[0] 0.172.231.131.in-addr.arpa.: domain name does not exist
[86400] 1.172.231.131.in-addr.arpa. domain name pointer router.frederick-st.hsrp.lut.ac.uk
[0] 2.172.231.131.in-addr.arpa.: domain name does not exist
[0] 3.172.231.131.in-addr.arpa.: domain name does not exist
[0] 4.172.231.131.in-addr.arpa.: domain name does not exist
[0] 5.172.231.131.in-addr.arpa.: domain name does not exist
[0] 6.172.231.131.in-addr.arpa.: domain name does not exist
[0] 7.172.231.131.in-addr.arpa.: domain name does not exist
[0] 8.172.231.131.in-addr.arpa.: domain name does not exist
[0] 9.172.231.131.in-addr.arpa.: domain name does not exist
[86400] 10.172.231.131.in-addr.arpa. domain name pointer frederick-st-card-reader-1.lut.ac.uk
[86400] 11.172.231.131.in-addr.arpa. domain name pointer frederick-st-card-reader-2.lut.ac.uk
[0] 12.172.231.131.in-addr.arpa.: domain name does not exist
[0] 13.172.231.131.in-addr.arpa.: domain name does not exist
[0] 14.172.231.131.in-addr.arpa.: domain name does not exist
[0] 15.172.231.131.in-addr.arpa.: domain name does not exist
[0] 16.172.231.131.in-addr.arpa.: domain name does not exist
[0] 17.172.231.131.in-addr.arpa.: domain name does not exist
[0] 18.172.231.131.in-addr.arpa.: domain name does not exist
[0] 19.172.231.131.in-addr.arpa.: domain name does not exist
[0] 20.172.231.131.in-addr.arpa.: domain name does not exist
[0] 21.172.231.131.in-addr.arpa.: domain name does not exist
[0] 22.172.231.131.in-addr.arpa.: domain name does not exist
[0] 23.172.231.131.in-addr.arpa.: domain name does not exist
[0] 24.172.231.131.in-addr.arpa.: domain name does not exist
[0] 25.172.231.131.in-addr.arpa.: domain name does not exist
[0] 26.172.231.131.in-addr.arpa.: domain name does not exist
[0] 27.172.231.131.in-addr.arpa.: domain name does not exist
[0] 28.172.231.131.in-addr.arpa.: domain name does not exist
[0] 29.172.231.131.in-addr.arpa.: domain name does not exist
[86400] 30.172.231.131.in-addr.arpa. domain name pointer frederick-st-30.lut.ac.uk
[86400] 31.172.231.131.in-addr.arpa. domain name pointer frederick-st-31.lut.ac.uk
[86400] 32.172.231.131.in-addr.arpa. domain name pointer frederick-st-32.lut.ac.uk
[86400] 33.172.231.131.in-addr.arpa. domain name pointer frederick-st-33.lut.ac.uk
[86400] 34.172.231.131.in-addr.arpa. domain name pointer frederick-st-34.lut.ac.uk
[86400] 35.172.231.131.in-addr.arpa. domain name pointer frederick-st-35.lut.ac.uk
[86400] 36.172.231.131.in-addr.arpa. domain name pointer frederick-st-36.lut.ac.uk
[86400] 37.172.231.131.in-addr.arpa. domain name pointer frederick-st-37.lut.ac.uk
[86400] 38.172.231.131.in-addr.arpa. domain name pointer frederick-st-38.lut.ac.uk
[86400] 39.172.231.131.in-addr.arpa. domain name pointer frederick-st-39.lut.ac.uk
[86400] 40.172.231.131.in-addr.arpa. domain name pointer frederick-st-40.lut.ac.uk
[86400] 41.172.231.131.in-addr.arpa. domain name pointer frederick-st-41.lut.ac.uk
[86400] 42.172.231.131.in-addr.arpa. domain name pointer frederick-st-42.lut.ac.uk
[86400] 43.172.231.131.in-addr.arpa. domain name pointer frederick-st-43.lut.ac.uk
[86400] 44.172.231.131.in-addr.arpa. domain name pointer frederick-st-44.lut.ac.uk
[86400] 45.172.231.131.in-addr.arpa. domain name pointer frederick-st-45.lut.ac.uk
[86400] 46.172.231.131.in-addr.arpa. domain name pointer frederick-st-46.lut.ac.uk
[86400] 47.172.231.131.in-addr.arpa. domain name pointer frederick-st-47.lut.ac.uk
[86400] 48.172.231.131.in-addr.arpa. domain name pointer frederick-st-48.lut.ac.uk
[86400] 49.172.231.131.in-addr.arpa. domain name pointer frederick-st-49.lut.ac.uk
[86400] 50.172.231.131.in-addr.arpa. domain name pointer frederick-st-50.lut.ac.uk
[86400] 51.172.231.131.in-addr.arpa. domain name pointer frederick-st-51.lut.ac.uk
[86400] 52.172.231.131.in-addr.arpa. domain name pointer frederick-st-52.lut.ac.uk
[86400] 53.172.231.131.in-addr.arpa. domain name pointer frederick-st-53.lut.ac.uk
[86400] 54.172.231.131.in-addr.arpa. domain name pointer frederick-st-54.lut.ac.uk
[86400] 55.172.231.131.in-addr.arpa. domain name pointer frederick-st-55.lut.ac.uk
[86400] 56.172.231.131.in-addr.arpa. domain name pointer frederick-st-56.lut.ac.uk
[86400] 57.172.231.131.in-addr.arpa. domain name pointer frederick-st-57.lut.ac.uk
[86400] 58.172.231.131.in-addr.arpa. domain name pointer frederick-st-58.lut.ac.uk
[86400] 59.172.231.131.in-addr.arpa. domain name pointer frederick-st-59.lut.ac.uk
[86400] 60.172.231.131.in-addr.arpa. domain name pointer frederick-st-60.lut.ac.uk
[86400] 61.172.231.131.in-addr.arpa. domain name pointer frederick-st-61.lut.ac.uk
[86400] 62.172.231.131.in-addr.arpa. domain name pointer frederick-st-62.lut.ac.uk
[86400] 63.172.231.131.in-addr.arpa. domain name pointer frederick-st-63.lut.ac.uk
[86400] 64.172.231.131.in-addr.arpa. domain name pointer frederick-st-64.lut.ac.uk
[86400] 65.172.231.131.in-addr.arpa. domain name pointer frederick-st-65.lut.ac.uk
[86400] 66.172.231.131.in-addr.arpa. domain name pointer frederick-st-66.lut.ac.uk
[86400] 67.172.231.131.in-addr.arpa. domain name pointer frederick-st-67.lut.ac.uk
[86400] 68.172.231.131.in-addr.arpa. domain name pointer frederick-st-68.lut.ac.uk
[86400] 69.172.231.131.in-addr.arpa. domain name pointer frederick-st-69.lut.ac.uk
[86400] 70.172.231.131.in-addr.arpa. domain name pointer frederick-st-70.lut.ac.uk
[86400] 71.172.231.131.in-addr.arpa. domain name pointer frederick-st-71.lut.ac.uk
[86400] 72.172.231.131.in-addr.arpa. domain name pointer frederick-st-72.lut.ac.uk
[86400] 73.172.231.131.in-addr.arpa. domain name pointer frederick-st-73.lut.ac.uk
[86400] 74.172.231.131.in-addr.arpa. domain name pointer frederick-st-74.lut.ac.uk
[86400] 75.172.231.131.in-addr.arpa. domain name pointer frederick-st-75.lut.ac.uk
[86400] 76.172.231.131.in-addr.arpa. domain name pointer frederick-st-76.lut.ac.uk
[86400] 77.172.231.131.in-addr.arpa. domain name pointer frederick-st-77.lut.ac.uk
[86400] 78.172.231.131.in-addr.arpa. domain name pointer frederick-st-78.lut.ac.uk
[86400] 79.172.231.131.in-addr.arpa. domain name pointer frederick-st-79.lut.ac.uk
[86400] 80.172.231.131.in-addr.arpa. domain name pointer frederick-st-80.lut.ac.uk
[86400] 81.172.231.131.in-addr.arpa. domain name pointer frederick-st-81.lut.ac.uk
[86400] 82.172.231.131.in-addr.arpa. domain name pointer frederick-st-82.lut.ac.uk
[86400] 83.172.231.131.in-addr.arpa. domain name pointer frederick-st-83.lut.ac.uk
[86400] 84.172.231.131.in-addr.arpa. domain name pointer frederick-st-84.lut.ac.uk
[86400] 85.172.231.131.in-addr.arpa. domain name pointer frederick-st-85.lut.ac.uk
[86400] 86.172.231.131.in-addr.arpa. domain name pointer frederick-st-86.lut.ac.uk
[86400] 87.172.231.131.in-addr.arpa. domain name pointer frederick-st-87.lut.ac.uk
[86400] 88.172.231.131.in-addr.arpa. domain name pointer frederick-st-88.lut.ac.uk
[86400] 89.172.231.131.in-addr.arpa. domain name pointer frederick-st-89.lut.ac.uk
[86400] 90.172.231.131.in-addr.arpa. domain name pointer frederick-st-90.lut.ac.uk
[86400] 91.172.231.131.in-addr.arpa. domain name pointer frederick-st-91.lut.ac.uk
[86400] 92.172.231.131.in-addr.arpa. domain name pointer frederick-st-92.lut.ac.uk
[86400] 93.172.231.131.in-addr.arpa. domain name pointer frederick-st-93.lut.ac.uk
[86400] 94.172.231.131.in-addr.arpa. domain name pointer frederick-st-94.lut.ac.uk
[86400] 95.172.231.131.in-addr.arpa. domain name pointer frederick-st-95.lut.ac.uk
[86400] 96.172.231.131.in-addr.arpa. domain name pointer frederick-st-96.lut.ac.uk
[86400] 97.172.231.131.in-addr.arpa. domain name pointer frederick-st-97.lut.ac.uk
[86400] 98.172.231.131.in-addr.arpa. domain name pointer frederick-st-98.lut.ac.uk
[86400] 99.172.231.131.in-addr.arpa. domain name pointer frederick-st-99.lut.ac.uk
[86400] 100.172.231.131.in-addr.arpa. domain name pointer frederick-st-100.lut.ac.uk
[86400] 101.172.231.131.in-addr.arpa. domain name pointer frederick-st-101.lut.ac.uk
[86400] 102.172.231.131.in-addr.arpa. domain name pointer frederick-st-102.lut.ac.uk
[86400] 103.172.231.131.in-addr.arpa. domain name pointer frederick-st-103.lut.ac.uk
[86400] 104.172.231.131.in-addr.arpa. domain name pointer frederick-st-104.lut.ac.uk
[86400] 105.172.231.131.in-addr.arpa. domain name pointer frederick-st-105.lut.ac.uk
[86400] 106.172.231.131.in-addr.arpa. domain name pointer frederick-st-106.lut.ac.uk
[86400] 107.172.231.131.in-addr.arpa. domain name pointer frederick-st-107.lut.ac.uk
[86400] 108.172.231.131.in-addr.arpa. domain name pointer frederick-st-108.lut.ac.uk
[86400] 109.172.231.131.in-addr.arpa. domain name pointer frederick-st-109.lut.ac.uk
[86400] 110.172.231.131.in-addr.arpa. domain name pointer frederick-st-110.lut.ac.uk
[86400] 111.172.231.131.in-addr.arpa. domain name pointer frederick-st-111.lut.ac.uk
[86400] 112.172.231.131.in-addr.arpa. domain name pointer frederick-st-112.lut.ac.uk
[86400] 113.172.231.131.in-addr.arpa. domain name pointer frederick-st-113.lut.ac.uk
[86400] 114.172.231.131.in-addr.arpa. domain name pointer frederick-st-114.lut.ac.uk
[86400] 115.172.231.131.in-addr.arpa. domain name pointer frederick-st-115.lut.ac.uk
[86400] 116.172.231.131.in-addr.arpa. domain name pointer frederick-st-116.lut.ac.uk
[86400] 117.172.231.131.in-addr.arpa. domain name pointer frederick-st-117.lut.ac.uk
[86400] 118.172.231.131.in-addr.arpa. domain name pointer frederick-st-118.lut.ac.uk
[86400] 119.172.231.131.in-addr.arpa. domain name pointer frederick-st-119.lut.ac.uk
[86400] 120.172.231.131.in-addr.arpa. domain name pointer frederick-st-120.lut.ac.uk
[86400] 121.172.231.131.in-addr.arpa. domain name pointer frederick-st-121.lut.ac.uk
[86400] 122.172.231.131.in-addr.arpa. domain name pointer frederick-st-122.lut.ac.uk
[86400] 123.172.231.131.in-addr.arpa. domain name pointer frederick-st-123.lut.ac.uk
[86400] 124.172.231.131.in-addr.arpa. domain name pointer frederick-st-124.lut.ac.uk
[86400] 125.172.231.131.in-addr.arpa. domain name pointer frederick-st-125.lut.ac.uk
[86400] 126.172.231.131.in-addr.arpa. domain name pointer frederick-st-126.lut.ac.uk
[86400] 127.172.231.131.in-addr.arpa. domain name pointer frederick-st-127.lut.ac.uk
[86400] 128.172.231.131.in-addr.arpa. domain name pointer frederick-st-128.lut.ac.uk
[86400] 129.172.231.131.in-addr.arpa. domain name pointer frederick-st-129.lut.ac.uk
[86400] 130.172.231.131.in-addr.arpa. domain name pointer frederick-st-130.lut.ac.uk
[86400] 131.172.231.131.in-addr.arpa. domain name pointer frederick-st-131.lut.ac.uk
[86400] 132.172.231.131.in-addr.arpa. domain name pointer frederick-st-132.lut.ac.uk
[86400] 133.172.231.131.in-addr.arpa. domain name pointer frederick-st-133.lut.ac.uk
[86400] 134.172.231.131.in-addr.arpa. domain name pointer frederick-st-134.lut.ac.uk
[86400] 135.172.231.131.in-addr.arpa. domain name pointer frederick-st-135.lut.ac.uk
[86400] 136.172.231.131.in-addr.arpa. domain name pointer frederick-st-136.lut.ac.uk
[86400] 137.172.231.131.in-addr.arpa. domain name pointer frederick-st-137.lut.ac.uk
[86400] 138.172.231.131.in-addr.arpa. domain name pointer frederick-st-138.lut.ac.uk
[86400] 139.172.231.131.in-addr.arpa. domain name pointer frederick-st-139.lut.ac.uk
[86400] 140.172.231.131.in-addr.arpa. domain name pointer frederick-st-140.lut.ac.uk
[86400] 141.172.231.131.in-addr.arpa. domain name pointer frederick-st-141.lut.ac.uk
[86400] 142.172.231.131.in-addr.arpa. domain name pointer frederick-st-142.lut.ac.uk
[86400] 143.172.231.131.in-addr.arpa. domain name pointer frederick-st-143.lut.ac.uk
[86400] 144.172.231.131.in-addr.arpa. domain name pointer frederick-st-144.lut.ac.uk
[86400] 145.172.231.131.in-addr.arpa. domain name pointer frederick-st-145.lut.ac.uk
[86400] 146.172.231.131.in-addr.arpa. domain name pointer frederick-st-146.lut.ac.uk
[86400] 147.172.231.131.in-addr.arpa. domain name pointer frederick-st-147.lut.ac.uk
[86400] 148.172.231.131.in-addr.arpa. domain name pointer frederick-st-148.lut.ac.uk
[86400] 149.172.231.131.in-addr.arpa. domain name pointer frederick-st-149.lut.ac.uk
[86400] 150.172.231.131.in-addr.arpa. domain name pointer frederick-st-150.lut.ac.uk
[86400] 151.172.231.131.in-addr.arpa. domain name pointer frederick-st-151.lut.ac.uk
[86400] 152.172.231.131.in-addr.arpa. domain name pointer frederick-st-152.lut.ac.uk
[86400] 153.172.231.131.in-addr.arpa. domain name pointer frederick-st-153.lut.ac.uk
[86400] 154.172.231.131.in-addr.arpa. domain name pointer frederick-st-154.lut.ac.uk
[86400] 155.172.231.131.in-addr.arpa. domain name pointer frederick-st-155.lut.ac.uk
[86400] 156.172.231.131.in-addr.arpa. domain name pointer frederick-st-156.lut.ac.uk
[86400] 157.172.231.131.in-addr.arpa. domain name pointer frederick-st-157.lut.ac.uk
[86400] 158.172.231.131.in-addr.arpa. domain name pointer frederick-st-158.lut.ac.uk
[86400] 159.172.231.131.in-addr.arpa. domain name pointer frederick-st-159.lut.ac.uk
[86400] 160.172.231.131.in-addr.arpa. domain name pointer frederick-st-160.lut.ac.uk
[86400] 161.172.231.131.in-addr.arpa. domain name pointer frederick-st-161.lut.ac.uk
[86400] 162.172.231.131.in-addr.arpa. domain name pointer frederick-st-162.lut.ac.uk
[86400] 163.172.231.131.in-addr.arpa. domain name pointer frederick-st-163.lut.ac.uk
[86400] 164.172.231.131.in-addr.arpa. domain name pointer frederick-st-164.lut.ac.uk
[86400] 165.172.231.131.in-addr.arpa. domain name pointer frederick-st-165.lut.ac.uk
[86400] 166.172.231.131.in-addr.arpa. domain name pointer frederick-st-166.lut.ac.uk
[86400] 167.172.231.131.in-addr.arpa. domain name pointer frederick-st-167.lut.ac.uk
[86400] 168.172.231.131.in-addr.arpa. domain name pointer frederick-st-168.lut.ac.uk
[86400] 169.172.231.131.in-addr.arpa. domain name pointer frederick-st-169.lut.ac.uk
[86400] 170.172.231.131.in-addr.arpa. domain name pointer frederick-st-170.lut.ac.uk
[86400] 171.172.231.131.in-addr.arpa. domain name pointer frederick-st-171.lut.ac.uk
[86400] 172.172.231.131.in-addr.arpa. domain name pointer frederick-st-172.lut.ac.uk
[86400] 173.172.231.131.in-addr.arpa. domain name pointer frederick-st-173.lut.ac.uk
[86400] 174.172.231.131.in-addr.arpa. domain name pointer frederick-st-174.lut.ac.uk
[86400] 175.172.231.131.in-addr.arpa. domain name pointer frederick-st-175.lut.ac.uk
[86400] 176.172.231.131.in-addr.arpa. domain name pointer frederick-st-176.lut.ac.uk
[86400] 177.172.231.131.in-addr.arpa. domain name pointer frederick-st-177.lut.ac.uk
[86400] 178.172.231.131.in-addr.arpa. domain name pointer frederick-st-178.lut.ac.uk
[86400] 179.172.231.131.in-addr.arpa. domain name pointer frederick-st-179.lut.ac.uk
[86400] 180.172.231.131.in-addr.arpa. domain name pointer frederick-st-180.lut.ac.uk
[86400] 181.172.231.131.in-addr.arpa. domain name pointer frederick-st-181.lut.ac.uk
[86400] 182.172.231.131.in-addr.arpa. domain name pointer frederick-st-182.lut.ac.uk
[86400] 183.172.231.131.in-addr.arpa. domain name pointer frederick-st-183.lut.ac.uk
[86400] 184.172.231.131.in-addr.arpa. domain name pointer frederick-st-184.lut.ac.uk
[86400] 185.172.231.131.in-addr.arpa. domain name pointer frederick-st-185.lut.ac.uk
[86400] 186.172.231.131.in-addr.arpa. domain name pointer frederick-st-186.lut.ac.uk
[86400] 187.172.231.131.in-addr.arpa. domain name pointer frederick-st-187.lut.ac.uk
[86400] 188.172.231.131.in-addr.arpa. domain name pointer frederick-st-188.lut.ac.uk
[86400] 189.172.231.131.in-addr.arpa. domain name pointer frederick-st-189.lut.ac.uk
[86400] 190.172.231.131.in-addr.arpa. domain name pointer frederick-st-190.lut.ac.uk
[86400] 191.172.231.131.in-addr.arpa. domain name pointer frederick-st-191.lut.ac.uk
[86400] 192.172.231.131.in-addr.arpa. domain name pointer frederick-st-192.lut.ac.uk
[86400] 193.172.231.131.in-addr.arpa. domain name pointer frederick-st-193.lut.ac.uk
[86400] 194.172.231.131.in-addr.arpa. domain name pointer frederick-st-194.lut.ac.uk
[86400] 195.172.231.131.in-addr.arpa. domain name pointer frederick-st-195.lut.ac.uk
[86400] 196.172.231.131.in-addr.arpa. domain name pointer frederick-st-196.lut.ac.uk
[86400] 197.172.231.131.in-addr.arpa. domain name pointer frederick-st-197.lut.ac.uk
[86400] 198.172.231.131.in-addr.arpa. domain name pointer frederick-st-198.lut.ac.uk
[86400] 199.172.231.131.in-addr.arpa. domain name pointer frederick-st-199.lut.ac.uk
[86400] 200.172.231.131.in-addr.arpa. domain name pointer frederick-st-200.lut.ac.uk
[0] 201.172.231.131.in-addr.arpa.: domain name does not exist
[0] 202.172.231.131.in-addr.arpa.: domain name does not exist
[0] 203.172.231.131.in-addr.arpa.: domain name does not exist
[0] 204.172.231.131.in-addr.arpa.: domain name does not exist
[0] 205.172.231.131.in-addr.arpa.: domain name does not exist
[0] 206.172.231.131.in-addr.arpa.: domain name does not exist
[0] 207.172.231.131.in-addr.arpa.: domain name does not exist
[0] 208.172.231.131.in-addr.arpa.: domain name does not exist
[0] 209.172.231.131.in-addr.arpa.: domain name does not exist
[0] 210.172.231.131.in-addr.arpa.: domain name does not exist
[0] 211.172.231.131.in-addr.arpa.: domain name does not exist
[0] 212.172.231.131.in-addr.arpa.: domain name does not exist
[0] 213.172.231.131.in-addr.arpa.: domain name does not exist
[0] 214.172.231.131.in-addr.arpa.: domain name does not exist
[0] 215.172.231.131.in-addr.arpa.: domain name does not exist
[0] 216.172.231.131.in-addr.arpa.: domain name does not exist
[0] 217.172.231.131.in-addr.arpa.: domain name does not exist
[0] 218.172.231.131.in-addr.arpa.: domain name does not exist
[0] 219.172.231.131.in-addr.arpa.: domain name does not exist
[0] 220.172.231.131.in-addr.arpa.: domain name does not exist
[0] 221.172.231.131.in-addr.arpa.: domain name does not exist
[0] 222.172.231.131.in-addr.arpa.: domain name does not exist
[0] 223.172.231.131.in-addr.arpa.: domain name does not exist
[0] 224.172.231.131.in-addr.arpa.: domain name does not exist
[0] 225.172.231.131.in-addr.arpa.: domain name does not exist
[0] 226.172.231.131.in-addr.arpa.: domain name does not exist
[0] 227.172.231.131.in-addr.arpa.: domain name does not exist
[0] 228.172.231.131.in-addr.arpa.: domain name does not exist
[0] 229.172.231.131.in-addr.arpa.: domain name does not exist
[0] 230.172.231.131.in-addr.arpa.: domain name does not exist
[0] 231.172.231.131.in-addr.arpa.: domain name does not exist
[0] 232.172.231.131.in-addr.arpa.: domain name does not exist
[0] 233.172.231.131.in-addr.arpa.: domain name does not exist
[0] 234.172.231.131.in-addr.arpa.: domain name does not exist
[0] 235.172.231.131.in-addr.arpa.: domain name does not exist
[0] 236.172.231.131.in-addr.arpa.: domain name does not exist
[0] 237.172.231.131.in-addr.arpa.: domain name does not exist
[0] 238.172.231.131.in-addr.arpa.: domain name does not exist
[0] 239.172.231.131.in-addr.arpa.: domain name does not exist
[0] 240.172.231.131.in-addr.arpa.: domain name does not exist
[0] 241.172.231.131.in-addr.arpa.: domain name does not exist
[0] 242.172.231.131.in-addr.arpa.: domain name does not exist
[0] 243.172.231.131.in-addr.arpa.: domain name does not exist
[0] 244.172.231.131.in-addr.arpa.: domain name does not exist
[0] 245.172.231.131.in-addr.arpa.: domain name does not exist
[0] 246.172.231.131.in-addr.arpa.: domain name does not exist
[0] 247.172.231.131.in-addr.arpa.: domain name does not exist
[0] 248.172.231.131.in-addr.arpa.: domain name does not exist
[0] 249.172.231.131.in-addr.arpa.: domain name does not exist
[0] 250.172.231.131.in-addr.arpa.: domain name does not exist
[0] 251.172.231.131.in-addr.arpa.: domain name does not exist
[0] 252.172.231.131.in-addr.arpa.: domain name does not exist
[86400] 253.172.231.131.in-addr.arpa. domain name pointer secondary-router.frederick-st.hsrp.lut.ac.uk
[86400] 254.172.231.131.in-addr.arpa. domain name pointer primary-router.frederick-st.hsrp.lut.ac.uk
[0] 255.172.231.131.in-addr.arpa.: domain name does not exist