[0] 0.21.39.160.in-addr.arpa.: domain name does not exist
[0] 1.21.39.160.in-addr.arpa.: domain name does not exist
[0] 2.21.39.160.in-addr.arpa.: domain name does not exist
[0] 3.21.39.160.in-addr.arpa.: domain name does not exist
[0] 4.21.39.160.in-addr.arpa.: domain name does not exist
[0] 5.21.39.160.in-addr.arpa.: domain name does not exist
[0] 6.21.39.160.in-addr.arpa.: domain name does not exist
[0] 7.21.39.160.in-addr.arpa.: domain name does not exist
[0] 8.21.39.160.in-addr.arpa.: domain name does not exist
[0] 9.21.39.160.in-addr.arpa.: domain name does not exist
[0] 10.21.39.160.in-addr.arpa.: domain name does not exist
[3600] 11.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-11.dyn.columbia.edu
[3600] 12.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-12.dyn.columbia.edu
[3600] 13.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-13.dyn.columbia.edu
[3600] 14.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-14.dyn.columbia.edu
[3600] 15.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-15.dyn.columbia.edu
[3600] 16.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-16.dyn.columbia.edu
[3600] 17.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-17.dyn.columbia.edu
[3600] 18.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-18.dyn.columbia.edu
[3600] 19.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-19.dyn.columbia.edu
[3600] 20.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-20.dyn.columbia.edu
[3600] 21.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-21.dyn.columbia.edu
[3600] 22.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-22.dyn.columbia.edu
[3600] 23.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-23.dyn.columbia.edu
[3600] 24.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-24.dyn.columbia.edu
[3600] 25.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-25.dyn.columbia.edu
[3600] 26.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-26.dyn.columbia.edu
[3600] 27.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-27.dyn.columbia.edu
[3600] 28.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-28.dyn.columbia.edu
[3600] 29.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-29.dyn.columbia.edu
[3600] 30.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-30.dyn.columbia.edu
[3600] 31.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-31.dyn.columbia.edu
[3600] 32.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-32.dyn.columbia.edu
[3600] 33.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-33.dyn.columbia.edu
[3600] 34.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-34.dyn.columbia.edu
[3600] 35.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-35.dyn.columbia.edu
[3600] 36.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-36.dyn.columbia.edu
[3600] 37.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-37.dyn.columbia.edu
[3600] 38.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-38.dyn.columbia.edu
[3600] 39.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-39.dyn.columbia.edu
[3600] 40.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-40.dyn.columbia.edu
[3600] 41.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-41.dyn.columbia.edu
[3600] 42.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-42.dyn.columbia.edu
[3600] 43.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-43.dyn.columbia.edu
[3600] 44.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-44.dyn.columbia.edu
[3600] 45.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-45.dyn.columbia.edu
[3600] 46.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-46.dyn.columbia.edu
[3600] 47.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-47.dyn.columbia.edu
[3600] 48.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-48.dyn.columbia.edu
[3600] 49.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-49.dyn.columbia.edu
[3600] 50.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-50.dyn.columbia.edu
[3600] 51.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-51.dyn.columbia.edu
[3600] 52.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-52.dyn.columbia.edu
[3600] 53.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-53.dyn.columbia.edu
[3600] 54.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-54.dyn.columbia.edu
[3600] 55.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-55.dyn.columbia.edu
[3600] 56.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-56.dyn.columbia.edu
[3600] 57.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-57.dyn.columbia.edu
[3600] 58.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-58.dyn.columbia.edu
[3600] 59.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-59.dyn.columbia.edu
[3600] 60.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-60.dyn.columbia.edu
[3600] 61.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-61.dyn.columbia.edu
[3600] 62.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-62.dyn.columbia.edu
[0] 63.21.39.160.in-addr.arpa.: domain name does not exist
[0] 64.21.39.160.in-addr.arpa.: domain name does not exist
[0] 65.21.39.160.in-addr.arpa.: domain name does not exist
[0] 66.21.39.160.in-addr.arpa.: domain name does not exist
[0] 67.21.39.160.in-addr.arpa.: domain name does not exist
[0] 68.21.39.160.in-addr.arpa.: domain name does not exist
[0] 69.21.39.160.in-addr.arpa.: domain name does not exist
[0] 70.21.39.160.in-addr.arpa.: domain name does not exist
[0] 71.21.39.160.in-addr.arpa.: domain name does not exist
[0] 72.21.39.160.in-addr.arpa.: domain name does not exist
[0] 73.21.39.160.in-addr.arpa.: domain name does not exist
[0] 74.21.39.160.in-addr.arpa.: domain name does not exist
[0] 75.21.39.160.in-addr.arpa.: domain name does not exist
[0] 76.21.39.160.in-addr.arpa.: domain name does not exist
[0] 77.21.39.160.in-addr.arpa.: domain name does not exist
[0] 78.21.39.160.in-addr.arpa.: domain name does not exist
[0] 79.21.39.160.in-addr.arpa.: domain name does not exist
[0] 80.21.39.160.in-addr.arpa.: domain name does not exist
[0] 81.21.39.160.in-addr.arpa.: domain name does not exist
[0] 82.21.39.160.in-addr.arpa.: domain name does not exist
[0] 83.21.39.160.in-addr.arpa.: domain name does not exist
[0] 84.21.39.160.in-addr.arpa.: domain name does not exist
[0] 85.21.39.160.in-addr.arpa.: domain name does not exist
[0] 86.21.39.160.in-addr.arpa.: domain name does not exist
[0] 87.21.39.160.in-addr.arpa.: domain name does not exist
[0] 88.21.39.160.in-addr.arpa.: domain name does not exist
[0] 89.21.39.160.in-addr.arpa.: domain name does not exist
[0] 90.21.39.160.in-addr.arpa.: domain name does not exist
[0] 91.21.39.160.in-addr.arpa.: domain name does not exist
[0] 92.21.39.160.in-addr.arpa.: domain name does not exist
[0] 93.21.39.160.in-addr.arpa.: domain name does not exist
[0] 94.21.39.160.in-addr.arpa.: domain name does not exist
[0] 95.21.39.160.in-addr.arpa.: domain name does not exist
[0] 96.21.39.160.in-addr.arpa.: domain name does not exist
[0] 97.21.39.160.in-addr.arpa.: domain name does not exist
[0] 98.21.39.160.in-addr.arpa.: domain name does not exist
[0] 99.21.39.160.in-addr.arpa.: domain name does not exist
[0] 100.21.39.160.in-addr.arpa.: domain name does not exist
[0] 101.21.39.160.in-addr.arpa.: domain name does not exist
[0] 102.21.39.160.in-addr.arpa.: domain name does not exist
[0] 103.21.39.160.in-addr.arpa.: domain name does not exist
[0] 104.21.39.160.in-addr.arpa.: domain name does not exist
[0] 105.21.39.160.in-addr.arpa.: domain name does not exist
[0] 106.21.39.160.in-addr.arpa.: domain name does not exist
[0] 107.21.39.160.in-addr.arpa.: domain name does not exist
[0] 108.21.39.160.in-addr.arpa.: domain name does not exist
[0] 109.21.39.160.in-addr.arpa.: domain name does not exist
[0] 110.21.39.160.in-addr.arpa.: domain name does not exist
[0] 111.21.39.160.in-addr.arpa.: domain name does not exist
[0] 112.21.39.160.in-addr.arpa.: domain name does not exist
[0] 113.21.39.160.in-addr.arpa.: domain name does not exist
[0] 114.21.39.160.in-addr.arpa.: domain name does not exist
[0] 115.21.39.160.in-addr.arpa.: domain name does not exist
[0] 116.21.39.160.in-addr.arpa.: domain name does not exist
[0] 117.21.39.160.in-addr.arpa.: domain name does not exist
[0] 118.21.39.160.in-addr.arpa.: domain name does not exist
[0] 119.21.39.160.in-addr.arpa.: domain name does not exist
[0] 120.21.39.160.in-addr.arpa.: domain name does not exist
[0] 121.21.39.160.in-addr.arpa.: domain name does not exist
[0] 122.21.39.160.in-addr.arpa.: domain name does not exist
[0] 123.21.39.160.in-addr.arpa.: domain name does not exist
[0] 124.21.39.160.in-addr.arpa.: domain name does not exist
[0] 125.21.39.160.in-addr.arpa.: domain name does not exist
[0] 126.21.39.160.in-addr.arpa.: domain name does not exist
[0] 127.21.39.160.in-addr.arpa.: domain name does not exist
[0] 128.21.39.160.in-addr.arpa.: domain name does not exist
[3600] 129.21.39.160.in-addr.arpa. domain name pointer law-edge-1-vlan990-1.net.columbia.edu
[0] 130.21.39.160.in-addr.arpa.: domain name does not exist
[0] 131.21.39.160.in-addr.arpa.: domain name does not exist
[0] 132.21.39.160.in-addr.arpa.: domain name does not exist
[0] 133.21.39.160.in-addr.arpa.: domain name does not exist
[0] 134.21.39.160.in-addr.arpa.: domain name does not exist
[0] 135.21.39.160.in-addr.arpa.: domain name does not exist
[0] 136.21.39.160.in-addr.arpa.: domain name does not exist
[0] 137.21.39.160.in-addr.arpa.: domain name does not exist
[0] 138.21.39.160.in-addr.arpa.: domain name does not exist
[0] 139.21.39.160.in-addr.arpa.: domain name does not exist
[3600] 140.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-140.dyn.columbia.edu
[3600] 141.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-141.dyn.columbia.edu
[3600] 142.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-142.dyn.columbia.edu
[3600] 143.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-143.dyn.columbia.edu
[3600] 144.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-144.dyn.columbia.edu
[3600] 145.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-145.dyn.columbia.edu
[3600] 146.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-146.dyn.columbia.edu
[3600] 147.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-147.dyn.columbia.edu
[3600] 148.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-148.dyn.columbia.edu
[3600] 149.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-149.dyn.columbia.edu
[3600] 150.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-150.dyn.columbia.edu
[3600] 151.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-151.dyn.columbia.edu
[3600] 152.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-152.dyn.columbia.edu
[3600] 153.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-153.dyn.columbia.edu
[3600] 154.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-154.dyn.columbia.edu
[3600] 155.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-155.dyn.columbia.edu
[3600] 156.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-156.dyn.columbia.edu
[3600] 157.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-157.dyn.columbia.edu
[3600] 158.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-158.dyn.columbia.edu
[3600] 159.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-159.dyn.columbia.edu
[3600] 160.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-160.dyn.columbia.edu
[3600] 161.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-161.dyn.columbia.edu
[3600] 162.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-162.dyn.columbia.edu
[3600] 163.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-163.dyn.columbia.edu
[3600] 164.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-164.dyn.columbia.edu
[3600] 165.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-165.dyn.columbia.edu
[3600] 166.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-166.dyn.columbia.edu
[3600] 167.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-167.dyn.columbia.edu
[3600] 168.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-168.dyn.columbia.edu
[3600] 169.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-169.dyn.columbia.edu
[3600] 170.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-170.dyn.columbia.edu
[3600] 171.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-171.dyn.columbia.edu
[3600] 172.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-172.dyn.columbia.edu
[3600] 173.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-173.dyn.columbia.edu
[3600] 174.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-174.dyn.columbia.edu
[3600] 175.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-175.dyn.columbia.edu
[3600] 176.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-176.dyn.columbia.edu
[3600] 177.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-177.dyn.columbia.edu
[3600] 178.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-178.dyn.columbia.edu
[3600] 179.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-179.dyn.columbia.edu
[3600] 180.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-180.dyn.columbia.edu
[3600] 181.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-181.dyn.columbia.edu
[3600] 182.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-182.dyn.columbia.edu
[3600] 183.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-183.dyn.columbia.edu
[3600] 184.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-184.dyn.columbia.edu
[3600] 185.21.39.160.in-addr.arpa. domain name pointer dyn-160-39-21-185.dyn.columbia.edu
[0] 186.21.39.160.in-addr.arpa.: domain name does not exist
[0] 187.21.39.160.in-addr.arpa.: domain name does not exist
[0] 188.21.39.160.in-addr.arpa.: domain name does not exist
[0] 189.21.39.160.in-addr.arpa.: domain name does not exist
[0] 190.21.39.160.in-addr.arpa.: domain name does not exist
[0] 191.21.39.160.in-addr.arpa.: domain name does not exist
[0] 192.21.39.160.in-addr.arpa.: domain name does not exist
[0] 193.21.39.160.in-addr.arpa.: domain name does not exist
[0] 194.21.39.160.in-addr.arpa.: domain name does not exist
[0] 195.21.39.160.in-addr.arpa.: domain name does not exist
[0] 196.21.39.160.in-addr.arpa.: domain name does not exist
[0] 197.21.39.160.in-addr.arpa.: domain name does not exist
[0] 198.21.39.160.in-addr.arpa.: domain name does not exist
[0] 199.21.39.160.in-addr.arpa.: domain name does not exist
[0] 200.21.39.160.in-addr.arpa.: domain name does not exist
[0] 201.21.39.160.in-addr.arpa.: domain name does not exist
[0] 202.21.39.160.in-addr.arpa.: domain name does not exist
[0] 203.21.39.160.in-addr.arpa.: domain name does not exist
[0] 204.21.39.160.in-addr.arpa.: domain name does not exist
[0] 205.21.39.160.in-addr.arpa.: domain name does not exist
[0] 206.21.39.160.in-addr.arpa.: domain name does not exist
[0] 207.21.39.160.in-addr.arpa.: domain name does not exist
[0] 208.21.39.160.in-addr.arpa.: domain name does not exist
[0] 209.21.39.160.in-addr.arpa.: domain name does not exist
[0] 210.21.39.160.in-addr.arpa.: domain name does not exist
[0] 211.21.39.160.in-addr.arpa.: domain name does not exist
[0] 212.21.39.160.in-addr.arpa.: domain name does not exist
[0] 213.21.39.160.in-addr.arpa.: domain name does not exist
[0] 214.21.39.160.in-addr.arpa.: domain name does not exist
[0] 215.21.39.160.in-addr.arpa.: domain name does not exist
[0] 216.21.39.160.in-addr.arpa.: domain name does not exist
[0] 217.21.39.160.in-addr.arpa.: domain name does not exist
[0] 218.21.39.160.in-addr.arpa.: domain name does not exist
[0] 219.21.39.160.in-addr.arpa.: domain name does not exist
[0] 220.21.39.160.in-addr.arpa.: domain name does not exist
[0] 221.21.39.160.in-addr.arpa.: domain name does not exist
[0] 222.21.39.160.in-addr.arpa.: domain name does not exist
[0] 223.21.39.160.in-addr.arpa.: domain name does not exist
[0] 224.21.39.160.in-addr.arpa.: domain name does not exist
[0] 225.21.39.160.in-addr.arpa.: domain name does not exist
[0] 226.21.39.160.in-addr.arpa.: domain name does not exist
[0] 227.21.39.160.in-addr.arpa.: domain name does not exist
[0] 228.21.39.160.in-addr.arpa.: domain name does not exist
[0] 229.21.39.160.in-addr.arpa.: domain name does not exist
[0] 230.21.39.160.in-addr.arpa.: domain name does not exist
[0] 231.21.39.160.in-addr.arpa.: domain name does not exist
[0] 232.21.39.160.in-addr.arpa.: domain name does not exist
[0] 233.21.39.160.in-addr.arpa.: domain name does not exist
[0] 234.21.39.160.in-addr.arpa.: domain name does not exist
[0] 235.21.39.160.in-addr.arpa.: domain name does not exist
[0] 236.21.39.160.in-addr.arpa.: domain name does not exist
[0] 237.21.39.160.in-addr.arpa.: domain name does not exist
[0] 238.21.39.160.in-addr.arpa.: domain name does not exist
[0] 239.21.39.160.in-addr.arpa.: domain name does not exist
[0] 240.21.39.160.in-addr.arpa.: domain name does not exist
[0] 241.21.39.160.in-addr.arpa.: domain name does not exist
[0] 242.21.39.160.in-addr.arpa.: domain name does not exist
[0] 243.21.39.160.in-addr.arpa.: domain name does not exist
[0] 244.21.39.160.in-addr.arpa.: domain name does not exist
[0] 245.21.39.160.in-addr.arpa.: domain name does not exist
[0] 246.21.39.160.in-addr.arpa.: domain name does not exist
[0] 247.21.39.160.in-addr.arpa.: domain name does not exist
[0] 248.21.39.160.in-addr.arpa.: domain name does not exist
[0] 249.21.39.160.in-addr.arpa.: domain name does not exist
[0] 250.21.39.160.in-addr.arpa.: domain name does not exist
[0] 251.21.39.160.in-addr.arpa.: domain name does not exist
[0] 252.21.39.160.in-addr.arpa.: domain name does not exist
[0] 253.21.39.160.in-addr.arpa.: domain name does not exist
[0] 254.21.39.160.in-addr.arpa.: domain name does not exist
[0] 255.21.39.160.in-addr.arpa.: domain name does not exist