if i try to log into my machines back in tokyo by IPv6 SSH, it takes very long time. i guess i found the reason - (possible) lame delegation of blah.ip6.int. ip6.arpa. query returns instantly. how could we fix it? itojun % dig e.5.5.e.2.4.e.f.f.f.e.4.5.0.2.0.0.0.0.0.0.0.0.1.0.0.7.3.e.f.f.3.ip6.int. ptr ; <<>> DiG 9.2.3 <<>> e.5.5.e.2.4.e.f.f.f.e.4.5.0.2.0.0.0.0.0.0.0.0.1.0.0.7.3.e.f.f.3.ip6.int. ptr ;; global options: printcmd ;; connection timed out; no servers could be reached % dig e.5.5.e.2.4.e.f.f.f.e.4.5.0.2.0.0.0.0.0.0.0.0.1.0.0.7.3.e.f.f.3.ip6.arpa. ptr ; <<>> DiG 9.2.3 <<>> e.5.5.e.2.4.e.f.f.f.e.4.5.0.2.0.0.0.0.0.0.0.0.1.0.0.7.3.e.f.f.3.ip6.arpa. ptr ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 19137 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;e.5.5.e.2.4.e.f.f.f.e.4.5.0.2.0.0.0.0.0.0.0.0.1.0.0.7.3.e.f.f.3.ip6.arpa. IN PTR ;; AUTHORITY SECTION: ip6.arpa. 10569 IN SOA dns1.icann.org. hostmaster.icann.org. 2003080400 3600 1800 604800 10800 ;; Query time: 1 msec ;; SERVER: 127.0.0.1#53(0.0.0.0) ;; WHEN: Tue Feb 10 21:57:17 2004 ;; MSG SIZE rcvd: 151