[0] 0.123.189.18.in-addr.arpa.: domain name does not exist
[0] 1.123.189.18.in-addr.arpa.: domain name does not exist
[0] 2.123.189.18.in-addr.arpa.: domain name does not exist
[0] 3.123.189.18.in-addr.arpa.: domain name does not exist
[0] 4.123.189.18.in-addr.arpa.: domain name does not exist
[60] 5.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-5.dyn.MIT.EDU
[60] 6.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-6.dyn.MIT.EDU
[60] 7.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-7.dyn.MIT.EDU
[60] 8.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-8.dyn.MIT.EDU
[60] 9.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-9.dyn.MIT.EDU
[0] 10.123.189.18.in-addr.arpa.: domain name does not exist
[0] 11.123.189.18.in-addr.arpa.: domain name does not exist
[0] 12.123.189.18.in-addr.arpa.: domain name does not exist
[60] 13.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-13.dyn.MIT.EDU
[0] 14.123.189.18.in-addr.arpa.: domain name does not exist
[0] 15.123.189.18.in-addr.arpa.: domain name does not exist
[0] 16.123.189.18.in-addr.arpa.: domain name does not exist
[60] 17.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-17.dyn.MIT.EDU
[0] 18.123.189.18.in-addr.arpa.: domain name does not exist
[60] 19.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-19.dyn.MIT.EDU
[0] 20.123.189.18.in-addr.arpa.: domain name does not exist
[60] 21.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-21.dyn.MIT.EDU
[60] 22.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-22.dyn.MIT.EDU
[60] 23.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-23.dyn.MIT.EDU
[60] 24.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-24.dyn.MIT.EDU
[0] 25.123.189.18.in-addr.arpa.: domain name does not exist
[60] 26.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-26.dyn.MIT.EDU
[0] 27.123.189.18.in-addr.arpa.: domain name does not exist
[60] 28.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-28.dyn.MIT.EDU
[60] 29.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-29.dyn.MIT.EDU
[60] 30.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-30.dyn.MIT.EDU
[60] 31.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-31.dyn.MIT.EDU
[60] 32.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-32.dyn.MIT.EDU
[60] 33.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-33.dyn.MIT.EDU
[0] 34.123.189.18.in-addr.arpa.: domain name does not exist
[0] 35.123.189.18.in-addr.arpa.: domain name does not exist
[0] 36.123.189.18.in-addr.arpa.: domain name does not exist
[60] 37.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-37.dyn.MIT.EDU
[60] 38.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-38.dyn.MIT.EDU
[60] 39.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-39.dyn.MIT.EDU
[0] 40.123.189.18.in-addr.arpa.: domain name does not exist
[0] 41.123.189.18.in-addr.arpa.: domain name does not exist
[0] 42.123.189.18.in-addr.arpa.: domain name does not exist
[60] 43.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-43.dyn.MIT.EDU
[60] 44.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-44.dyn.MIT.EDU
[0] 45.123.189.18.in-addr.arpa.: domain name does not exist
[0] 46.123.189.18.in-addr.arpa.: domain name does not exist
[0] 47.123.189.18.in-addr.arpa.: domain name does not exist
[60] 48.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-48.dyn.MIT.EDU
[0] 49.123.189.18.in-addr.arpa.: domain name does not exist
[60] 50.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-50.dyn.MIT.EDU
[0] 51.123.189.18.in-addr.arpa.: domain name does not exist
[60] 52.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-52.dyn.MIT.EDU
[60] 53.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-53.dyn.MIT.EDU
[60] 54.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-54.dyn.MIT.EDU
[0] 55.123.189.18.in-addr.arpa.: domain name does not exist
[0] 56.123.189.18.in-addr.arpa.: domain name does not exist
[60] 57.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-57.dyn.MIT.EDU
[60] 58.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-58.dyn.MIT.EDU
[0] 59.123.189.18.in-addr.arpa.: domain name does not exist
[0] 60.123.189.18.in-addr.arpa.: domain name does not exist
[60] 61.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-61.dyn.MIT.EDU
[60] 62.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-62.dyn.MIT.EDU
[60] 63.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-63.dyn.MIT.EDU
[60] 64.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-64.dyn.MIT.EDU
[60] 65.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-65.dyn.MIT.EDU
[0] 66.123.189.18.in-addr.arpa.: domain name does not exist
[0] 67.123.189.18.in-addr.arpa.: domain name does not exist
[60] 68.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-68.dyn.MIT.EDU
[0] 69.123.189.18.in-addr.arpa.: domain name does not exist
[60] 70.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-70.dyn.MIT.EDU
[60] 71.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-71.dyn.MIT.EDU
[0] 72.123.189.18.in-addr.arpa.: domain name does not exist
[60] 73.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-73.dyn.MIT.EDU
[0] 74.123.189.18.in-addr.arpa.: domain name does not exist
[60] 75.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-75.dyn.MIT.EDU
[0] 76.123.189.18.in-addr.arpa.: domain name does not exist
[60] 77.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-77.dyn.MIT.EDU
[60] 78.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-78.dyn.MIT.EDU
[60] 79.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-79.dyn.MIT.EDU
[0] 80.123.189.18.in-addr.arpa.: domain name does not exist
[60] 81.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-81.dyn.MIT.EDU
[60] 82.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-82.dyn.MIT.EDU
[60] 83.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-83.dyn.MIT.EDU
[0] 84.123.189.18.in-addr.arpa.: domain name does not exist
[60] 85.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-85.dyn.MIT.EDU
[0] 86.123.189.18.in-addr.arpa.: domain name does not exist
[60] 87.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-87.dyn.MIT.EDU
[60] 88.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-88.dyn.MIT.EDU
[60] 89.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-89.dyn.MIT.EDU
[60] 90.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-90.dyn.MIT.EDU
[60] 91.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-91.dyn.MIT.EDU
[0] 92.123.189.18.in-addr.arpa.: domain name does not exist
[60] 93.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-93.dyn.MIT.EDU
[0] 94.123.189.18.in-addr.arpa.: domain name does not exist
[60] 95.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-95.dyn.MIT.EDU
[0] 96.123.189.18.in-addr.arpa.: domain name does not exist
[60] 97.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-97.dyn.MIT.EDU
[0] 98.123.189.18.in-addr.arpa.: domain name does not exist
[60] 99.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-99.dyn.MIT.EDU
[60] 100.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-100.dyn.MIT.EDU
[60] 101.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-101.dyn.MIT.EDU
[0] 102.123.189.18.in-addr.arpa.: domain name does not exist
[60] 103.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-103.dyn.MIT.EDU
[0] 104.123.189.18.in-addr.arpa.: domain name does not exist
[0] 105.123.189.18.in-addr.arpa.: domain name does not exist
[0] 106.123.189.18.in-addr.arpa.: domain name does not exist
[0] 107.123.189.18.in-addr.arpa.: domain name does not exist
[60] 108.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-108.dyn.MIT.EDU
[0] 109.123.189.18.in-addr.arpa.: domain name does not exist
[0] 110.123.189.18.in-addr.arpa.: domain name does not exist
[60] 111.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-111.dyn.MIT.EDU
[0] 112.123.189.18.in-addr.arpa.: domain name does not exist
[60] 113.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-113.dyn.MIT.EDU
[60] 114.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-114.dyn.MIT.EDU
[0] 115.123.189.18.in-addr.arpa.: domain name does not exist
[0] 116.123.189.18.in-addr.arpa.: domain name does not exist
[0] 117.123.189.18.in-addr.arpa.: domain name does not exist
[60] 118.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-118.dyn.MIT.EDU
[0] 119.123.189.18.in-addr.arpa.: domain name does not exist
[0] 120.123.189.18.in-addr.arpa.: domain name does not exist
[60] 121.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-121.dyn.MIT.EDU
[60] 122.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-122.dyn.MIT.EDU
[0] 123.123.189.18.in-addr.arpa.: domain name does not exist
[0] 124.123.189.18.in-addr.arpa.: domain name does not exist
[60] 125.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-125.dyn.MIT.EDU
[60] 126.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-126.dyn.MIT.EDU
[0] 127.123.189.18.in-addr.arpa.: domain name does not exist
[0] 128.123.189.18.in-addr.arpa.: domain name does not exist
[60] 129.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-129.dyn.MIT.EDU
[0] 130.123.189.18.in-addr.arpa.: domain name does not exist
[0] 131.123.189.18.in-addr.arpa.: domain name does not exist
[60] 132.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-132.dyn.MIT.EDU
[60] 133.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-133.dyn.MIT.EDU
[0] 134.123.189.18.in-addr.arpa.: domain name does not exist
[60] 135.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-135.dyn.MIT.EDU
[0] 136.123.189.18.in-addr.arpa.: domain name does not exist
[0] 137.123.189.18.in-addr.arpa.: domain name does not exist
[60] 138.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-138.dyn.MIT.EDU
[60] 139.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-139.dyn.MIT.EDU
[60] 140.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-140.dyn.MIT.EDU
[0] 141.123.189.18.in-addr.arpa.: domain name does not exist
[0] 142.123.189.18.in-addr.arpa.: domain name does not exist
[0] 143.123.189.18.in-addr.arpa.: domain name does not exist
[60] 144.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-144.dyn.MIT.EDU
[0] 145.123.189.18.in-addr.arpa.: domain name does not exist
[0] 146.123.189.18.in-addr.arpa.: domain name does not exist
[0] 147.123.189.18.in-addr.arpa.: domain name does not exist
[60] 148.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-148.dyn.MIT.EDU
[0] 149.123.189.18.in-addr.arpa.: domain name does not exist
[60] 150.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-150.dyn.MIT.EDU
[60] 151.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-151.dyn.MIT.EDU
[60] 152.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-152.dyn.MIT.EDU
[60] 153.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-153.dyn.MIT.EDU
[60] 154.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-154.dyn.MIT.EDU
[0] 155.123.189.18.in-addr.arpa.: domain name does not exist
[0] 156.123.189.18.in-addr.arpa.: domain name does not exist
[60] 157.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-157.dyn.MIT.EDU
[60] 158.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-158.dyn.MIT.EDU
[60] 159.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-159.dyn.MIT.EDU
[60] 160.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-160.dyn.MIT.EDU
[60] 161.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-161.dyn.MIT.EDU
[60] 162.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-162.dyn.MIT.EDU
[60] 163.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-163.dyn.MIT.EDU
[60] 164.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-164.dyn.MIT.EDU
[60] 165.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-165.dyn.MIT.EDU
[60] 166.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-166.dyn.MIT.EDU
[0] 167.123.189.18.in-addr.arpa.: domain name does not exist
[60] 168.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-168.dyn.MIT.EDU
[60] 169.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-169.dyn.MIT.EDU
[60] 170.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-170.dyn.MIT.EDU
[60] 171.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-171.dyn.MIT.EDU
[60] 172.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-172.dyn.MIT.EDU
[60] 173.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-173.dyn.MIT.EDU
[60] 174.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-174.dyn.MIT.EDU
[60] 175.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-175.dyn.MIT.EDU
[60] 176.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-176.dyn.MIT.EDU
[60] 177.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-177.dyn.MIT.EDU
[60] 178.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-178.dyn.MIT.EDU
[0] 179.123.189.18.in-addr.arpa.: domain name does not exist
[60] 180.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-180.dyn.MIT.EDU
[60] 181.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-181.dyn.MIT.EDU
[60] 182.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-182.dyn.MIT.EDU
[0] 183.123.189.18.in-addr.arpa.: domain name does not exist
[60] 184.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-184.dyn.MIT.EDU
[60] 185.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-185.dyn.MIT.EDU
[60] 186.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-186.dyn.MIT.EDU
[0] 187.123.189.18.in-addr.arpa.: domain name does not exist
[0] 188.123.189.18.in-addr.arpa.: domain name does not exist
[0] 189.123.189.18.in-addr.arpa.: domain name does not exist
[0] 190.123.189.18.in-addr.arpa.: domain name does not exist
[60] 191.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-191.dyn.MIT.EDU
[60] 192.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-192.dyn.MIT.EDU
[60] 193.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-193.dyn.MIT.EDU
[0] 194.123.189.18.in-addr.arpa.: domain name does not exist
[60] 195.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-195.dyn.MIT.EDU
[60] 196.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-196.dyn.MIT.EDU
[0] 197.123.189.18.in-addr.arpa.: domain name does not exist
[0] 198.123.189.18.in-addr.arpa.: domain name does not exist
[60] 199.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-199.dyn.MIT.EDU
[0] 200.123.189.18.in-addr.arpa.: domain name does not exist
[60] 201.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-201.dyn.MIT.EDU
[60] 202.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-202.dyn.MIT.EDU
[60] 203.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-203.dyn.MIT.EDU
[0] 204.123.189.18.in-addr.arpa.: domain name does not exist
[0] 205.123.189.18.in-addr.arpa.: domain name does not exist
[60] 206.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-206.dyn.MIT.EDU
[60] 207.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-207.dyn.MIT.EDU
[60] 208.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-208.dyn.MIT.EDU
[60] 209.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-209.dyn.MIT.EDU
[60] 210.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-210.dyn.MIT.EDU
[0] 211.123.189.18.in-addr.arpa.: domain name does not exist
[0] 212.123.189.18.in-addr.arpa.: domain name does not exist
[0] 213.123.189.18.in-addr.arpa.: domain name does not exist
[0] 214.123.189.18.in-addr.arpa.: domain name does not exist
[60] 215.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-215.dyn.MIT.EDU
[0] 216.123.189.18.in-addr.arpa.: domain name does not exist
[60] 217.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-217.dyn.MIT.EDU
[0] 218.123.189.18.in-addr.arpa.: domain name does not exist
[0] 219.123.189.18.in-addr.arpa.: domain name does not exist
[60] 220.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-220.dyn.MIT.EDU
[0] 221.123.189.18.in-addr.arpa.: domain name does not exist
[0] 222.123.189.18.in-addr.arpa.: domain name does not exist
[60] 223.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-223.dyn.MIT.EDU
[60] 224.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-224.dyn.MIT.EDU
[60] 225.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-225.dyn.MIT.EDU
[0] 226.123.189.18.in-addr.arpa.: domain name does not exist
[0] 227.123.189.18.in-addr.arpa.: domain name does not exist
[60] 228.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-228.dyn.MIT.EDU
[60] 229.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-229.dyn.MIT.EDU
[60] 230.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-230.dyn.MIT.EDU
[60] 231.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-231.dyn.MIT.EDU
[0] 232.123.189.18.in-addr.arpa.: domain name does not exist
[60] 233.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-233.dyn.MIT.EDU
[0] 234.123.189.18.in-addr.arpa.: domain name does not exist
[60] 235.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-235.dyn.MIT.EDU
[60] 236.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-236.dyn.MIT.EDU
[60] 237.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-237.dyn.MIT.EDU
[60] 238.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-238.dyn.MIT.EDU
[60] 239.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-239.dyn.MIT.EDU
[0] 240.123.189.18.in-addr.arpa.: domain name does not exist
[60] 241.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-241.dyn.MIT.EDU
[0] 242.123.189.18.in-addr.arpa.: domain name does not exist
[0] 243.123.189.18.in-addr.arpa.: domain name does not exist
[60] 244.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-244.dyn.MIT.EDU
[60] 245.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-245.dyn.MIT.EDU
[0] 246.123.189.18.in-addr.arpa.: domain name does not exist
[0] 247.123.189.18.in-addr.arpa.: domain name does not exist
[0] 248.123.189.18.in-addr.arpa.: domain name does not exist
[0] 249.123.189.18.in-addr.arpa.: domain name does not exist
[60] 250.123.189.18.in-addr.arpa. domain name pointer dhcp-18-189-123-250.dyn.MIT.EDU
[0] 251.123.189.18.in-addr.arpa.: domain name does not exist
[0] 252.123.189.18.in-addr.arpa.: domain name does not exist
[0] 253.123.189.18.in-addr.arpa.: domain name does not exist
[0] 254.123.189.18.in-addr.arpa.: domain name does not exist
[0] 255.123.189.18.in-addr.arpa.: domain name does not exist