[0] 0.172.151.202.in-addr.arpa.: domain name does not exist
[86400] 1.172.151.202.in-addr.arpa. domain name pointer ci172-1.netnam.vn
[86400] 2.172.151.202.in-addr.arpa. domain name pointer ci172-2.netnam.vn
[86400] 3.172.151.202.in-addr.arpa. domain name pointer ci172-3.netnam.vn
[86400] 4.172.151.202.in-addr.arpa. domain name pointer ci172-4.netnam.vn
[86400] 5.172.151.202.in-addr.arpa. domain name pointer ci172-5.netnam.vn
[86400] 6.172.151.202.in-addr.arpa. domain name pointer ci172-6.netnam.vn
[86400] 7.172.151.202.in-addr.arpa. domain name pointer ci172-7.netnam.vn
[86400] 8.172.151.202.in-addr.arpa. domain name pointer ci172-8.netnam.vn
[86400] 9.172.151.202.in-addr.arpa. domain name pointer ci172-9.netnam.vn
[86400] 10.172.151.202.in-addr.arpa. domain name pointer ci172-10.netnam.vn
[86400] 11.172.151.202.in-addr.arpa. domain name pointer ci172-11.netnam.vn
[86400] 12.172.151.202.in-addr.arpa. domain name pointer ci172-12.netnam.vn
[86400] 13.172.151.202.in-addr.arpa. domain name pointer ci172-13.netnam.vn
[86400] 14.172.151.202.in-addr.arpa. domain name pointer ci172-14.netnam.vn
[86400] 15.172.151.202.in-addr.arpa. domain name pointer ci172-15.netnam.vn
[86400] 16.172.151.202.in-addr.arpa. domain name pointer ci172-16.netnam.vn
[86400] 17.172.151.202.in-addr.arpa. domain name pointer ci172-17.netnam.vn
[86400] 18.172.151.202.in-addr.arpa. domain name pointer ci172-18.netnam.vn
[86400] 19.172.151.202.in-addr.arpa. domain name pointer ci172-19.netnam.vn
[86400] 20.172.151.202.in-addr.arpa. domain name pointer ci172-20.netnam.vn
[86400] 21.172.151.202.in-addr.arpa. domain name pointer ci172-21.netnam.vn
[86400] 22.172.151.202.in-addr.arpa. domain name pointer ci172-22.netnam.vn
[86400] 23.172.151.202.in-addr.arpa. domain name pointer ci172-23.netnam.vn
[86400] 24.172.151.202.in-addr.arpa. domain name pointer ci172-24.netnam.vn
[86400] 25.172.151.202.in-addr.arpa. domain name pointer ci172-25.netnam.vn
[86400] 26.172.151.202.in-addr.arpa. domain name pointer ci172-26.netnam.vn
[86400] 27.172.151.202.in-addr.arpa. domain name pointer ci172-27.netnam.vn
[86400] 28.172.151.202.in-addr.arpa. domain name pointer ci172-28.netnam.vn
[86400] 29.172.151.202.in-addr.arpa. domain name pointer ci172-29.netnam.vn
[86400] 30.172.151.202.in-addr.arpa. domain name pointer ci172-30.netnam.vn
[86400] 31.172.151.202.in-addr.arpa. domain name pointer ci172-31.netnam.vn
[86400] 32.172.151.202.in-addr.arpa. domain name pointer ci172-32.netnam.vn
[86400] 33.172.151.202.in-addr.arpa. domain name pointer ci172-33.netnam.vn
[86400] 34.172.151.202.in-addr.arpa. domain name pointer ci172-34.netnam.vn
[86400] 35.172.151.202.in-addr.arpa. domain name pointer ci172-35.netnam.vn
[86400] 36.172.151.202.in-addr.arpa. domain name pointer ci172-36.netnam.vn
[86400] 37.172.151.202.in-addr.arpa. domain name pointer ci172-37.netnam.vn
[86400] 38.172.151.202.in-addr.arpa. domain name pointer ci172-38.netnam.vn
[86400] 39.172.151.202.in-addr.arpa. domain name pointer ci172-39.netnam.vn
[86400] 40.172.151.202.in-addr.arpa. domain name pointer ci172-40.netnam.vn
[86400] 41.172.151.202.in-addr.arpa. domain name pointer ci172-41.netnam.vn
[86400] 42.172.151.202.in-addr.arpa. domain name pointer ci172-42.netnam.vn
[86400] 43.172.151.202.in-addr.arpa. domain name pointer ci172-43.netnam.vn
[86400] 44.172.151.202.in-addr.arpa. domain name pointer ci172-44.netnam.vn
[86400] 45.172.151.202.in-addr.arpa. domain name pointer ci172-45.netnam.vn
[86400] 46.172.151.202.in-addr.arpa. domain name pointer ci172-46.netnam.vn
[86400] 47.172.151.202.in-addr.arpa. domain name pointer ci172-47.netnam.vn
[86400] 48.172.151.202.in-addr.arpa. domain name pointer ci172-48.netnam.vn
[86400] 49.172.151.202.in-addr.arpa. domain name pointer ci172-49.netnam.vn
[86400] 50.172.151.202.in-addr.arpa. domain name pointer ci172-50.netnam.vn
[86400] 51.172.151.202.in-addr.arpa. domain name pointer ci172-51.netnam.vn
[86400] 52.172.151.202.in-addr.arpa. domain name pointer ci172-52.netnam.vn
[86400] 53.172.151.202.in-addr.arpa. domain name pointer ci172-53.netnam.vn
[86400] 54.172.151.202.in-addr.arpa. domain name pointer ci172-54.netnam.vn
[86400] 55.172.151.202.in-addr.arpa. domain name pointer ci172-55.netnam.vn
[86400] 56.172.151.202.in-addr.arpa. domain name pointer ci172-56.netnam.vn
[86400] 57.172.151.202.in-addr.arpa. domain name pointer ci172-57.netnam.vn
[86400] 58.172.151.202.in-addr.arpa. domain name pointer ci172-58.netnam.vn
[86400] 59.172.151.202.in-addr.arpa. domain name pointer ci172-59.netnam.vn
[86400] 60.172.151.202.in-addr.arpa. domain name pointer ci172-60.netnam.vn
[86400] 61.172.151.202.in-addr.arpa. domain name pointer ci172-61.netnam.vn
[86400] 62.172.151.202.in-addr.arpa. domain name pointer ci172-62.netnam.vn
[86400] 63.172.151.202.in-addr.arpa. domain name pointer ci172-63.netnam.vn
[86400] 64.172.151.202.in-addr.arpa. domain name pointer ci172-64.netnam.vn
[86400] 65.172.151.202.in-addr.arpa. domain name pointer ci172-65.netnam.vn
[86400] 66.172.151.202.in-addr.arpa. domain name pointer ci172-66.netnam.vn
[86400] 67.172.151.202.in-addr.arpa. domain name pointer ci172-67.netnam.vn
[86400] 68.172.151.202.in-addr.arpa. domain name pointer ci172-68.netnam.vn
[86400] 69.172.151.202.in-addr.arpa. domain name pointer ci172-69.netnam.vn
[86400] 70.172.151.202.in-addr.arpa. domain name pointer ci172-70.netnam.vn
[86400] 71.172.151.202.in-addr.arpa. domain name pointer ci172-71.netnam.vn
[86400] 72.172.151.202.in-addr.arpa. domain name pointer ci172-72.netnam.vn
[86400] 73.172.151.202.in-addr.arpa. domain name pointer ci172-73.netnam.vn
[86400] 74.172.151.202.in-addr.arpa. domain name pointer ci172-74.netnam.vn
[86400] 75.172.151.202.in-addr.arpa. domain name pointer ci172-75.netnam.vn
[86400] 76.172.151.202.in-addr.arpa. domain name pointer ci172-76.netnam.vn
[86400] 77.172.151.202.in-addr.arpa. domain name pointer ci172-77.netnam.vn
[86400] 78.172.151.202.in-addr.arpa. domain name pointer ci172-78.netnam.vn
[86400] 79.172.151.202.in-addr.arpa. domain name pointer ci172-79.netnam.vn
[86400] 80.172.151.202.in-addr.arpa. domain name pointer ci172-80.netnam.vn
[86400] 81.172.151.202.in-addr.arpa. domain name pointer ci172-81.netnam.vn
[86400] 82.172.151.202.in-addr.arpa. domain name pointer ci172-82.netnam.vn
[86400] 83.172.151.202.in-addr.arpa. domain name pointer ci172-83.netnam.vn
[86400] 84.172.151.202.in-addr.arpa. domain name pointer ci172-84.netnam.vn
[86400] 85.172.151.202.in-addr.arpa. domain name pointer ci172-85.netnam.vn
[86400] 86.172.151.202.in-addr.arpa. domain name pointer ci172-86.netnam.vn
[86400] 87.172.151.202.in-addr.arpa. domain name pointer ci172-87.netnam.vn
[86400] 88.172.151.202.in-addr.arpa. domain name pointer ci172-88.netnam.vn
[86400] 89.172.151.202.in-addr.arpa. domain name pointer ci172-89.netnam.vn
[86400] 90.172.151.202.in-addr.arpa. domain name pointer ci172-90.netnam.vn
[86400] 91.172.151.202.in-addr.arpa. domain name pointer ci172-91.netnam.vn
[86400] 92.172.151.202.in-addr.arpa. domain name pointer ci172-92.netnam.vn
[86400] 93.172.151.202.in-addr.arpa. domain name pointer ci172-93.netnam.vn
[86400] 94.172.151.202.in-addr.arpa. domain name pointer ci172-94.netnam.vn
[86400] 95.172.151.202.in-addr.arpa. domain name pointer ci172-95.netnam.vn
[86400] 96.172.151.202.in-addr.arpa. domain name pointer ci172-96.netnam.vn
[86400] 97.172.151.202.in-addr.arpa. domain name pointer ci172-97.netnam.vn
[86400] 98.172.151.202.in-addr.arpa. domain name pointer ci172-98.netnam.vn
[86400] 99.172.151.202.in-addr.arpa. domain name pointer ci172-99.netnam.vn
[86400] 100.172.151.202.in-addr.arpa. domain name pointer ci172-100.netnam.vn
[86400] 101.172.151.202.in-addr.arpa. domain name pointer ci172-101.netnam.vn
[86400] 102.172.151.202.in-addr.arpa. domain name pointer ci172-102.netnam.vn
[86400] 103.172.151.202.in-addr.arpa. domain name pointer ci172-103.netnam.vn
[86400] 104.172.151.202.in-addr.arpa. domain name pointer ci172-104.netnam.vn
[86400] 105.172.151.202.in-addr.arpa. domain name pointer ci172-105.netnam.vn
[86400] 106.172.151.202.in-addr.arpa. domain name pointer ci172-106.netnam.vn
[86400] 107.172.151.202.in-addr.arpa. domain name pointer ci172-107.netnam.vn
[86400] 108.172.151.202.in-addr.arpa. domain name pointer ci172-108.netnam.vn
[86400] 109.172.151.202.in-addr.arpa. domain name pointer ci172-109.netnam.vn
[86400] 110.172.151.202.in-addr.arpa. domain name pointer ci172-110.netnam.vn
[86400] 111.172.151.202.in-addr.arpa. domain name pointer ci172-111.netnam.vn
[86400] 112.172.151.202.in-addr.arpa. domain name pointer ci172-112.netnam.vn
[86400] 113.172.151.202.in-addr.arpa. domain name pointer ci172-113.netnam.vn
[86400] 114.172.151.202.in-addr.arpa. domain name pointer ci172-114.netnam.vn
[86400] 115.172.151.202.in-addr.arpa. domain name pointer ci172-115.netnam.vn
[86400] 116.172.151.202.in-addr.arpa. domain name pointer ci172-116.netnam.vn
[86400] 117.172.151.202.in-addr.arpa. domain name pointer ci172-117.netnam.vn
[86400] 118.172.151.202.in-addr.arpa. domain name pointer ci172-118.netnam.vn
[86400] 119.172.151.202.in-addr.arpa. domain name pointer ci172-119.netnam.vn
[86400] 120.172.151.202.in-addr.arpa. domain name pointer ci172-120.netnam.vn
[86400] 121.172.151.202.in-addr.arpa. domain name pointer ci172-121.netnam.vn
[86400] 122.172.151.202.in-addr.arpa. domain name pointer ci172-122.netnam.vn
[86400] 123.172.151.202.in-addr.arpa. domain name pointer ci172-123.netnam.vn
[86400] 124.172.151.202.in-addr.arpa. domain name pointer ci172-124.netnam.vn
[86400] 125.172.151.202.in-addr.arpa. domain name pointer ci172-125.netnam.vn
[86400] 126.172.151.202.in-addr.arpa. domain name pointer ci172-126.netnam.vn
[86400] 127.172.151.202.in-addr.arpa. domain name pointer ci172-127.netnam.vn
[86400] 128.172.151.202.in-addr.arpa. domain name pointer ci172-128.netnam.vn
[86400] 129.172.151.202.in-addr.arpa. domain name pointer ci172-129.netnam.vn
[86400] 130.172.151.202.in-addr.arpa. domain name pointer ci172-130.netnam.vn
[86400] 131.172.151.202.in-addr.arpa. domain name pointer ci172-131.netnam.vn
[86400] 132.172.151.202.in-addr.arpa. domain name pointer ci172-132.netnam.vn
[86400] 133.172.151.202.in-addr.arpa. domain name pointer ci172-133.netnam.vn
[86400] 134.172.151.202.in-addr.arpa. domain name pointer ci172-134.netnam.vn
[86400] 135.172.151.202.in-addr.arpa. domain name pointer ci172-135.netnam.vn
[86400] 136.172.151.202.in-addr.arpa. domain name pointer ci172-136.netnam.vn
[86400] 137.172.151.202.in-addr.arpa. domain name pointer ci172-137.netnam.vn
[86400] 138.172.151.202.in-addr.arpa. domain name pointer ci172-138.netnam.vn
[86400] 139.172.151.202.in-addr.arpa. domain name pointer ci172-139.netnam.vn
[86400] 140.172.151.202.in-addr.arpa. domain name pointer ci172-140.netnam.vn
[86400] 141.172.151.202.in-addr.arpa. domain name pointer ci172-141.netnam.vn
[86400] 142.172.151.202.in-addr.arpa. domain name pointer ci172-142.netnam.vn
[86400] 143.172.151.202.in-addr.arpa. domain name pointer ci172-143.netnam.vn
[86400] 144.172.151.202.in-addr.arpa. domain name pointer ci172-144.netnam.vn
[86400] 145.172.151.202.in-addr.arpa. domain name pointer ci172-145.netnam.vn
[86400] 146.172.151.202.in-addr.arpa. domain name pointer ci172-146.netnam.vn
[86400] 147.172.151.202.in-addr.arpa. domain name pointer ci172-147.netnam.vn
[86400] 148.172.151.202.in-addr.arpa. domain name pointer ci172-148.netnam.vn
[86400] 149.172.151.202.in-addr.arpa. domain name pointer ci172-149.netnam.vn
[86400] 150.172.151.202.in-addr.arpa. domain name pointer ci172-150.netnam.vn
[86400] 151.172.151.202.in-addr.arpa. domain name pointer ci172-151.netnam.vn
[86400] 152.172.151.202.in-addr.arpa. domain name pointer ci172-152.netnam.vn
[86400] 153.172.151.202.in-addr.arpa. domain name pointer ci172-153.netnam.vn
[86400] 154.172.151.202.in-addr.arpa. domain name pointer ci172-154.netnam.vn
[86400] 155.172.151.202.in-addr.arpa. domain name pointer ci172-155.netnam.vn
[86400] 156.172.151.202.in-addr.arpa. domain name pointer ci172-156.netnam.vn
[86400] 157.172.151.202.in-addr.arpa. domain name pointer ci172-157.netnam.vn
[86400] 158.172.151.202.in-addr.arpa. domain name pointer ci172-158.netnam.vn
[86400] 159.172.151.202.in-addr.arpa. domain name pointer ci172-159.netnam.vn
[86400] 160.172.151.202.in-addr.arpa. domain name pointer ci172-160.netnam.vn
[86400] 161.172.151.202.in-addr.arpa. domain name pointer ci172-161.netnam.vn
[86400] 162.172.151.202.in-addr.arpa. domain name pointer ci172-162.netnam.vn
[86400] 163.172.151.202.in-addr.arpa. domain name pointer ci172-163.netnam.vn
[86400] 164.172.151.202.in-addr.arpa. domain name pointer ci172-164.netnam.vn
[86400] 165.172.151.202.in-addr.arpa. domain name pointer ci172-165.netnam.vn
[86400] 166.172.151.202.in-addr.arpa. domain name pointer ci172-166.netnam.vn
[86400] 167.172.151.202.in-addr.arpa. domain name pointer ci172-167.netnam.vn
[86400] 168.172.151.202.in-addr.arpa. domain name pointer ci172-168.netnam.vn
[86400] 169.172.151.202.in-addr.arpa. domain name pointer ci172-169.netnam.vn
[86400] 170.172.151.202.in-addr.arpa. domain name pointer ci172-170.netnam.vn
[86400] 171.172.151.202.in-addr.arpa. domain name pointer ci172-171.netnam.vn
[86400] 172.172.151.202.in-addr.arpa. domain name pointer ci172-172.netnam.vn
[86400] 173.172.151.202.in-addr.arpa. domain name pointer ci172-173.netnam.vn
[86400] 174.172.151.202.in-addr.arpa. domain name pointer ci172-174.netnam.vn
[86400] 175.172.151.202.in-addr.arpa. domain name pointer ci172-175.netnam.vn
[86400] 176.172.151.202.in-addr.arpa. domain name pointer ci172-176.netnam.vn
[86400] 177.172.151.202.in-addr.arpa. domain name pointer ci172-177.netnam.vn
[86400] 178.172.151.202.in-addr.arpa. domain name pointer ci172-178.netnam.vn
[86400] 179.172.151.202.in-addr.arpa. domain name pointer ci172-179.netnam.vn
[86400] 180.172.151.202.in-addr.arpa. domain name pointer ci172-180.netnam.vn
[86400] 181.172.151.202.in-addr.arpa. domain name pointer ci172-181.netnam.vn
[86400] 182.172.151.202.in-addr.arpa. domain name pointer ci172-182.netnam.vn
[86400] 183.172.151.202.in-addr.arpa. domain name pointer ci172-183.netnam.vn
[86400] 184.172.151.202.in-addr.arpa. domain name pointer ci172-184.netnam.vn
[86400] 185.172.151.202.in-addr.arpa. domain name pointer ci172-185.netnam.vn
[86400] 186.172.151.202.in-addr.arpa. domain name pointer ci172-186.netnam.vn
[86400] 187.172.151.202.in-addr.arpa. domain name pointer ci172-187.netnam.vn
[86400] 188.172.151.202.in-addr.arpa. domain name pointer ci172-188.netnam.vn
[86400] 189.172.151.202.in-addr.arpa. domain name pointer ci172-189.netnam.vn
[86400] 190.172.151.202.in-addr.arpa. domain name pointer ci172-190.netnam.vn
[86400] 191.172.151.202.in-addr.arpa. domain name pointer ci172-191.netnam.vn
[86400] 192.172.151.202.in-addr.arpa. domain name pointer ci172-192.netnam.vn
[86400] 193.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 194.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 195.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 196.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 197.172.151.202.in-addr.arpa. domain name pointer mail.gt.com.vn
[86400] 198.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 199.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 200.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 201.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 202.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 203.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 204.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 205.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 206.172.151.202.in-addr.arpa. domain name pointer astaro.gt.com.vn
[86400] 207.172.151.202.in-addr.arpa. domain name pointer ci172-207.netnam.vn
[86400] 208.172.151.202.in-addr.arpa. domain name pointer ci172-208.netnam.vn
[86400] 209.172.151.202.in-addr.arpa. domain name pointer ci172-209.netnam.vn
[86400] 210.172.151.202.in-addr.arpa. domain name pointer ci172-210.netnam.vn
[86400] 211.172.151.202.in-addr.arpa. domain name pointer ci172-211.netnam.vn
[86400] 212.172.151.202.in-addr.arpa. domain name pointer ci172-212.netnam.vn
[86400] 213.172.151.202.in-addr.arpa. domain name pointer ci172-213.netnam.vn
[86400] 214.172.151.202.in-addr.arpa. domain name pointer ci172-214.netnam.vn
[86400] 215.172.151.202.in-addr.arpa. domain name pointer ci172-215.netnam.vn
[86400] 216.172.151.202.in-addr.arpa. domain name pointer ci172-216.netnam.vn
[86400] 217.172.151.202.in-addr.arpa. domain name pointer ci172-217.netnam.vn
[86400] 218.172.151.202.in-addr.arpa. domain name pointer ci172-218.netnam.vn
[86400] 219.172.151.202.in-addr.arpa. domain name pointer ci172-219.netnam.vn
[86400] 220.172.151.202.in-addr.arpa. domain name pointer ci172-220.netnam.vn
[86400] 221.172.151.202.in-addr.arpa. domain name pointer ci172-221.netnam.vn
[86400] 222.172.151.202.in-addr.arpa. domain name pointer ci172-222.netnam.vn
[86400] 223.172.151.202.in-addr.arpa. domain name pointer ci172-223.netnam.vn
[86400] 224.172.151.202.in-addr.arpa. domain name pointer ci172-224.netnam.vn
[86400] 225.172.151.202.in-addr.arpa. domain name pointer ci172-225.netnam.vn
[86400] 226.172.151.202.in-addr.arpa. domain name pointer ci172-226.netnam.vn
[86400] 227.172.151.202.in-addr.arpa. domain name pointer ci172-227.netnam.vn
[86400] 228.172.151.202.in-addr.arpa. domain name pointer ci172-228.netnam.vn
[86400] 229.172.151.202.in-addr.arpa. domain name pointer ci172-229.netnam.vn
[86400] 230.172.151.202.in-addr.arpa. domain name pointer ci172-230.netnam.vn
[86400] 231.172.151.202.in-addr.arpa. domain name pointer ci172-231.netnam.vn
[86400] 232.172.151.202.in-addr.arpa. domain name pointer ci172-232.netnam.vn
[86400] 233.172.151.202.in-addr.arpa. domain name pointer ci172-233.netnam.vn
[86400] 234.172.151.202.in-addr.arpa. domain name pointer ci172-234.netnam.vn
[86400] 235.172.151.202.in-addr.arpa. domain name pointer ci172-235.netnam.vn
[86400] 236.172.151.202.in-addr.arpa. domain name pointer ci172-236.netnam.vn
[86400] 237.172.151.202.in-addr.arpa. domain name pointer ci172-237.netnam.vn
[86400] 238.172.151.202.in-addr.arpa. domain name pointer ci172-238.netnam.vn
[86400] 239.172.151.202.in-addr.arpa. domain name pointer ci172-239.netnam.vn
[86400] 240.172.151.202.in-addr.arpa. domain name pointer ci172-240.netnam.vn
[86400] 241.172.151.202.in-addr.arpa. domain name pointer ci172-241.netnam.vn
[86400] 242.172.151.202.in-addr.arpa. domain name pointer ci172-242.netnam.vn
[86400] 243.172.151.202.in-addr.arpa. domain name pointer ci172-243.netnam.vn
[86400] 244.172.151.202.in-addr.arpa. domain name pointer ci172-244.netnam.vn
[86400] 245.172.151.202.in-addr.arpa. domain name pointer ci172-245.netnam.vn
[86400] 246.172.151.202.in-addr.arpa. domain name pointer ci172-246.netnam.vn
[86400] 247.172.151.202.in-addr.arpa. domain name pointer ci172-247.netnam.vn
[86400] 248.172.151.202.in-addr.arpa. domain name pointer ci172-248.netnam.vn
[86400] 249.172.151.202.in-addr.arpa. domain name pointer ci172-249.netnam.vn
[86400] 250.172.151.202.in-addr.arpa. domain name pointer ci172-250.netnam.vn
[86400] 251.172.151.202.in-addr.arpa. domain name pointer ci172-251.netnam.vn
[86400] 252.172.151.202.in-addr.arpa. domain name pointer ci172-252.netnam.vn
[86400] 253.172.151.202.in-addr.arpa. domain name pointer ci172-253.netnam.vn
[86400] 254.172.151.202.in-addr.arpa. domain name pointer ci172-254.netnam.vn
[0] 255.172.151.202.in-addr.arpa.: domain name does not exist