Hello everyone, I'm testing DNS over IPv6 on a testbed and I'm confronted to an issue. Here is my configuration: I'm working on a Red Hat Distribution (8.0) with Bind 9.2.1.9 I've set up configuration files and the forward lookup works over IPv4 and IPv6 but the reverse lookup is only working with IPv4. (fec0:0:0:1::2 is one of the site-local addresses of my machine (DNS server)) e.g. host fec0:0:0:1::2 gives me: Host \[xFEC00000000000010000000000000002].ip6.arpa not found: 2(serverfail) First I realized that even if I tried to use ip6.int suffix in the configuration files, the message error keeps the same - Host \[xFEC00000000000010000000000000002].ip6.arpa not found: 2(serverfail) !!! Secondly, by sniffing with ethereal the packets, I've seen that the query is well sent to the computer (loop back) but no response is given and then computer tries to ask root DNS... I'm not out of idea, may be one of you can help me ... I post my config files. ------------------------------------------------------------------------------------------------------ ------ Named.conf ------ // generated by named-bootconf.pl options { directory "/var/named"; listen-on-v6 { any; }; }; // // a caching only nameserver config // controls { inet 127.0.0.1 allow { localhost; } keys { rndckey; }; }; zone "." IN { type hint; file "named.ca"; }; zone "localhost" IN { type master; file "localhost.zone"; allow-update { none; }; }; zone "0.0.127.in-addr.arpa" IN { type master; file "named.local"; allow-update { none; }; }; zone "olympe.gr" IN { type master; file "olympe.gr.zone"; allow-update { none; }; }; zone "236.10.in-addr.arpa" IN { type master; file "10.236.zone"; allow-update { none; }; }; zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" { type master; file "named.local"; allow-update { none; }; }; // zone "2.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.int" { // type master; // file "fec0.0.0.2.zone"; // allow-update { none; }; // }; zone "2.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.arpa" { type master; file "fec0.0.0.2.zone"; allow-update { none; }; }; zone "1.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.arpa" { type master; file "fec0.0.0.1.zone"; allow-update { none; }; }; // zone "1.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.int" { // type master; // file "fec0.0.0.1.zone"; // allow-update { none; }; // }; include "/etc/rndc.key"; -------------------------------------------------------------------------------------------------------- ----- fec0.0.0.1.zone ----- @ IN SOA cassandre.olympe.gr. admin.olympe.gr. ( 2003040603 3H 15M 1W 1D ) IN NS cassandre.olympe.gr. ; $ORIGIN 1.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.arpa. $ORIGIN 1.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.int. 2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 IN PTR cassandre.olympe.gr. 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 IN PTR hermes.olympe.gr. 9.6.6.2.f.7.e.f.f.f.7.c.8.0.2.0 IN PTR arion.olympe.gr. - Regards - Thomas