6to4 DNS space
David Malone
dwmalone at maths.tcd.ie
Tue Oct 23 22:42:01 CEST 2007
Is it my imagination, or has the reverse DNS space for 2002:: become
a twisty maze of lame delegations again? Only two of the five
ip6.arpa servers answer a query for 2.0.0.2.ip6.arpa; the other 3
look lame.
The ones that work point to name servers in 6to4.nro.net. Two of
the four servers for nro.net can give NS records for 6to4.nro.net
and the other two are lame.
When I finally ask for addresses of the servers in 6to4.nro.net, 3
of the 4 servers are probably lame, and the fourth REFUSED to answer
my query.
David.
dig ns 2.0.0.2.ip6.arpa @...
ns.icann.org:
ns-sec.ripe.net:
2.0.0.2.ip6.arpa. 84600 IN NS ns-lacnic.6to4.nro.net.
2.0.0.2.ip6.arpa. 84600 IN NS ns-arin.6to4.nro.net.
2.0.0.2.ip6.arpa. 84600 IN NS ns-ripe.6to4.nro.net.
2.0.0.2.ip6.arpa. 84600 IN NS ns-apnic.6to4.nro.net.
ns.lacnic.net:
sec1.apnic.net:
tinnie.arin.net:
*SERVFAIL*
dig ns 6to4.nro.net @...
ns-pri.ripe.net:
sec1.apnic.net:
6to4.nro.net. 172800 IN NS ns.ripe.net.
6to4.nro.net. 172800 IN NS ns.lacnic.net.
6to4.nro.net. 172800 IN NS ns3.apnic.net.
6to4.nro.net. 172800 IN NS tinnie.arin.net.
ns.lacnic.net:
tinnie.arin.net:
SERVFAIL
dig any ns-lacnic.6to4.nro.net @...
ns.ripe.net:
ns.lacnic.net:
tinnie.arin.net:
SERVFAIL
ns3.apnic.net:
REFUSED
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