nmap, the port scanner, has a UDP scan. you can find it at http://www.insecure.org/nmap --Adam -----Original Message----- From: Tatsuya Kawasaki <tatsuya@giganet.net> To: nanog ml <nanog@merit.edu> Date: Monday, September 28, 1998 12:51 AM Subject: UDP packet/DNS server Hello Nanog, I am trying get zone trasfer from a host, but it seems that because of firewals?, I can not get any record. They acknowelged that there is a host behind the firewalls but they claim it should not affect it. (I don't believe it.) But I don't know how to check/prove that if certain host can receive/send an UDP packet. TIA, Tatsuya $B$+$o$5$-(B TK3197 = = = = = = Business Network Telecom (BNT) $B%S%8%M%9%M%C%H%o!<%/%F%l%3%`3t<02q<R(B $B")(B111-0053$B!!El5~ETBfEl6h@uAp66(B3-8-5 31$B;35~%S%k(B6$B3,(B TEL 03-5687-3945 FAX 03-5687-6009 http://www.giganet.net