[0] 0.21.109.193.in-addr.arpa.: domain name does not exist
[86400] 1.21.109.193.in-addr.arpa. domain name pointer nat-mw-1.du.snerpa.is
[86400] 2.21.109.193.in-addr.arpa. domain name pointer nat-mw-2.du.snerpa.is
[86400] 3.21.109.193.in-addr.arpa. domain name pointer nat-mw-3.du.snerpa.is
[86400] 4.21.109.193.in-addr.arpa. domain name pointer nat-mw-4.du.snerpa.is
[86400] 5.21.109.193.in-addr.arpa. domain name pointer nat-mw-5.du.snerpa.is
[86400] 6.21.109.193.in-addr.arpa. domain name pointer nat-mw-6.du.snerpa.is
[86400] 7.21.109.193.in-addr.arpa. domain name pointer nat-mw-7.du.snerpa.is
[86400] 8.21.109.193.in-addr.arpa. domain name pointer nat-mw-8.du.snerpa.is
[86400] 9.21.109.193.in-addr.arpa. domain name pointer nat-mw-9.du.snerpa.is
[86400] 10.21.109.193.in-addr.arpa. domain name pointer nat-mw-10.du.snerpa.is
[86400] 11.21.109.193.in-addr.arpa. domain name pointer nat-mw-11.du.snerpa.is
[86400] 12.21.109.193.in-addr.arpa. domain name pointer nat-mw-12.du.snerpa.is
[86400] 13.21.109.193.in-addr.arpa. domain name pointer nat-mw-13.du.snerpa.is
[86400] 14.21.109.193.in-addr.arpa. domain name pointer nat-mw-14.du.snerpa.is
[86400] 15.21.109.193.in-addr.arpa. domain name pointer nat-mw-15.du.snerpa.is
[86400] 16.21.109.193.in-addr.arpa. domain name pointer nat-mw-16.du.snerpa.is
[86400] 17.21.109.193.in-addr.arpa. domain name pointer nat-mw-17.du.snerpa.is
[86400] 18.21.109.193.in-addr.arpa. domain name pointer nat-mw-18.du.snerpa.is
[86400] 19.21.109.193.in-addr.arpa. domain name pointer nat-mw-19.du.snerpa.is
[86400] 20.21.109.193.in-addr.arpa. domain name pointer nat-mw-20.du.snerpa.is
[86400] 21.21.109.193.in-addr.arpa. domain name pointer nat-mw-21.du.snerpa.is
[86400] 22.21.109.193.in-addr.arpa. domain name pointer nat-mw-22.du.snerpa.is
[86400] 23.21.109.193.in-addr.arpa. domain name pointer nat-mw-23.du.snerpa.is
[86400] 24.21.109.193.in-addr.arpa. domain name pointer nat-mw-24.du.snerpa.is
[86400] 25.21.109.193.in-addr.arpa. domain name pointer nat-mw-25.du.snerpa.is
[86400] 26.21.109.193.in-addr.arpa. domain name pointer nat-mw-26.du.snerpa.is
[86400] 27.21.109.193.in-addr.arpa. domain name pointer nat-mw-27.du.snerpa.is
[86400] 28.21.109.193.in-addr.arpa. domain name pointer nat-mw-28.du.snerpa.is
[86400] 29.21.109.193.in-addr.arpa. domain name pointer nat-mw-29.du.snerpa.is
[86400] 30.21.109.193.in-addr.arpa. domain name pointer nat-mw-30.du.snerpa.is
[86400] 31.21.109.193.in-addr.arpa. domain name pointer nat-mw-31.du.snerpa.is
[86400] 32.21.109.193.in-addr.arpa. domain name pointer nat-mw-32.du.snerpa.is
[86400] 33.21.109.193.in-addr.arpa. domain name pointer nat-mw-33.du.snerpa.is
[86400] 34.21.109.193.in-addr.arpa. domain name pointer nat-mw-34.du.snerpa.is
[86400] 35.21.109.193.in-addr.arpa. domain name pointer nat-mw-35.du.snerpa.is
[86400] 36.21.109.193.in-addr.arpa. domain name pointer nat-mw-36.du.snerpa.is
[86400] 37.21.109.193.in-addr.arpa. domain name pointer nat-mw-37.du.snerpa.is
[86400] 38.21.109.193.in-addr.arpa. domain name pointer nat-mw-38.du.snerpa.is
[86400] 39.21.109.193.in-addr.arpa. domain name pointer nat-mw-39.du.snerpa.is
[86400] 40.21.109.193.in-addr.arpa. domain name pointer nat-mw-40.du.snerpa.is
[86400] 41.21.109.193.in-addr.arpa. domain name pointer nat-mw-41.du.snerpa.is
[86400] 42.21.109.193.in-addr.arpa. domain name pointer nat-mw-42.du.snerpa.is
[86400] 43.21.109.193.in-addr.arpa. domain name pointer nat-mw-43.du.snerpa.is
[86400] 44.21.109.193.in-addr.arpa. domain name pointer nat-mw-44.du.snerpa.is
[86400] 45.21.109.193.in-addr.arpa. domain name pointer nat-mw-45.du.snerpa.is
[86400] 46.21.109.193.in-addr.arpa. domain name pointer nat-mw-46.du.snerpa.is
[86400] 47.21.109.193.in-addr.arpa. domain name pointer nat-mw-47.du.snerpa.is
[86400] 48.21.109.193.in-addr.arpa. domain name pointer nat-mw-48.du.snerpa.is
[86400] 49.21.109.193.in-addr.arpa. domain name pointer nat-mw-49.du.snerpa.is
[86400] 50.21.109.193.in-addr.arpa. domain name pointer nat-mw-50.du.snerpa.is
[86400] 51.21.109.193.in-addr.arpa. domain name pointer nat-mw-51.du.snerpa.is
[86400] 52.21.109.193.in-addr.arpa. domain name pointer nat-mw-52.du.snerpa.is
[86400] 53.21.109.193.in-addr.arpa. domain name pointer nat-mw-53.du.snerpa.is
[86400] 54.21.109.193.in-addr.arpa. domain name pointer nat-mw-54.du.snerpa.is
[86400] 55.21.109.193.in-addr.arpa. domain name pointer nat-mw-55.du.snerpa.is
[86400] 56.21.109.193.in-addr.arpa. domain name pointer nat-mw-56.du.snerpa.is
[86400] 57.21.109.193.in-addr.arpa. domain name pointer nat-mw-57.du.snerpa.is
[86400] 58.21.109.193.in-addr.arpa. domain name pointer nat-mw-58.du.snerpa.is
[86400] 59.21.109.193.in-addr.arpa. domain name pointer nat-mw-59.du.snerpa.is
[86400] 60.21.109.193.in-addr.arpa. domain name pointer nat-mw-60.du.snerpa.is
[86400] 61.21.109.193.in-addr.arpa. domain name pointer nat-mw-61.du.snerpa.is
[86400] 62.21.109.193.in-addr.arpa. domain name pointer nat-mw-62.du.snerpa.is
[86400] 63.21.109.193.in-addr.arpa. domain name pointer nat-mw-63.du.snerpa.is
[86400] 64.21.109.193.in-addr.arpa. domain name pointer nat-mw-64.du.snerpa.is
[86400] 65.21.109.193.in-addr.arpa. domain name pointer nat-mw-65.du.snerpa.is
[86400] 66.21.109.193.in-addr.arpa. domain name pointer nat-mw-66.du.snerpa.is
[86400] 67.21.109.193.in-addr.arpa. domain name pointer nat-mw-67.du.snerpa.is
[86400] 68.21.109.193.in-addr.arpa. domain name pointer nat-mw-68.du.snerpa.is
[86400] 69.21.109.193.in-addr.arpa. domain name pointer nat-mw-69.du.snerpa.is
[86400] 70.21.109.193.in-addr.arpa. domain name pointer nat-mw-70.du.snerpa.is
[86400] 71.21.109.193.in-addr.arpa. domain name pointer nat-mw-71.du.snerpa.is
[86400] 72.21.109.193.in-addr.arpa. domain name pointer nat-mw-72.du.snerpa.is
[86400] 73.21.109.193.in-addr.arpa. domain name pointer nat-mw-73.du.snerpa.is
[86400] 74.21.109.193.in-addr.arpa. domain name pointer nat-mw-74.du.snerpa.is
[86400] 75.21.109.193.in-addr.arpa. domain name pointer nat-mw-75.du.snerpa.is
[86400] 76.21.109.193.in-addr.arpa. domain name pointer nat-mw-76.du.snerpa.is
[86400] 77.21.109.193.in-addr.arpa. domain name pointer nat-mw-77.du.snerpa.is
[86400] 78.21.109.193.in-addr.arpa. domain name pointer nat-mw-78.du.snerpa.is
[86400] 79.21.109.193.in-addr.arpa. domain name pointer nat-mw-79.du.snerpa.is
[86400] 80.21.109.193.in-addr.arpa. domain name pointer nat-mw-80.du.snerpa.is
[86400] 81.21.109.193.in-addr.arpa. domain name pointer nat-mw-81.du.snerpa.is
[86400] 82.21.109.193.in-addr.arpa. domain name pointer nat-mw-82.du.snerpa.is
[86400] 83.21.109.193.in-addr.arpa. domain name pointer nat-mw-83.du.snerpa.is
[86400] 84.21.109.193.in-addr.arpa. domain name pointer nat-mw-84.du.snerpa.is
[86400] 85.21.109.193.in-addr.arpa. domain name pointer nat-mw-85.du.snerpa.is
[86400] 86.21.109.193.in-addr.arpa. domain name pointer nat-mw-86.du.snerpa.is
[86400] 87.21.109.193.in-addr.arpa. domain name pointer nat-mw-87.du.snerpa.is
[86400] 88.21.109.193.in-addr.arpa. domain name pointer nat-mw-88.du.snerpa.is
[86400] 89.21.109.193.in-addr.arpa. domain name pointer nat-mw-89.du.snerpa.is
[86400] 90.21.109.193.in-addr.arpa. domain name pointer nat-mw-90.du.snerpa.is
[86400] 91.21.109.193.in-addr.arpa. domain name pointer nat-mw-91.du.snerpa.is
[86400] 92.21.109.193.in-addr.arpa. domain name pointer nat-mw-92.du.snerpa.is
[86400] 93.21.109.193.in-addr.arpa. domain name pointer nat-mw-93.du.snerpa.is
[86400] 94.21.109.193.in-addr.arpa. domain name pointer nat-mw-94.du.snerpa.is
[86400] 95.21.109.193.in-addr.arpa. domain name pointer nat-mw-95.du.snerpa.is
[86400] 96.21.109.193.in-addr.arpa. domain name pointer nat-mw-96.du.snerpa.is
[86400] 97.21.109.193.in-addr.arpa. domain name pointer nat-mw-97.du.snerpa.is
[86400] 98.21.109.193.in-addr.arpa. domain name pointer nat-mw-98.du.snerpa.is
[86400] 99.21.109.193.in-addr.arpa. domain name pointer nat-mw-99.du.snerpa.is
[86400] 100.21.109.193.in-addr.arpa. domain name pointer nat-mw-100.du.snerpa.is
[86400] 101.21.109.193.in-addr.arpa. domain name pointer nat-mw-101.du.snerpa.is
[86400] 102.21.109.193.in-addr.arpa. domain name pointer nat-mw-102.du.snerpa.is
[86400] 103.21.109.193.in-addr.arpa. domain name pointer nat-mw-103.du.snerpa.is
[86400] 104.21.109.193.in-addr.arpa. domain name pointer nat-mw-104.du.snerpa.is
[86400] 105.21.109.193.in-addr.arpa. domain name pointer nat-mw-105.du.snerpa.is
[86400] 106.21.109.193.in-addr.arpa. domain name pointer nat-mw-106.du.snerpa.is
[86400] 107.21.109.193.in-addr.arpa. domain name pointer nat-mw-107.du.snerpa.is
[86400] 108.21.109.193.in-addr.arpa. domain name pointer nat-mw-108.du.snerpa.is
[86400] 109.21.109.193.in-addr.arpa. domain name pointer nat-mw-109.du.snerpa.is
[86400] 110.21.109.193.in-addr.arpa. domain name pointer nat-mw-110.du.snerpa.is
[86400] 111.21.109.193.in-addr.arpa. domain name pointer nat-mw-111.du.snerpa.is
[86400] 112.21.109.193.in-addr.arpa. domain name pointer nat-mw-112.du.snerpa.is
[86400] 113.21.109.193.in-addr.arpa. domain name pointer nat-mw-113.du.snerpa.is
[86400] 114.21.109.193.in-addr.arpa. domain name pointer nat-mw-114.du.snerpa.is
[86400] 115.21.109.193.in-addr.arpa. domain name pointer nat-mw-115.du.snerpa.is
[86400] 116.21.109.193.in-addr.arpa. domain name pointer nat-mw-116.du.snerpa.is
[86400] 117.21.109.193.in-addr.arpa. domain name pointer nat-mw-117.du.snerpa.is
[86400] 118.21.109.193.in-addr.arpa. domain name pointer nat-mw-118.du.snerpa.is
[86400] 119.21.109.193.in-addr.arpa. domain name pointer nat-mw-119.du.snerpa.is
[86400] 120.21.109.193.in-addr.arpa. domain name pointer nat-mw-120.du.snerpa.is
[86400] 121.21.109.193.in-addr.arpa. domain name pointer nat-mw-121.du.snerpa.is
[86400] 122.21.109.193.in-addr.arpa. domain name pointer nat-mw-122.du.snerpa.is
[86400] 123.21.109.193.in-addr.arpa. domain name pointer nat-mw-123.du.snerpa.is
[86400] 124.21.109.193.in-addr.arpa. domain name pointer nat-mw-124.du.snerpa.is
[86400] 125.21.109.193.in-addr.arpa. domain name pointer nat-mw-125.du.snerpa.is
[86400] 126.21.109.193.in-addr.arpa. domain name pointer nat-mw-126.du.snerpa.is
[86400] 127.21.109.193.in-addr.arpa. domain name pointer nat-mw-127.du.snerpa.is
[0] 128.21.109.193.in-addr.arpa.: domain name does not exist
[0] 129.21.109.193.in-addr.arpa.: domain name does not exist
[0] 130.21.109.193.in-addr.arpa.: domain name does not exist
[0] 131.21.109.193.in-addr.arpa.: domain name does not exist
[0] 132.21.109.193.in-addr.arpa.: domain name does not exist
[0] 133.21.109.193.in-addr.arpa.: domain name does not exist
[0] 134.21.109.193.in-addr.arpa.: domain name does not exist
[0] 135.21.109.193.in-addr.arpa.: domain name does not exist
[0] 136.21.109.193.in-addr.arpa.: domain name does not exist
[0] 137.21.109.193.in-addr.arpa.: domain name does not exist
[0] 138.21.109.193.in-addr.arpa.: domain name does not exist
[0] 139.21.109.193.in-addr.arpa.: domain name does not exist
[0] 140.21.109.193.in-addr.arpa.: domain name does not exist
[0] 141.21.109.193.in-addr.arpa.: domain name does not exist
[0] 142.21.109.193.in-addr.arpa.: domain name does not exist
[0] 143.21.109.193.in-addr.arpa.: domain name does not exist
[0] 144.21.109.193.in-addr.arpa.: domain name does not exist
[0] 145.21.109.193.in-addr.arpa.: domain name does not exist
[0] 146.21.109.193.in-addr.arpa.: domain name does not exist
[0] 147.21.109.193.in-addr.arpa.: domain name does not exist
[0] 148.21.109.193.in-addr.arpa.: domain name does not exist
[0] 149.21.109.193.in-addr.arpa.: domain name does not exist
[0] 150.21.109.193.in-addr.arpa.: domain name does not exist
[0] 151.21.109.193.in-addr.arpa.: domain name does not exist
[0] 152.21.109.193.in-addr.arpa.: domain name does not exist
[0] 153.21.109.193.in-addr.arpa.: domain name does not exist
[0] 154.21.109.193.in-addr.arpa.: domain name does not exist
[0] 155.21.109.193.in-addr.arpa.: domain name does not exist
[0] 156.21.109.193.in-addr.arpa.: domain name does not exist
[0] 157.21.109.193.in-addr.arpa.: domain name does not exist
[0] 158.21.109.193.in-addr.arpa.: domain name does not exist
[0] 159.21.109.193.in-addr.arpa.: domain name does not exist
[0] 160.21.109.193.in-addr.arpa.: domain name does not exist
[0] 161.21.109.193.in-addr.arpa.: domain name does not exist
[0] 162.21.109.193.in-addr.arpa.: domain name does not exist
[0] 163.21.109.193.in-addr.arpa.: domain name does not exist
[0] 164.21.109.193.in-addr.arpa.: domain name does not exist
[0] 165.21.109.193.in-addr.arpa.: domain name does not exist
[0] 166.21.109.193.in-addr.arpa.: domain name does not exist
[0] 167.21.109.193.in-addr.arpa.: domain name does not exist
[0] 168.21.109.193.in-addr.arpa.: domain name does not exist
[0] 169.21.109.193.in-addr.arpa.: domain name does not exist
[0] 170.21.109.193.in-addr.arpa.: domain name does not exist
[0] 171.21.109.193.in-addr.arpa.: domain name does not exist
[0] 172.21.109.193.in-addr.arpa.: domain name does not exist
[0] 173.21.109.193.in-addr.arpa.: domain name does not exist
[0] 174.21.109.193.in-addr.arpa.: domain name does not exist
[0] 175.21.109.193.in-addr.arpa.: domain name does not exist
[0] 176.21.109.193.in-addr.arpa.: domain name does not exist
[0] 177.21.109.193.in-addr.arpa.: domain name does not exist
[0] 178.21.109.193.in-addr.arpa.: domain name does not exist
[0] 179.21.109.193.in-addr.arpa.: domain name does not exist
[0] 180.21.109.193.in-addr.arpa.: domain name does not exist
[0] 181.21.109.193.in-addr.arpa.: domain name does not exist
[0] 182.21.109.193.in-addr.arpa.: domain name does not exist
[0] 183.21.109.193.in-addr.arpa.: domain name does not exist
[0] 184.21.109.193.in-addr.arpa.: domain name does not exist
[0] 185.21.109.193.in-addr.arpa.: domain name does not exist
[0] 186.21.109.193.in-addr.arpa.: domain name does not exist
[0] 187.21.109.193.in-addr.arpa.: domain name does not exist
[0] 188.21.109.193.in-addr.arpa.: domain name does not exist
[0] 189.21.109.193.in-addr.arpa.: domain name does not exist
[0] 190.21.109.193.in-addr.arpa.: domain name does not exist
[86400] 191.21.109.193.in-addr.arpa. domain name pointer modem-191.du.nh.is
[86400] 192.21.109.193.in-addr.arpa. domain name pointer modem-192.du.nh.is
[86400] 193.21.109.193.in-addr.arpa. domain name pointer modem-193.du.nh.is
[86400] 194.21.109.193.in-addr.arpa. domain name pointer modem-194.du.nh.is
[86400] 195.21.109.193.in-addr.arpa. domain name pointer modem-195.du.nh.is
[86400] 196.21.109.193.in-addr.arpa. domain name pointer modem-196.du.nh.is
[86400] 197.21.109.193.in-addr.arpa. domain name pointer modem-197.du.nh.is
[86400] 198.21.109.193.in-addr.arpa. domain name pointer modem-198.du.nh.is
[86400] 199.21.109.193.in-addr.arpa. domain name pointer modem-199.du.nh.is
[86400] 200.21.109.193.in-addr.arpa. domain name pointer modem-200.du.nh.is
[86400] 201.21.109.193.in-addr.arpa. domain name pointer modem-201.du.nh.is
[86400] 202.21.109.193.in-addr.arpa. domain name pointer modem-202.du.nh.is
[86400] 203.21.109.193.in-addr.arpa. domain name pointer modem-203.du.nh.is
[86400] 204.21.109.193.in-addr.arpa. domain name pointer modem-204.du.nh.is
[86400] 205.21.109.193.in-addr.arpa. domain name pointer modem-205.du.nh.is
[86400] 206.21.109.193.in-addr.arpa. domain name pointer modem-206.du.nh.is
[86400] 207.21.109.193.in-addr.arpa. domain name pointer modem-207.du.nh.is
[86400] 208.21.109.193.in-addr.arpa. domain name pointer modem-208.du.nh.is
[86400] 209.21.109.193.in-addr.arpa. domain name pointer modem-209.du.nh.is
[86400] 210.21.109.193.in-addr.arpa. domain name pointer modem-210.du.nh.is
[86400] 211.21.109.193.in-addr.arpa. domain name pointer modem-211.du.nh.is
[86400] 212.21.109.193.in-addr.arpa. domain name pointer modem-212.du.nh.is
[86400] 213.21.109.193.in-addr.arpa. domain name pointer modem-213.du.nh.is
[86400] 214.21.109.193.in-addr.arpa. domain name pointer modem-214.du.nh.is
[86400] 215.21.109.193.in-addr.arpa. domain name pointer modem-215.du.nh.is
[86400] 216.21.109.193.in-addr.arpa. domain name pointer modem-216.du.nh.is
[86400] 217.21.109.193.in-addr.arpa. domain name pointer modem-217.du.nh.is
[86400] 218.21.109.193.in-addr.arpa. domain name pointer modem-218.du.nh.is
[86400] 219.21.109.193.in-addr.arpa. domain name pointer modem-219.du.nh.is
[86400] 220.21.109.193.in-addr.arpa. domain name pointer modem-220.du.nh.is
[86400] 221.21.109.193.in-addr.arpa. domain name pointer modem-221.du.nh.is
[86400] 222.21.109.193.in-addr.arpa. domain name pointer modem-222.du.nh.is
[86400] 223.21.109.193.in-addr.arpa. domain name pointer modem-223.du.nh.is
[86400] 224.21.109.193.in-addr.arpa. domain name pointer modem-224.du.nh.is
[86400] 225.21.109.193.in-addr.arpa. domain name pointer isdn-225.du.nh.is
[86400] 226.21.109.193.in-addr.arpa. domain name pointer isdn-226.du.nh.is
[86400] 227.21.109.193.in-addr.arpa. domain name pointer isdn-227.du.nh.is
[86400] 228.21.109.193.in-addr.arpa. domain name pointer isdn-228.du.nh.is
[86400] 229.21.109.193.in-addr.arpa. domain name pointer isdn-229.du.nh.is
[86400] 230.21.109.193.in-addr.arpa. domain name pointer isdn-230.du.nh.is
[86400] 231.21.109.193.in-addr.arpa. domain name pointer isdn-231.du.nh.is
[86400] 232.21.109.193.in-addr.arpa. domain name pointer isdn-232.du.nh.is
[86400] 233.21.109.193.in-addr.arpa. domain name pointer isdn-233.du.nh.is
[86400] 234.21.109.193.in-addr.arpa. domain name pointer isdn-234.du.nh.is
[86400] 235.21.109.193.in-addr.arpa. domain name pointer isdn-235.du.nh.is
[86400] 236.21.109.193.in-addr.arpa. domain name pointer isdn-236.du.nh.is
[86400] 237.21.109.193.in-addr.arpa. domain name pointer isdn-237.du.nh.is
[86400] 238.21.109.193.in-addr.arpa. domain name pointer isdn-238.du.nh.is
[86400] 239.21.109.193.in-addr.arpa. domain name pointer isdn-239.du.nh.is
[86400] 240.21.109.193.in-addr.arpa. domain name pointer isdn-240.du.nh.is
[86400] 241.21.109.193.in-addr.arpa. domain name pointer isdn-241.du.nh.is
[86400] 242.21.109.193.in-addr.arpa. domain name pointer isdn-242.du.nh.is
[86400] 243.21.109.193.in-addr.arpa. domain name pointer isdn-243.du.nh.is
[86400] 244.21.109.193.in-addr.arpa. domain name pointer isdn-244.du.nh.is
[86400] 245.21.109.193.in-addr.arpa. domain name pointer isdn-245.du.nh.is
[86400] 246.21.109.193.in-addr.arpa. domain name pointer isdn-246.du.nh.is
[86400] 247.21.109.193.in-addr.arpa. domain name pointer isdn-247.du.nh.is
[86400] 248.21.109.193.in-addr.arpa. domain name pointer isdn-248.du.nh.is
[86400] 249.21.109.193.in-addr.arpa. domain name pointer isdn-249.du.nh.is
[86400] 250.21.109.193.in-addr.arpa. domain name pointer isdn-250.du.nh.is
[86400] 251.21.109.193.in-addr.arpa. domain name pointer isdn-251.du.nh.is
[86400] 252.21.109.193.in-addr.arpa. domain name pointer isdn-252.du.nh.is
[86400] 253.21.109.193.in-addr.arpa. domain name pointer isdn-253.du.nh.is
[86400] 254.21.109.193.in-addr.arpa. domain name pointer isdn-254.du.nh.is
[0] 255.21.109.193.in-addr.arpa.: domain name does not exist