[ripe.net #160645] 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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