[0] 0.0.152.18.in-addr.arpa.: domain name does not exist [1800] 1.0.152.18.in-addr.arpa. domain name pointer w92-rtr-1-new-nw23.mit.edu [0] 2.0.152.18.in-addr.arpa.: domain name does not exist [0] 3.0.152.18.in-addr.arpa.: domain name does not exist [0] 4.0.152.18.in-addr.arpa.: domain name does not exist [0] 5.0.152.18.in-addr.arpa.: domain name does not exist [0] 6.0.152.18.in-addr.arpa.: domain name does not exist [0] 7.0.152.18.in-addr.arpa.: domain name does not exist [0] 8.0.152.18.in-addr.arpa.: domain name does not exist [0] 9.0.152.18.in-addr.arpa.: domain name does not exist [0] 10.0.152.18.in-addr.arpa.: domain name does not exist [1800] 11.0.152.18.in-addr.arpa. domain name pointer av-nw23-166-rmc3.mit.edu [1800] 12.0.152.18.in-addr.arpa. domain name pointer av-nw23-248-rmc3.mit.edu [1800] 13.0.152.18.in-addr.arpa. domain name pointer av-nw23-249-cp3n.mit.edu [1800] 14.0.152.18.in-addr.arpa. domain name pointer av-nw23-266-rmc3.mit.edu [1800] 15.0.152.18.in-addr.arpa. domain name pointer av-nw23-vw-cp3n.mit.edu [1800] 16.0.152.18.in-addr.arpa. domain name pointer av-nw23-151-cp3n.mit.edu [1800] 17.0.152.18.in-addr.arpa. domain name pointer av-nw23-043-rmc3.mit.edu [1800] 18.0.152.18.in-addr.arpa. domain name pointer av-nw23-049-rmc3.mit.edu [1800] 19.0.152.18.in-addr.arpa. domain name pointer av-nw23-050-rmc3.mit.edu [1800] 20.0.152.18.in-addr.arpa. domain name pointer av-nw23-053-rmc3.mit.edu [1800] 21.0.152.18.in-addr.arpa. domain name pointer av-nw23-055-rmc3.mit.edu [1800] 22.0.152.18.in-addr.arpa. domain name pointer av-nw23-058-rmc3.mit.edu [1800] 23.0.152.18.in-addr.arpa. domain name pointer av-nw23-148-rmc3.mit.edu [1800] 24.0.152.18.in-addr.arpa. domain name pointer park-nw23-lot.mit.edu [1800] 25.0.152.18.in-addr.arpa. domain name pointer av-nw23-008-rmc3.mit.edu [1800] 26.0.152.18.in-addr.arpa. domain name pointer hpc01.mit.edu [1800] 27.0.152.18.in-addr.arpa. domain name pointer hpc02.mit.edu [1800] 28.0.152.18.in-addr.arpa. domain name pointer nw23-2-001.mit.edu [1800] 29.0.152.18.in-addr.arpa. domain name pointer nw23-2-002.mit.edu [1800] 30.0.152.18.in-addr.arpa. domain name pointer nw23-2-003.mit.edu [1800] 31.0.152.18.in-addr.arpa. domain name pointer nw23-2-004.mit.edu [1800] 32.0.152.18.in-addr.arpa. domain name pointer nw23-2-005.mit.edu [1800] 33.0.152.18.in-addr.arpa. domain name pointer nw23-2-006.mit.edu [1800] 34.0.152.18.in-addr.arpa. domain name pointer nw23-2-007.mit.edu [1800] 35.0.152.18.in-addr.arpa. domain name pointer nw23-2-008.mit.edu [1800] 36.0.152.18.in-addr.arpa. domain name pointer nw23-2-009.mit.edu [1800] 37.0.152.18.in-addr.arpa. domain name pointer nw23-2-010.mit.edu [1800] 38.0.152.18.in-addr.arpa. domain name pointer nw23-2-011.mit.edu [1800] 39.0.152.18.in-addr.arpa. domain name pointer nw23-2-012.mit.edu [1800] 40.0.152.18.in-addr.arpa. domain name pointer nw23-2-013.mit.edu [1800] 41.0.152.18.in-addr.arpa. domain name pointer nw23-2-014.mit.edu [1800] 42.0.152.18.in-addr.arpa. domain name pointer nw23-2-015.mit.edu [1800] 43.0.152.18.in-addr.arpa. domain name pointer nw23-2-016.mit.edu [1800] 44.0.152.18.in-addr.arpa. domain name pointer nw23-2-017.mit.edu [1800] 45.0.152.18.in-addr.arpa. domain name pointer nw23-2-018.mit.edu [1800] 46.0.152.18.in-addr.arpa. domain name pointer nw23-2-019.mit.edu [1800] 47.0.152.18.in-addr.arpa. domain name pointer nw23-2-020.mit.edu [1800] 48.0.152.18.in-addr.arpa. domain name pointer nw23-2-021.mit.edu [1800] 49.0.152.18.in-addr.arpa. domain name pointer nw23-2-022.mit.edu [1800] 50.0.152.18.in-addr.arpa. domain name pointer nw23-2-023.mit.edu [1800] 51.0.152.18.in-addr.arpa. domain name pointer nw23-2-024.mit.edu [1800] 52.0.152.18.in-addr.arpa. domain name pointer nw23-2-025.mit.edu [1800] 53.0.152.18.in-addr.arpa. domain name pointer nw23-2-026.mit.edu [1800] 54.0.152.18.in-addr.arpa. domain name pointer nw23-2-027.mit.edu [1800] 55.0.152.18.in-addr.arpa. domain name pointer nw23-2-028.mit.edu [1800] 56.0.152.18.in-addr.arpa. domain name pointer nw23-2-029.mit.edu [1800] 57.0.152.18.in-addr.arpa. domain name pointer nw23-2-030.mit.edu [1800] 58.0.152.18.in-addr.arpa. domain name pointer nw23-2-031.mit.edu [1800] 59.0.152.18.in-addr.arpa. domain name pointer nw23-2-032.mit.edu [1800] 60.0.152.18.in-addr.arpa. domain name pointer nw23-2-033.mit.edu [1800] 61.0.152.18.in-addr.arpa. domain name pointer nw23-2-034.mit.edu [0] 62.0.152.18.in-addr.arpa.: domain name does not exist [1800] 63.0.152.18.in-addr.arpa. domain name pointer nw23-2-035.mit.edu [1800] 64.0.152.18.in-addr.arpa. domain name pointer nw23-2-036.mit.edu [1800] 65.0.152.18.in-addr.arpa. domain name pointer nw23-2-037.mit.edu [1800] 66.0.152.18.in-addr.arpa. domain name pointer nw23-2-038.mit.edu [1800] 67.0.152.18.in-addr.arpa. domain name pointer nw23-2-039.mit.edu [1800] 68.0.152.18.in-addr.arpa. domain name pointer nw23-2-040.mit.edu [1800] 69.0.152.18.in-addr.arpa. domain name pointer nw23-2-041.mit.edu [1800] 70.0.152.18.in-addr.arpa. domain name pointer nw23-2-042.mit.edu [1800] 71.0.152.18.in-addr.arpa. domain name pointer nw23-2-043.mit.edu [1800] 72.0.152.18.in-addr.arpa. domain name pointer nw23-2-044.mit.edu [1800] 73.0.152.18.in-addr.arpa. domain name pointer nw23-2-045.mit.edu [1800] 74.0.152.18.in-addr.arpa. domain name pointer nw23-2-046.mit.edu [1800] 75.0.152.18.in-addr.arpa. domain name pointer nw23-2-047.mit.edu [1800] 76.0.152.18.in-addr.arpa. domain name pointer nw23-2-048.mit.edu [1800] 77.0.152.18.in-addr.arpa. domain name pointer nw23-2-049.mit.edu [1800] 78.0.152.18.in-addr.arpa. domain name pointer nw23-2-050.mit.edu [1800] 79.0.152.18.in-addr.arpa. domain name pointer nw23-2-051.mit.edu [1800] 80.0.152.18.in-addr.arpa. domain name pointer nw23-2-052.mit.edu [1800] 81.0.152.18.in-addr.arpa. domain name pointer nw23-2-053.mit.edu [1800] 82.0.152.18.in-addr.arpa. domain name pointer nw23-2-054.mit.edu [1800] 83.0.152.18.in-addr.arpa. domain name pointer nw23-2-055.mit.edu [1800] 84.0.152.18.in-addr.arpa. domain name pointer nw23-2-056.mit.edu [1800] 85.0.152.18.in-addr.arpa. domain name pointer nw23-2-057.mit.edu [1800] 86.0.152.18.in-addr.arpa. domain name pointer nw23-2-058.mit.edu [1800] 87.0.152.18.in-addr.arpa. domain name pointer nw23-2-059.mit.edu [1800] 88.0.152.18.in-addr.arpa. domain name pointer nw23-2-060.mit.edu [1800] 89.0.152.18.in-addr.arpa. domain name pointer nw23-2-061.mit.edu [1800] 90.0.152.18.in-addr.arpa. domain name pointer nw23-2-062.mit.edu [1800] 91.0.152.18.in-addr.arpa. domain name pointer nw23-2-063.mit.edu [1800] 92.0.152.18.in-addr.arpa. domain name pointer nw23-2-064.mit.edu [1800] 93.0.152.18.in-addr.arpa. domain name pointer nw23-2-065.mit.edu [1800] 94.0.152.18.in-addr.arpa. domain name pointer nw23-2-066.mit.edu [1800] 95.0.152.18.in-addr.arpa. domain name pointer nw23-2-067.mit.edu [1800] 96.0.152.18.in-addr.arpa. domain name pointer nw23-2-068.mit.edu [1800] 97.0.152.18.in-addr.arpa. domain name pointer nw23-2-069.mit.edu [1800] 98.0.152.18.in-addr.arpa. domain name pointer nw23-2-070.mit.edu [1800] 99.0.152.18.in-addr.arpa. domain name pointer nw23-2-071.mit.edu [1800] 100.0.152.18.in-addr.arpa. domain name pointer nw23-2-072.mit.edu [1800] 101.0.152.18.in-addr.arpa. domain name pointer nw23-2-073.mit.edu [1800] 102.0.152.18.in-addr.arpa. domain name pointer nw23-2-074.mit.edu [1800] 103.0.152.18.in-addr.arpa. domain name pointer nw23-2-075.mit.edu [1800] 104.0.152.18.in-addr.arpa. domain name pointer nw23-2-076.mit.edu [1800] 105.0.152.18.in-addr.arpa. domain name pointer nw23-2-077.mit.edu [1800] 106.0.152.18.in-addr.arpa. domain name pointer nw23-2-078.mit.edu [1800] 107.0.152.18.in-addr.arpa. domain name pointer nw23-2-079.mit.edu [1800] 108.0.152.18.in-addr.arpa. domain name pointer nw23-2-080.mit.edu [1800] 109.0.152.18.in-addr.arpa. domain name pointer nw23-2-081.mit.edu [1800] 110.0.152.18.in-addr.arpa. domain name pointer nw23-2-082.mit.edu [1800] 111.0.152.18.in-addr.arpa. domain name pointer nw23-2-083.mit.edu [1800] 112.0.152.18.in-addr.arpa. domain name pointer nw23-2-084.mit.edu [1800] 113.0.152.18.in-addr.arpa. domain name pointer nw23-2-085.mit.edu [1800] 114.0.152.18.in-addr.arpa. domain name pointer nw23-2-086.mit.edu [1800] 115.0.152.18.in-addr.arpa. domain name pointer nw23-2-087.mit.edu [1800] 116.0.152.18.in-addr.arpa. domain name pointer nw23-2-088.mit.edu [1800] 117.0.152.18.in-addr.arpa. domain name pointer nw23-2-089.mit.edu [1800] 118.0.152.18.in-addr.arpa. domain name pointer nw23-2-090.mit.edu [1800] 119.0.152.18.in-addr.arpa. domain name pointer nw23-2-091.mit.edu [1800] 120.0.152.18.in-addr.arpa. domain name pointer nw23-2-092.mit.edu [1800] 121.0.152.18.in-addr.arpa. domain name pointer nw23-2-093.mit.edu [1800] 122.0.152.18.in-addr.arpa. domain name pointer nw23-2-094.mit.edu [1800] 123.0.152.18.in-addr.arpa. domain name pointer nw23-2-095.mit.edu [1800] 124.0.152.18.in-addr.arpa. domain name pointer nw23-2-096.mit.edu [1800] 125.0.152.18.in-addr.arpa. domain name pointer nw23-2-097.mit.edu [0] 126.0.152.18.in-addr.arpa.: domain name does not exist [1800] 127.0.152.18.in-addr.arpa. domain name pointer nw23-2-098.mit.edu [1800] 128.0.152.18.in-addr.arpa. domain name pointer nw23-2-099.mit.edu [1800] 129.0.152.18.in-addr.arpa. domain name pointer nw23-2-100.mit.edu [1800] 130.0.152.18.in-addr.arpa. domain name pointer nw23-2-101.mit.edu [1800] 131.0.152.18.in-addr.arpa. domain name pointer nw23-2-102.mit.edu [1800] 132.0.152.18.in-addr.arpa. domain name pointer nw23-2-103.mit.edu [1800] 133.0.152.18.in-addr.arpa. domain name pointer nw23-2-104.mit.edu [1800] 134.0.152.18.in-addr.arpa. domain name pointer nw23-2-105.mit.edu [1800] 135.0.152.18.in-addr.arpa. domain name pointer nw23-2-106.mit.edu [1800] 136.0.152.18.in-addr.arpa. domain name pointer nw23-2-107.mit.edu [1800] 137.0.152.18.in-addr.arpa. domain name pointer nw23-2-108.mit.edu [1800] 138.0.152.18.in-addr.arpa. domain name pointer nw23-2-109.mit.edu [1800] 139.0.152.18.in-addr.arpa. domain name pointer nw23-2-110.mit.edu [1800] 140.0.152.18.in-addr.arpa. domain name pointer nw23-2-111.mit.edu [1800] 141.0.152.18.in-addr.arpa. domain name pointer nw23-2-112.mit.edu [1800] 142.0.152.18.in-addr.arpa. domain name pointer rla.mit.edu [1800] 143.0.152.18.in-addr.arpa. domain name pointer kp01.mit.edu [1800] 144.0.152.18.in-addr.arpa. domain name pointer nw23-g-001.mit.edu [1800] 145.0.152.18.in-addr.arpa. domain name pointer nw23-g-002.mit.edu [1800] 146.0.152.18.in-addr.arpa. domain name pointer nw23-g-003.mit.edu [1800] 147.0.152.18.in-addr.arpa. domain name pointer nw23-g-004.mit.edu [1800] 148.0.152.18.in-addr.arpa. domain name pointer nw23-g-005.mit.edu [1800] 149.0.152.18.in-addr.arpa. domain name pointer nw23-g-006.mit.edu [1800] 150.0.152.18.in-addr.arpa. domain name pointer nw23-g-007.mit.edu [1800] 151.0.152.18.in-addr.arpa. domain name pointer nw23-g-008.mit.edu [1800] 152.0.152.18.in-addr.arpa. domain name pointer nw23-g-009.mit.edu [1800] 153.0.152.18.in-addr.arpa. domain name pointer nw23-g-010.mit.edu [1800] 154.0.152.18.in-addr.arpa. domain name pointer nw23-g-011.mit.edu [1800] 155.0.152.18.in-addr.arpa. domain name pointer nw23-g-012.mit.edu [1800] 156.0.152.18.in-addr.arpa. domain name pointer nw23-g-013.mit.edu [1800] 157.0.152.18.in-addr.arpa. domain name pointer nw23-g-014.mit.edu [1800] 158.0.152.18.in-addr.arpa. domain name pointer nw23-g-015.mit.edu [1800] 159.0.152.18.in-addr.arpa. domain name pointer nw23-g-016.mit.edu [1800] 160.0.152.18.in-addr.arpa. domain name pointer nw23-g-017.mit.edu [1800] 161.0.152.18.in-addr.arpa. domain name pointer nw23-g-018.mit.edu [1800] 162.0.152.18.in-addr.arpa. domain name pointer nw23-g-019.mit.edu [1800] 163.0.152.18.in-addr.arpa. domain name pointer nw23-g-020.mit.edu [1800] 164.0.152.18.in-addr.arpa. domain name pointer nw23-g-021.mit.edu [1800] 165.0.152.18.in-addr.arpa. domain name pointer nw23-g-022.mit.edu [1800] 166.0.152.18.in-addr.arpa. domain name pointer nw23-g-023.mit.edu [1800] 167.0.152.18.in-addr.arpa. domain name pointer nw23-g-024.mit.edu [1800] 168.0.152.18.in-addr.arpa. domain name pointer nw23-g-025.mit.edu [1800] 169.0.152.18.in-addr.arpa. domain name pointer nw23-g-026.mit.edu [1800] 170.0.152.18.in-addr.arpa. domain name pointer nw23-g-027.mit.edu [1800] 171.0.152.18.in-addr.arpa. domain name pointer nw23-g-028.mit.edu [1800] 172.0.152.18.in-addr.arpa. domain name pointer nw23-g-029.mit.edu [1800] 173.0.152.18.in-addr.arpa. domain name pointer nw23-g-030.mit.edu [1800] 174.0.152.18.in-addr.arpa. domain name pointer nw23-g-031.mit.edu [1800] 175.0.152.18.in-addr.arpa. domain name pointer nw23-g-032.mit.edu [1800] 176.0.152.18.in-addr.arpa. domain name pointer nw23-g-033.mit.edu [1800] 177.0.152.18.in-addr.arpa. domain name pointer nw23-g-034.mit.edu [1800] 178.0.152.18.in-addr.arpa. domain name pointer nw23-g-035.mit.edu [1800] 179.0.152.18.in-addr.arpa. domain name pointer nw23-g-036.mit.edu [1800] 180.0.152.18.in-addr.arpa. domain name pointer nw23-g-037.mit.edu [1800] 181.0.152.18.in-addr.arpa. domain name pointer nw23-g-038.mit.edu [1800] 182.0.152.18.in-addr.arpa. domain name pointer nw23-g-039.mit.edu [1800] 183.0.152.18.in-addr.arpa. domain name pointer nw23-g-040.mit.edu [1800] 184.0.152.18.in-addr.arpa. domain name pointer nw23-g-041.mit.edu [1800] 185.0.152.18.in-addr.arpa. domain name pointer nw23-g-042.mit.edu [1800] 186.0.152.18.in-addr.arpa. domain name pointer nw23-g-043.mit.edu [1800] 187.0.152.18.in-addr.arpa. domain name pointer nw23-g-044.mit.edu [1800] 188.0.152.18.in-addr.arpa. domain name pointer nw23-g-045.mit.edu [1800] 189.0.152.18.in-addr.arpa. domain name pointer nw23-g-046.mit.edu [1800] 190.0.152.18.in-addr.arpa. domain name pointer nw23-g-047.mit.edu [1800] 191.0.152.18.in-addr.arpa. domain name pointer nw23-g-048.mit.edu [1800] 192.0.152.18.in-addr.arpa. domain name pointer nw23-g-049.mit.edu [1800] 193.0.152.18.in-addr.arpa. domain name pointer nw23-g-050.mit.edu [1800] 194.0.152.18.in-addr.arpa. domain name pointer nw23-g-051.mit.edu [1800] 195.0.152.18.in-addr.arpa. domain name pointer nw23-g-052.mit.edu [1800] 196.0.152.18.in-addr.arpa. domain name pointer nw23-g-053.mit.edu [1800] 197.0.152.18.in-addr.arpa. domain name pointer nw23-g-054.mit.edu [1800] 198.0.152.18.in-addr.arpa. domain name pointer nw23-g-055.mit.edu [1800] 199.0.152.18.in-addr.arpa. domain name pointer nw23-g-056.mit.edu [1800] 200.0.152.18.in-addr.arpa. domain name pointer nw23-g-057.mit.edu [1800] 201.0.152.18.in-addr.arpa. domain name pointer nw23-g-058.mit.edu [1800] 202.0.152.18.in-addr.arpa. domain name pointer nw23-g-059.mit.edu [1800] 203.0.152.18.in-addr.arpa. domain name pointer nw23-g-060.mit.edu [1800] 204.0.152.18.in-addr.arpa. domain name pointer nw23-g-061.mit.edu [1800] 205.0.152.18.in-addr.arpa. domain name pointer nw23-g-062.mit.edu [1800] 206.0.152.18.in-addr.arpa. domain name pointer nw23-g-063.mit.edu [0] 207.0.152.18.in-addr.arpa.: domain name does not exist [1800] 208.0.152.18.in-addr.arpa. domain name pointer nw23-g-064.mit.edu [1800] 209.0.152.18.in-addr.arpa. domain name pointer nw23-g-065.mit.edu [1800] 210.0.152.18.in-addr.arpa. domain name pointer nw23-g-066.mit.edu [1800] 211.0.152.18.in-addr.arpa. domain name pointer nw23-g-067.mit.edu [1800] 212.0.152.18.in-addr.arpa. domain name pointer nw23-g-068.mit.edu [1800] 213.0.152.18.in-addr.arpa. domain name pointer nw23-g-069.mit.edu [1800] 214.0.152.18.in-addr.arpa. domain name pointer nw23-g-070.mit.edu [1800] 215.0.152.18.in-addr.arpa. domain name pointer nw23-g-071.mit.edu [1800] 216.0.152.18.in-addr.arpa. domain name pointer nw23-g-072.mit.edu [1800] 217.0.152.18.in-addr.arpa. domain name pointer nw23-g-073.mit.edu [1800] 218.0.152.18.in-addr.arpa. domain name pointer nw23-g-074.mit.edu [0] 219.0.152.18.in-addr.arpa.: domain name does not exist [0] 220.0.152.18.in-addr.arpa.: domain name does not exist [1800] 221.0.152.18.in-addr.arpa. domain name pointer nw23-g-075.mit.edu [1800] 222.0.152.18.in-addr.arpa. domain name pointer nw23-g-076.mit.edu [1800] 223.0.152.18.in-addr.arpa. domain name pointer nw23-g-077.mit.edu [1800] 224.0.152.18.in-addr.arpa. domain name pointer nw23-g-078.mit.edu [1800] 225.0.152.18.in-addr.arpa. domain name pointer nw23-g-079.mit.edu [1800] 226.0.152.18.in-addr.arpa. domain name pointer nw23-g-080.mit.edu [1800] 227.0.152.18.in-addr.arpa. domain name pointer nw23-g-081.mit.edu [1800] 228.0.152.18.in-addr.arpa. domain name pointer nw23-g-082.mit.edu [1800] 229.0.152.18.in-addr.arpa. domain name pointer nw23-g-083.mit.edu [1800] 230.0.152.18.in-addr.arpa. domain name pointer nw23-g-084.mit.edu [1800] 231.0.152.18.in-addr.arpa. domain name pointer nw23-g-085.mit.edu [1800] 232.0.152.18.in-addr.arpa. domain name pointer nw23-g-086.mit.edu [1800] 233.0.152.18.in-addr.arpa. domain name pointer nw23-g-087.mit.edu [1800] 234.0.152.18.in-addr.arpa. domain name pointer nw23-g-088.mit.edu [1800] 235.0.152.18.in-addr.arpa. domain name pointer nw23-g-089.mit.edu [0] 236.0.152.18.in-addr.arpa.: domain name does not exist [1800] 237.0.152.18.in-addr.arpa. domain name pointer nw23-g-090.mit.edu [1800] 238.0.152.18.in-addr.arpa. domain name pointer nw23-g-091.mit.edu [1800] 239.0.152.18.in-addr.arpa. domain name pointer nw23-g-092.mit.edu [1800] 240.0.152.18.in-addr.arpa. domain name pointer nw23-g-093.mit.edu [1800] 241.0.152.18.in-addr.arpa. domain name pointer nw23-g-094.mit.edu [1800] 242.0.152.18.in-addr.arpa. domain name pointer nw23-g-095.mit.edu [1800] 243.0.152.18.in-addr.arpa. domain name pointer nw23-g-096.mit.edu [0] 244.0.152.18.in-addr.arpa.: domain name does not exist [1800] 245.0.152.18.in-addr.arpa. domain name pointer nw23-g-097.mit.edu [1800] 246.0.152.18.in-addr.arpa. domain name pointer nw23-g-098.mit.edu [1800] 247.0.152.18.in-addr.arpa. domain name pointer nw23-g-099.mit.edu [1800] 248.0.152.18.in-addr.arpa. domain name pointer nw23-g-100.mit.edu [1800] 249.0.152.18.in-addr.arpa. domain name pointer nw23-g-101.mit.edu [1800] 250.0.152.18.in-addr.arpa. domain name pointer nw23-g-102.mit.edu [1800] 251.0.152.18.in-addr.arpa. domain name pointer nw23-g-103.mit.edu [1800] 252.0.152.18.in-addr.arpa. domain name pointer nw23-g-104.mit.edu [1800] 253.0.152.18.in-addr.arpa. domain name pointer nw23-g-105.mit.edu [1800] 254.0.152.18.in-addr.arpa. domain name pointer nw23-g-106.mit.edu [0] 255.0.152.18.in-addr.arpa.: domain name does not exist