Here is the current BIND software status with IPng support. Francis.Dupont@inria.fr The last experimental release is BIND 4.9.3 alpha4 (join the mailing list bind-workers@vix.com if you want to use/debug it). The last official release is BIND 4.9.2 and final distrib can be found in gatekeeper.dec.com:[~ftp/]pub/misc/vixie/4.9.2-940221.tar.{Z,gz} and on several anonymous FTP servers. Known problems are negative caching and validating then switch OFF the options NCACHE and VALIDATE. Another problem is resolver library security with SunOS, use the SUNSECURITY switch. SIPP support has been done by Susan Thomson <set@thumper.bellcore.com> and can be found in thumper.bellcore.com:[~ftp/]pub/pip/code/dns/feb94.tar.Z NSAP support has been done by Paul Traina <pst@cisco.com> and can be found in ftp.cisco.com:[~ftp/]bind/4.9.2-beta5-nsap-diffs NSAP support for nslookup (i.e. easy way to find PTR for NSAP addresses) has been done by Richard Colella <colella@nist.gov> and is in osi.ncsl.nist.gov:[~ftp/]pub/ncsa_tuba/nslook_rev_nsap.tar (note: the reverse map root is nsap.int)