.arpa.: domain name does not exist
[0] 49.70.189.18.in-addr.arpa.: domain name does not exist
[60] 50.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-50.dyn.MIT.EDU
[0] 51.70.189.18.in-addr.arpa.: domain name does not exist
[0] 52.70.189.18.in-addr.arpa.: domain name does not exist
[60] 53.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-53.dyn.MIT.EDU
[0] 54.70.189.18.in-addr.arpa.: domain name does not exist
[0] 55.70.189.18.in-addr.arpa.: domain name does not exist
[60] 56.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-56.dyn.MIT.EDU
[0] 57.70.189.18.in-addr.arpa.: domain name does not exist
[60] 58.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-58.dyn.MIT.EDU
[60] 59.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-59.dyn.MIT.EDU
[0] 60.70.189.18.in-addr.arpa.: domain name does not exist
[0] 61.70.189.18.in-addr.arpa.: domain name does not exist
[0] 62.70.189.18.in-addr.arpa.: domain name does not exist
[0] 63.70.189.18.in-addr.arpa.: domain name does not exist
[0] 64.70.189.18.in-addr.arpa.: domain name does not exist
[0] 65.70.189.18.in-addr.arpa.: domain name does not exist
[0] 66.70.189.18.in-addr.arpa.: domain name does not exist
[60] 67.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-67.dyn.MIT.EDU
[60] 68.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-68.dyn.MIT.EDU
[0] 69.70.189.18.in-addr.arpa.: domain name does not exist
[60] 70.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-70.dyn.MIT.EDU
[0] 71.70.189.18.in-addr.arpa.: domain name does not exist
[60] 72.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-72.dyn.MIT.EDU
[60] 73.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-73.dyn.MIT.EDU
[0] 74.70.189.18.in-addr.arpa.: domain name does not exist
[60] 75.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-75.dyn.MIT.EDU
[60] 76.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-76.dyn.MIT.EDU
[60] 77.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-77.dyn.MIT.EDU
[0] 78.70.189.18.in-addr.arpa.: domain name does not exist
[0] 79.70.189.18.in-addr.arpa.: domain name does not exist
[0] 80.70.189.18.in-addr.arpa.: domain name does not exist
[0] 81.70.189.18.in-addr.arpa.: domain name does not exist
[60] 82.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-82.dyn.MIT.EDU
[60] 83.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-83.dyn.MIT.EDU
[60] 84.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-84.dyn.MIT.EDU
[60] 85.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-85.dyn.MIT.EDU
[0] 86.70.189.18.in-addr.arpa.: domain name does not exist
[0] 87.70.189.18.in-addr.arpa.: domain name does not exist
[60] 88.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-88.dyn.MIT.EDU
[0] 89.70.189.18.in-addr.arpa.: domain name does not exist
[60] 90.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-90.dyn.MIT.EDU
[0] 91.70.189.18.in-addr.arpa.: domain name does not exist
[60] 92.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-92.dyn.MIT.EDU
[0] 93.70.189.18.in-addr.arpa.: domain name does not exist
[0] 94.70.189.18.in-addr.arpa.: domain name does not exist
[0] 95.70.189.18.in-addr.arpa.: domain name does not exist
[60] 96.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-96.dyn.MIT.EDU
[0] 97.70.189.18.in-addr.arpa.: domain name does not exist
[0] 98.70.189.18.in-addr.arpa.: domain name does not exist
[0] 99.70.189.18.in-addr.arpa.: domain name does not exist
[0] 100.70.189.18.in-addr.arpa.: domain name does not exist
[0] 101.70.189.18.in-addr.arpa.: domain name does not exist
[0] 102.70.189.18.in-addr.arpa.: domain name does not exist
[60] 103.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-103.dyn.MIT.EDU
[0] 104.70.189.18.in-addr.arpa.: domain name does not exist
[0] 105.70.189.18.in-addr.arpa.: domain name does not exist
[0] 106.70.189.18.in-addr.arpa.: domain name does not exist
[0] 107.70.189.18.in-addr.arpa.: domain name does not exist
[60] 108.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-108.dyn.MIT.EDU
[0] 109.70.189.18.in-addr.arpa.: domain name does not exist
[60] 110.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-110.dyn.MIT.EDU
[60] 111.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-111.dyn.MIT.EDU
[0] 112.70.189.18.in-addr.arpa.: domain name does not exist
[0] 113.70.189.18.in-addr.arpa.: domain name does not exist
[0] 114.70.189.18.in-addr.arpa.: domain name does not exist
[0] 115.70.189.18.in-addr.arpa.: domain name does not exist
[0] 116.70.189.18.in-addr.arpa.: domain name does not exist
[60] 117.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-117.dyn.MIT.EDU
[0] 118.70.189.18.in-addr.arpa.: domain name does not exist
[0] 119.70.189.18.in-addr.arpa.: domain name does not exist
[0] 120.70.189.18.in-addr.arpa.: domain name does not exist
[0] 121.70.189.18.in-addr.arpa.: domain name does not exist
[60] 122.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-122.dyn.MIT.EDU
[60] 123.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-123.dyn.MIT.EDU
[0] 124.70.189.18.in-addr.arpa.: domain name does not exist
[0] 125.70.189.18.in-addr.arpa.: domain name does not exist
[60] 126.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-126.dyn.MIT.EDU
[0] 127.70.189.18.in-addr.arpa.: domain name does not exist
[0] 128.70.189.18.in-addr.arpa.: domain name does not exist
[60] 129.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-129.dyn.MIT.EDU
[0] 130.70.189.18.in-addr.arpa.: domain name does not exist
[0] 131.70.189.18.in-addr.arpa.: domain name does not exist
[60] 132.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-132.dyn.MIT.EDU
[0] 133.70.189.18.in-addr.arpa.: domain name does not exist
[60] 134.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-134.dyn.MIT.EDU
[60] 135.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-135.dyn.MIT.EDU
[60] 136.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-136.dyn.MIT.EDU
[0] 137.70.189.18.in-addr.arpa.: domain name does not exist
[60] 138.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-138.dyn.MIT.EDU
[0] 139.70.189.18.in-addr.arpa.: domain name does not exist
[60] 140.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-140.dyn.MIT.EDU
[60] 141.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-141.dyn.MIT.EDU
[0] 142.70.189.18.in-addr.arpa.: domain name does not exist
[0] 143.70.189.18.in-addr.arpa.: domain name does not exist
[0] 144.70.189.18.in-addr.arpa.: domain name does not exist
[0] 145.70.189.18.in-addr.arpa.: domain name does not exist
[60] 146.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-146.dyn.MIT.EDU
[60] 147.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-147.dyn.MIT.EDU
[0] 148.70.189.18.in-addr.arpa.: domain name does not exist
[0] 149.70.189.18.in-addr.arpa.: domain name does not exist
[0] 150.70.189.18.in-addr.arpa.: domain name does not exist
[60] 151.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-151.dyn.MIT.EDU
[60] 152.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-152.dyn.MIT.EDU
[0] 153.70.189.18.in-addr.arpa.: domain name does not exist
[60] 154.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-154.dyn.MIT.EDU
[60] 155.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-155.dyn.MIT.EDU
[0] 156.70.189.18.in-addr.arpa.: domain name does not exist
[0] 157.70.189.18.in-addr.arpa.: domain name does not exist
[0] 158.70.189.18.in-addr.arpa.: domain name does not exist
[0] 159.70.189.18.in-addr.arpa.: domain name does not exist
[60] 160.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-160.dyn.MIT.EDU
[0] 161.70.189.18.in-addr.arpa.: domain name does not exist
[0] 162.70.189.18.in-addr.arpa.: domain name does not exist
[60] 163.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-163.dyn.MIT.EDU
[0] 164.70.189.18.in-addr.arpa.: domain name does not exist
[60] 165.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-165.dyn.MIT.EDU
[0] 166.70.189.18.in-addr.arpa.: domain name does not exist
[0] 167.70.189.18.in-addr.arpa.: domain name does not exist
[60] 168.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-168.dyn.MIT.EDU
[0] 169.70.189.18.in-addr.arpa.: domain name does not exist
[0] 170.70.189.18.in-addr.arpa.: domain name does not exist
[60] 171.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-171.dyn.MIT.EDU
[60] 172.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-172.dyn.MIT.EDU
[0] 173.70.189.18.in-addr.arpa.: domain name does not exist
[60] 174.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-174.dyn.MIT.EDU
[60] 175.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-175.dyn.MIT.EDU
[0] 176.70.189.18.in-addr.arpa.: domain name does not exist
[0] 177.70.189.18.in-addr.arpa.: domain name does not exist
[0] 178.70.189.18.in-addr.arpa.: domain name does not exist
[60] 179.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-179.dyn.MIT.EDU
[60] 180.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-180.dyn.MIT.EDU
[60] 181.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-181.dyn.MIT.EDU
[60] 182.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-182.dyn.MIT.EDU
[0] 183.70.189.18.in-addr.arpa.: domain name does not exist
[0] 184.70.189.18.in-addr.arpa.: domain name does not exist
[60] 185.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-185.dyn.MIT.EDU
[60] 186.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-186.dyn.MIT.EDU
[60] 187.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-187.dyn.MIT.EDU
[0] 188.70.189.18.in-addr.arpa.: domain name does not exist
[60] 189.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-189.dyn.MIT.EDU
[0] 190.70.189.18.in-addr.arpa.: domain name does not exist
[0] 191.70.189.18.in-addr.arpa.: domain name does not exist
[60] 192.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-192.dyn.MIT.EDU
[60] 193.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-193.dyn.MIT.EDU
[0] 194.70.189.18.in-addr.arpa.: domain name does not exist
[0] 195.70.189.18.in-addr.arpa.: domain name does not exist
[0] 196.70.189.18.in-addr.arpa.: domain name does not exist
[0] 197.70.189.18.in-addr.arpa.: domain name does not exist
[0] 198.70.189.18.in-addr.arpa.: domain name does not exist
[60] 199.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-199.dyn.MIT.EDU
[60] 200.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-200.dyn.MIT.EDU
[60] 201.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-201.dyn.MIT.EDU
[60] 202.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-202.dyn.MIT.EDU
[60] 203.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-203.dyn.MIT.EDU
[60] 204.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-204.dyn.MIT.EDU
[60] 205.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-205.dyn.MIT.EDU
[0] 206.70.189.18.in-addr.arpa.: domain name does not exist
[0] 207.70.189.18.in-addr.arpa.: domain name does not exist
[0] 208.70.189.18.in-addr.arpa.: domain name does not exist
[60] 209.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-209.dyn.MIT.EDU
[60] 210.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-210.dyn.MIT.EDU
[0] 211.70.189.18.in-addr.arpa.: domain name does not exist
[60] 212.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-212.dyn.MIT.EDU
[60] 213.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-213.dyn.MIT.EDU
[60] 214.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-214.dyn.MIT.EDU
[60] 215.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-215.dyn.MIT.EDU
[0] 216.70.189.18.in-addr.arpa.: domain name does not exist
[60] 217.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-217.dyn.MIT.EDU
[60] 218.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-218.dyn.MIT.EDU
[0] 219.70.189.18.in-addr.arpa.: domain name does not exist
[60] 220.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-220.dyn.MIT.EDU
[0] 221.70.189.18.in-addr.arpa.: domain name does not exist
[60] 222.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-222.dyn.MIT.EDU
[60] 223.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-223.dyn.MIT.EDU
[60] 224.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-224.dyn.MIT.EDU
[60] 225.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-225.dyn.MIT.EDU
[60] 226.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-226.dyn.MIT.EDU
[0] 227.70.189.18.in-addr.arpa.: domain name does not exist
[60] 228.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-228.dyn.MIT.EDU
[0] 229.70.189.18.in-addr.arpa.: domain name does not exist
[60] 230.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-230.dyn.MIT.EDU
[60] 231.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-231.dyn.MIT.EDU
[0] 232.70.189.18.in-addr.arpa.: domain name does not exist
[60] 233.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-233.dyn.MIT.EDU
[60] 234.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-234.dyn.MIT.EDU
[0] 235.70.189.18.in-addr.arpa.: domain name does not exist
[0] 236.70.189.18.in-addr.arpa.: domain name does not exist
[60] 237.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-237.dyn.MIT.EDU
[60] 238.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-238.dyn.MIT.EDU
[60] 239.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-239.dyn.MIT.EDU
[60] 240.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-240.dyn.MIT.EDU
[0] 241.70.189.18.in-addr.arpa.: domain name does not exist
[60] 242.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-242.dyn.MIT.EDU
[0] 243.70.189.18.in-addr.arpa.: domain name does not exist
[60] 244.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-244.dyn.MIT.EDU
[0] 245.70.189.18.in-addr.arpa.: domain name does not exist
[60] 246.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-246.dyn.MIT.EDU
[0] 247.70.189.18.in-addr.arpa.: domain name does not exist
[60] 248.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-248.dyn.MIT.EDU
[0] 249.70.189.18.in-addr.arpa.: domain name does not exist
[60] 250.70.189.18.in-addr.arpa. domain name pointer dhcp-18-189-70-250.dyn.MIT.EDU
[0] 251.70.189.18.in-addr.arpa.: domain name does not exist
[0] 252.70.189.18.in-addr.arpa.: domain name does not exist
[0] 253.70.189.18.in-addr.arpa.: domain name does not exist
[0] 254.70.189.18.in-addr.arpa.: domain name does not exist
[0] 255.70.189.18.in-addr.arpa.: domain name does not exist