[0] 0.80.103.128.in-addr.arpa.: domain name does not exist
[10800] 1.80.103.128.in-addr.arpa. domain name pointer sph80-1.harvard.edu
[0] 2.80.103.128.in-addr.arpa.: domain name does not exist
[10800] 3.80.103.128.in-addr.arpa. domain name pointer sph80-1633-1.harvard.edu
[0] 4.80.103.128.in-addr.arpa.: domain name does not exist
[10800] 5.80.103.128.in-addr.arpa. domain name pointer sph80-5.harvard.edu
[10800] 6.80.103.128.in-addr.arpa. domain name pointer sph80-6.harvard.edu
[10800] 7.80.103.128.in-addr.arpa. domain name pointer sph80-7.harvard.edu
[10800] 8.80.103.128.in-addr.arpa. domain name pointer sph80-8.harvard.edu
[10800] 9.80.103.128.in-addr.arpa. domain name pointer sph80-9.harvard.edu
[10800] 10.80.103.128.in-addr.arpa. domain name pointer sph80-10.harvard.edu
[10800] 11.80.103.128.in-addr.arpa. domain name pointer sph80-11.harvard.edu
[10800] 12.80.103.128.in-addr.arpa. domain name pointer sph80-12.harvard.edu
[10800] 13.80.103.128.in-addr.arpa. domain name pointer sph80-13.harvard.edu
[10800] 14.80.103.128.in-addr.arpa. domain name pointer sph80-14.harvard.edu
[10800] 15.80.103.128.in-addr.arpa. domain name pointer sph80-15.harvard.edu
[10800] 16.80.103.128.in-addr.arpa. domain name pointer sph80-16.harvard.edu
[10800] 17.80.103.128.in-addr.arpa. domain name pointer sph80-17.harvard.edu
[10800] 18.80.103.128.in-addr.arpa. domain name pointer sph80-18.harvard.edu
[10800] 19.80.103.128.in-addr.arpa. domain name pointer sph80-19.harvard.edu
[10800] 20.80.103.128.in-addr.arpa. domain name pointer sph80-20.harvard.edu
[10800] 21.80.103.128.in-addr.arpa. domain name pointer sph80-21.harvard.edu
[10800] 22.80.103.128.in-addr.arpa. domain name pointer sph80-22.harvard.edu
[10800] 23.80.103.128.in-addr.arpa. domain name pointer sph80-23.harvard.edu
[10800] 24.80.103.128.in-addr.arpa. domain name pointer sph80-24.harvard.edu
[10800] 25.80.103.128.in-addr.arpa. domain name pointer sph80-25.harvard.edu
[10800] 26.80.103.128.in-addr.arpa. domain name pointer sph80-26.harvard.edu
[10800] 27.80.103.128.in-addr.arpa. domain name pointer sph80-27.harvard.edu
[10800] 28.80.103.128.in-addr.arpa. domain name pointer sph80-28.harvard.edu
[10800] 29.80.103.128.in-addr.arpa. domain name pointer sph80-29.harvard.edu
[10800] 30.80.103.128.in-addr.arpa. domain name pointer sph80-30.harvard.edu
[10800] 31.80.103.128.in-addr.arpa. domain name pointer sph80-31.harvard.edu
[10800] 32.80.103.128.in-addr.arpa. domain name pointer sph80-32.harvard.edu
[10800] 33.80.103.128.in-addr.arpa. domain name pointer sph80-33.harvard.edu
[10800] 34.80.103.128.in-addr.arpa. domain name pointer sph80-34.harvard.edu
[10800] 35.80.103.128.in-addr.arpa. domain name pointer sph80-35.harvard.edu
[10800] 36.80.103.128.in-addr.arpa. domain name pointer sph80-36.harvard.edu
[10800] 37.80.103.128.in-addr.arpa. domain name pointer sph80-37.harvard.edu
[10800] 38.80.103.128.in-addr.arpa. domain name pointer sph80-38.harvard.edu
[10800] 39.80.103.128.in-addr.arpa. domain name pointer sph80-39.harvard.edu
[10800] 40.80.103.128.in-addr.arpa. domain name pointer sph80-40.harvard.edu
[10800] 41.80.103.128.in-addr.arpa. domain name pointer sph80-41.harvard.edu
[10800] 42.80.103.128.in-addr.arpa. domain name pointer sph80-42.harvard.edu
[10800] 43.80.103.128.in-addr.arpa. domain name pointer sph80-43.harvard.edu
[10800] 44.80.103.128.in-addr.arpa. domain name pointer sph80-44.harvard.edu
[10800] 45.80.103.128.in-addr.arpa. domain name pointer sph80-45.harvard.edu
[10800] 46.80.103.128.in-addr.arpa. domain name pointer sph80-46.harvard.edu
[10800] 47.80.103.128.in-addr.arpa. domain name pointer sph80-47.harvard.edu
[10800] 48.80.103.128.in-addr.arpa. domain name pointer sph80-48.harvard.edu
[10800] 49.80.103.128.in-addr.arpa. domain name pointer sph80-49.harvard.edu
[10800] 50.80.103.128.in-addr.arpa. domain name pointer sph80-50.harvard.edu
[10800] 51.80.103.128.in-addr.arpa. domain name pointer sph80-51.harvard.edu
[10800] 52.80.103.128.in-addr.arpa. domain name pointer sph80-52.harvard.edu
[10800] 53.80.103.128.in-addr.arpa. domain name pointer sph80-53.harvard.edu
[10800] 54.80.103.128.in-addr.arpa. domain name pointer sph80-54.harvard.edu
[10800] 55.80.103.128.in-addr.arpa. domain name pointer sph80-55.harvard.edu
[10800] 56.80.103.128.in-addr.arpa. domain name pointer sph80-56.harvard.edu
[10800] 57.80.103.128.in-addr.arpa. domain name pointer sph80-57.harvard.edu
[10800] 58.80.103.128.in-addr.arpa. domain name pointer sph80-58.harvard.edu
[10800] 59.80.103.128.in-addr.arpa. domain name pointer sph80-59.harvard.edu
[10800] 60.80.103.128.in-addr.arpa. domain name pointer sph80-60.harvard.edu
[10800] 61.80.103.128.in-addr.arpa. domain name pointer sph80-61.harvard.edu
[10800] 62.80.103.128.in-addr.arpa. domain name pointer sph80-62.harvard.edu
[10800] 63.80.103.128.in-addr.arpa. domain name pointer sph80-63.harvard.edu
[10800] 64.80.103.128.in-addr.arpa. domain name pointer sph80-64.harvard.edu
[10800] 65.80.103.128.in-addr.arpa. domain name pointer sph80-65.harvard.edu
[10800] 66.80.103.128.in-addr.arpa. domain name pointer sph80-66.harvard.edu
[10800] 67.80.103.128.in-addr.arpa. domain name pointer sph80-67.harvard.edu
[10800] 68.80.103.128.in-addr.arpa. domain name pointer sph80-68.harvard.edu
[10800] 69.80.103.128.in-addr.arpa. domain name pointer sph80-69.harvard.edu
[10800] 70.80.103.128.in-addr.arpa. domain name pointer sph80-70.harvard.edu
[10800] 71.80.103.128.in-addr.arpa. domain name pointer sph80-71.harvard.edu
[10800] 72.80.103.128.in-addr.arpa. domain name pointer sph80-72.harvard.edu
[10800] 73.80.103.128.in-addr.arpa. domain name pointer sph80-73.harvard.edu
[10800] 74.80.103.128.in-addr.arpa. domain name pointer sph80-74.harvard.edu
[10800] 75.80.103.128.in-addr.arpa. domain name pointer sph80-75.harvard.edu
[10800] 76.80.103.128.in-addr.arpa. domain name pointer sph80-76.harvard.edu
[10800] 77.80.103.128.in-addr.arpa. domain name pointer sph80-77.harvard.edu
[10800] 78.80.103.128.in-addr.arpa. domain name pointer sph80-78.harvard.edu
[10800] 79.80.103.128.in-addr.arpa. domain name pointer sph80-79.harvard.edu
[10800] 80.80.103.128.in-addr.arpa. domain name pointer sph80-80.harvard.edu
[10800] 81.80.103.128.in-addr.arpa. domain name pointer sph80-81.harvard.edu
[10800] 82.80.103.128.in-addr.arpa. domain name pointer sph80-82.harvard.edu
[10800] 83.80.103.128.in-addr.arpa. domain name pointer sph80-83.harvard.edu
[10800] 84.80.103.128.in-addr.arpa. domain name pointer sph80-84.harvard.edu
[10800] 85.80.103.128.in-addr.arpa. domain name pointer sph80-85.harvard.edu
[10800] 86.80.103.128.in-addr.arpa. domain name pointer sph80-86.harvard.edu
[10800] 87.80.103.128.in-addr.arpa. domain name pointer sph80-87.harvard.edu
[10800] 88.80.103.128.in-addr.arpa. domain name pointer sph80-88.harvard.edu
[10800] 89.80.103.128.in-addr.arpa. domain name pointer sph80-89.harvard.edu
[10800] 90.80.103.128.in-addr.arpa. domain name pointer sph80-90.harvard.edu
[10800] 91.80.103.128.in-addr.arpa. domain name pointer sph80-91.harvard.edu
[10800] 92.80.103.128.in-addr.arpa. domain name pointer sph80-92.harvard.edu
[10800] 93.80.103.128.in-addr.arpa. domain name pointer sph80-93.harvard.edu
[10800] 94.80.103.128.in-addr.arpa. domain name pointer sph80-94.harvard.edu
[10800] 95.80.103.128.in-addr.arpa. domain name pointer sph80-95.harvard.edu
[10800] 96.80.103.128.in-addr.arpa. domain name pointer sph80-96.harvard.edu
[10800] 97.80.103.128.in-addr.arpa. domain name pointer sph80-97.harvard.edu
[10800] 98.80.103.128.in-addr.arpa. domain name pointer sph80-98.harvard.edu
[10800] 99.80.103.128.in-addr.arpa. domain name pointer sph80-99.harvard.edu
[10800] 100.80.103.128.in-addr.arpa. domain name pointer sph80-100.harvard.edu
[10800] 101.80.103.128.in-addr.arpa. domain name pointer sph80-101.harvard.edu
[10800] 102.80.103.128.in-addr.arpa. domain name pointer sph80-102.harvard.edu
[10800] 103.80.103.128.in-addr.arpa. domain name pointer sph80-103.harvard.edu
[10800] 104.80.103.128.in-addr.arpa. domain name pointer sph80-104.harvard.edu
[10800] 105.80.103.128.in-addr.arpa. domain name pointer sph80-105.harvard.edu
[10800] 106.80.103.128.in-addr.arpa. domain name pointer sph80-106.harvard.edu
[10800] 107.80.103.128.in-addr.arpa. domain name pointer sph80-107.harvard.edu
[10800] 108.80.103.128.in-addr.arpa. domain name pointer sph80-108.harvard.edu
[10800] 109.80.103.128.in-addr.arpa. domain name pointer sph80-109.harvard.edu
[10800] 110.80.103.128.in-addr.arpa. domain name pointer sph80-110.harvard.edu
[10800] 111.80.103.128.in-addr.arpa. domain name pointer sph80-111.harvard.edu
[10800] 112.80.103.128.in-addr.arpa. domain name pointer sph80-112.harvard.edu
[10800] 113.80.103.128.in-addr.arpa. domain name pointer sph80-113.harvard.edu
[10800] 114.80.103.128.in-addr.arpa. domain name pointer sph80-114.harvard.edu
[10800] 115.80.103.128.in-addr.arpa. domain name pointer sph80-115.harvard.edu
[10800] 116.80.103.128.in-addr.arpa. domain name pointer sph80-116.harvard.edu
[10800] 117.80.103.128.in-addr.arpa. domain name pointer sph80-117.harvard.edu
[10800] 118.80.103.128.in-addr.arpa. domain name pointer sph80-118.harvard.edu
[10800] 119.80.103.128.in-addr.arpa. domain name pointer sph80-119.harvard.edu
[10800] 120.80.103.128.in-addr.arpa. domain name pointer sph80-120.harvard.edu
[10800] 121.80.103.128.in-addr.arpa. domain name pointer sph80-121.harvard.edu
[10800] 122.80.103.128.in-addr.arpa. domain name pointer sph80-122.harvard.edu
[10800] 123.80.103.128.in-addr.arpa. domain name pointer sph80-123.harvard.edu
[10800] 124.80.103.128.in-addr.arpa. domain name pointer sph80-124.harvard.edu
[10800] 125.80.103.128.in-addr.arpa. domain name pointer sph80-125.harvard.edu
[10800] 126.80.103.128.in-addr.arpa. domain name pointer sph80-126.harvard.edu
[10800] 127.80.103.128.in-addr.arpa. domain name pointer sph80-127.harvard.edu
[10800] 128.80.103.128.in-addr.arpa. domain name pointer sph80-128.harvard.edu
[10800] 129.80.103.128.in-addr.arpa. domain name pointer sph80-129.harvard.edu
[10800] 130.80.103.128.in-addr.arpa. domain name pointer sph80-130.harvard.edu
[10800] 131.80.103.128.in-addr.arpa. domain name pointer sph80-131.harvard.edu
[10800] 132.80.103.128.in-addr.arpa. domain name pointer sph80-132.harvard.edu
[10800] 133.80.103.128.in-addr.arpa. domain name pointer sph80-133.harvard.edu
[10800] 134.80.103.128.in-addr.arpa. domain name pointer sph80-134.harvard.edu
[10800] 135.80.103.128.in-addr.arpa. domain name pointer sph80-135.harvard.edu
[10800] 136.80.103.128.in-addr.arpa. domain name pointer sph80-136.harvard.edu
[10800] 137.80.103.128.in-addr.arpa. domain name pointer sph80-137.harvard.edu
[10800] 138.80.103.128.in-addr.arpa. domain name pointer sph80-138.harvard.edu
[10800] 139.80.103.128.in-addr.arpa. domain name pointer sph80-139.harvard.edu
[10800] 140.80.103.128.in-addr.arpa. domain name pointer sph80-140.harvard.edu
[10800] 141.80.103.128.in-addr.arpa. domain name pointer sph80-141.harvard.edu
[10800] 142.80.103.128.in-addr.arpa. domain name pointer sph80-142.harvard.edu
[10800] 143.80.103.128.in-addr.arpa. domain name pointer sph80-143.harvard.edu
[10800] 144.80.103.128.in-addr.arpa. domain name pointer sph80-144.harvard.edu
[10800] 145.80.103.128.in-addr.arpa. domain name pointer sph80-145.harvard.edu
[10800] 146.80.103.128.in-addr.arpa. domain name pointer sph80-146.harvard.edu
[10800] 147.80.103.128.in-addr.arpa. domain name pointer sph80-147.harvard.edu
[10800] 148.80.103.128.in-addr.arpa. domain name pointer sph80-148.harvard.edu
[10800] 149.80.103.128.in-addr.arpa. domain name pointer sph80-149.harvard.edu
[10800] 150.80.103.128.in-addr.arpa. domain name pointer sph80-150.harvard.edu
[10800] 151.80.103.128.in-addr.arpa. domain name pointer sph80-151.harvard.edu
[10800] 152.80.103.128.in-addr.arpa. domain name pointer sph80-152.harvard.edu
[10800] 153.80.103.128.in-addr.arpa. domain name pointer sph80-153.harvard.edu
[10800] 154.80.103.128.in-addr.arpa. domain name pointer sph80-154.harvard.edu
[10800] 155.80.103.128.in-addr.arpa. domain name pointer sph80-155.harvard.edu
[10800] 156.80.103.128.in-addr.arpa. domain name pointer sph80-156.harvard.edu
[10800] 157.80.103.128.in-addr.arpa. domain name pointer sph80-157.harvard.edu
[10800] 158.80.103.128.in-addr.arpa. domain name pointer sph80-158.harvard.edu
[10800] 159.80.103.128.in-addr.arpa. domain name pointer sph80-159.harvard.edu
[10800] 160.80.103.128.in-addr.arpa. domain name pointer sph80-160.harvard.edu
[10800] 161.80.103.128.in-addr.arpa. domain name pointer sph80-161.harvard.edu
[10800] 162.80.103.128.in-addr.arpa. domain name pointer sph80-162.harvard.edu
[10800] 163.80.103.128.in-addr.arpa. domain name pointer sph80-163.harvard.edu
[10800] 164.80.103.128.in-addr.arpa. domain name pointer sph80-164.harvard.edu
[10800] 165.80.103.128.in-addr.arpa. domain name pointer sph80-165.harvard.edu
[10800] 166.80.103.128.in-addr.arpa. domain name pointer sph80-166.harvard.edu
[10800] 167.80.103.128.in-addr.arpa. domain name pointer sph80-167.harvard.edu
[10800] 168.80.103.128.in-addr.arpa. domain name pointer sph80-168.harvard.edu
[10800] 169.80.103.128.in-addr.arpa. domain name pointer sph80-169.harvard.edu
[10800] 170.80.103.128.in-addr.arpa. domain name pointer sph80-170.harvard.edu
[10800] 171.80.103.128.in-addr.arpa. domain name pointer sph80-171.harvard.edu
[10800] 172.80.103.128.in-addr.arpa. domain name pointer sph80-172.harvard.edu
[10800] 173.80.103.128.in-addr.arpa. domain name pointer sph80-173.harvard.edu
[10800] 174.80.103.128.in-addr.arpa. domain name pointer sph80-174.harvard.edu
[10800] 175.80.103.128.in-addr.arpa. domain name pointer sph80-175.harvard.edu
[10800] 176.80.103.128.in-addr.arpa. domain name pointer sph80-176.harvard.edu
[10800] 177.80.103.128.in-addr.arpa. domain name pointer sph80-177.harvard.edu
[10800] 178.80.103.128.in-addr.arpa. domain name pointer sph80-178.harvard.edu
[10800] 179.80.103.128.in-addr.arpa. domain name pointer sph80-179.harvard.edu
[10800] 180.80.103.128.in-addr.arpa. domain name pointer sph80-180.harvard.edu
[10800] 181.80.103.128.in-addr.arpa. domain name pointer sph80-181.harvard.edu
[10800] 182.80.103.128.in-addr.arpa. domain name pointer sph80-182.harvard.edu
[10800] 183.80.103.128.in-addr.arpa. domain name pointer sph80-183.harvard.edu
[10800] 184.80.103.128.in-addr.arpa. domain name pointer sph80-184.harvard.edu
[10800] 185.80.103.128.in-addr.arpa. domain name pointer sph80-185.harvard.edu
[10800] 186.80.103.128.in-addr.arpa. domain name pointer sph80-186.harvard.edu
[10800] 187.80.103.128.in-addr.arpa. domain name pointer sph80-187.harvard.edu
[10800] 188.80.103.128.in-addr.arpa. domain name pointer sph80-188.harvard.edu
[10800] 189.80.103.128.in-addr.arpa. domain name pointer sph80-189.harvard.edu
[10800] 190.80.103.128.in-addr.arpa. domain name pointer sph80-190.harvard.edu
[10800] 191.80.103.128.in-addr.arpa. domain name pointer sph80-191.harvard.edu
[10800] 192.80.103.128.in-addr.arpa. domain name pointer sph80-192.harvard.edu
[10800] 193.80.103.128.in-addr.arpa. domain name pointer sph80-193.harvard.edu
[10800] 194.80.103.128.in-addr.arpa. domain name pointer sph80-194.harvard.edu
[10800] 195.80.103.128.in-addr.arpa. domain name pointer sph80-195.harvard.edu
[10800] 196.80.103.128.in-addr.arpa. domain name pointer sph80-196.harvard.edu
[10800] 197.80.103.128.in-addr.arpa. domain name pointer sph80-197.harvard.edu
[10800] 198.80.103.128.in-addr.arpa. domain name pointer sph80-198.harvard.edu
[10800] 199.80.103.128.in-addr.arpa. domain name pointer sph80-199.harvard.edu
[10800] 200.80.103.128.in-addr.arpa. domain name pointer sph80-200.harvard.edu
[10800] 201.80.103.128.in-addr.arpa. domain name pointer sph80-201.harvard.edu
[10800] 202.80.103.128.in-addr.arpa. domain name pointer sph80-202.harvard.edu
[10800] 203.80.103.128.in-addr.arpa. domain name pointer sph80-203.harvard.edu
[10800] 204.80.103.128.in-addr.arpa. domain name pointer sph80-204.harvard.edu
[10800] 205.80.103.128.in-addr.arpa. domain name pointer sph80-205.harvard.edu
[10800] 206.80.103.128.in-addr.arpa. domain name pointer sph80-206.harvard.edu
[10800] 207.80.103.128.in-addr.arpa. domain name pointer sph80-207.harvard.edu
[10800] 208.80.103.128.in-addr.arpa. domain name pointer sph80-208.harvard.edu
[10800] 209.80.103.128.in-addr.arpa. domain name pointer sph80-209.harvard.edu
[10800] 210.80.103.128.in-addr.arpa. domain name pointer sph80-210.harvard.edu
[10800] 211.80.103.128.in-addr.arpa. domain name pointer sph80-211.harvard.edu
[10800] 212.80.103.128.in-addr.arpa. domain name pointer sph80-212.harvard.edu
[10800] 213.80.103.128.in-addr.arpa. domain name pointer sph80-213.harvard.edu
[10800] 214.80.103.128.in-addr.arpa. domain name pointer sph80-214.harvard.edu
[10800] 215.80.103.128.in-addr.arpa. domain name pointer sph80-215.harvard.edu
[10800] 216.80.103.128.in-addr.arpa. domain name pointer sph80-216.harvard.edu
[10800] 217.80.103.128.in-addr.arpa. domain name pointer sph80-217.harvard.edu
[10800] 218.80.103.128.in-addr.arpa. domain name pointer sph80-218.harvard.edu
[10800] 219.80.103.128.in-addr.arpa. domain name pointer sph80-219.harvard.edu
[10800] 220.80.103.128.in-addr.arpa. domain name pointer sph80-220.harvard.edu
[10800] 221.80.103.128.in-addr.arpa. domain name pointer sph80-221.harvard.edu
[10800] 222.80.103.128.in-addr.arpa. domain name pointer sph80-222.harvard.edu
[10800] 223.80.103.128.in-addr.arpa. domain name pointer sph80-223.harvard.edu
[10800] 224.80.103.128.in-addr.arpa. domain name pointer sph80-224.harvard.edu
[10800] 225.80.103.128.in-addr.arpa. domain name pointer sph80-225.harvard.edu
[10800] 226.80.103.128.in-addr.arpa. domain name pointer sph80-226.harvard.edu
[10800] 227.80.103.128.in-addr.arpa. domain name pointer sph80-227.harvard.edu
[10800] 228.80.103.128.in-addr.arpa. domain name pointer sph80-228.harvard.edu
[10800] 229.80.103.128.in-addr.arpa. domain name pointer sph80-229.harvard.edu
[10800] 230.80.103.128.in-addr.arpa. domain name pointer sph80-230.harvard.edu
[10800] 231.80.103.128.in-addr.arpa. domain name pointer sph80-231.harvard.edu
[10800] 232.80.103.128.in-addr.arpa. domain name pointer sph80-232.harvard.edu
[10800] 233.80.103.128.in-addr.arpa. domain name pointer sph80-233.harvard.edu
[10800] 234.80.103.128.in-addr.arpa. domain name pointer sph80-234.harvard.edu
[10800] 235.80.103.128.in-addr.arpa. domain name pointer sph80-235.harvard.edu
[10800] 236.80.103.128.in-addr.arpa. domain name pointer sph80-236.harvard.edu
[10800] 237.80.103.128.in-addr.arpa. domain name pointer sph80-237.harvard.edu
[10800] 238.80.103.128.in-addr.arpa. domain name pointer sph80-238.harvard.edu
[10800] 239.80.103.128.in-addr.arpa. domain name pointer sph80-239.harvard.edu
[10800] 240.80.103.128.in-addr.arpa. domain name pointer sph80-240.harvard.edu
[10800] 241.80.103.128.in-addr.arpa. domain name pointer sph80-241.harvard.edu
[10800] 242.80.103.128.in-addr.arpa. domain name pointer sph80-242.harvard.edu
[10800] 243.80.103.128.in-addr.arpa. domain name pointer sph80-243.harvard.edu
[10800] 244.80.103.128.in-addr.arpa. domain name pointer sph80-244.harvard.edu
[10800] 245.80.103.128.in-addr.arpa. domain name pointer sph80-245.harvard.edu
[10800] 246.80.103.128.in-addr.arpa. domain name pointer sph80-246.harvard.edu
[10800] 247.80.103.128.in-addr.arpa. domain name pointer sph80-247.harvard.edu
[10800] 248.80.103.128.in-addr.arpa. domain name pointer sph80-248.harvard.edu
[10800] 249.80.103.128.in-addr.arpa. domain name pointer sph80-249.harvard.edu
[10800] 250.80.103.128.in-addr.arpa. domain name pointer sph80-250.harvard.edu
[10800] 251.80.103.128.in-addr.arpa. domain name pointer sph80-251.harvard.edu
[10800] 252.80.103.128.in-addr.arpa. domain name pointer sph80-252.harvard.edu
[10800] 253.80.103.128.in-addr.arpa. domain name pointer sph80-253.harvard.edu
[10800] 254.80.103.128.in-addr.arpa. domain name pointer sph80-254.harvard.edu
[0] 255.80.103.128.in-addr.arpa.: domain name does not exist