Dear Sir or Madam, Nour.net is One of the ISPs in Saudia Arabia. One of our customers facing problem with reverse lookup for its subnet (which is 212.12.165.128/28). To solve that, I create a reveres pointer in our name server, beside that, i create 165.12.212.in-addr.arpa object that related to that customer in RIPE site, but still the problem present. I tried to do reverse lookup from www.dnsstuff.com, it gives no PTR for that subnet. So please guide us to solve this problem. Thank You. Firas A. Hammad Network Eng. CCNA, MCSE ================ NourNet. Saudi Arabia Tel. 966-1-4728900 x 235 Fax 966-1-4727727 ================ firas@nour.net.sa