thanks for your comment.
But if only some IP have e reverse..what about the other server who have
received an IP in the range? Ip that can be changed every x hours.
IF no reverse, it can be blacklisted for some reasons or having some problems
with services asking a reverse dns resolution.
> From: spa...@countryday.net
> To: hugo...@hotmail.com
> CC: bind-users@lists.isc.org
> Subject: RE: reverse dns for IPV6 ranges
> Date: Mon, 5 Mar 2012 21:15:53 +0000
>
> > Can anyone help me with its experience on reverse dns for IPV6?
> > Presently, when we reverse an IPV4 subnet for clients, we configure all the
> > reverse for the whole subnet.
> > It is a lot of PTR's but perfectly manageable.
> > With IPV6, the number of IP's that we will receive is amazing....
> > So...it seems impossible for every single IPV6 inthe range to configure a
> > PTR.
> > So...what to do?
> > What is the common practice?
> > What is possible with BIND?
>
> For our IPv6 address space 2001:4870:20ca::/48, I created a reverse lookup
> zone a.c.0.2.0.7.8.4.1.0.0.2.ip6.arpa and arranged for delegation from our
> ISP. I included PTR records only for those hosts accessible from the
> outside. Internal DNS is Windows Active Directory integrated. Here's a sample
> from the zone file, which contains about 25 PTR records in all:
>
> $ORIGIN .
> $TTL 3600 ; 1 hour
> a.c.0.2.0.7.8.4.1.0.0.2.ip6.arpa IN SOA ns1.countryday.net.
> hostmaster.countryday.net. (
> 2012030101 ; serial
> 86400 ; refresh (1 day)
> 3600 ; retry (1 hour)
> 1209600 ; expire (2 weeks)
> 3600 ; minimum (1 hour)
> )
> NS ns1.countryday.net.
> NS ns2.countryday.net.
> $ORIGIN 9.0.0.0.a.c.0.2.0.7.8.4.1.0.0.2.ip6.arpa.
> a.5.6.9.f.9.e.4.3.4.3.e.f.a.0.8 PTR ns2.countryday.net.
> $ORIGIN 8.5.1.0.a.c.0.2.0.7.8.4.1.0.0.2.ip6.arpa.
> 2.9.1.f.1.d.2.1.b.f.7.5.7.f.8.0 PTR ns1.countryday.net.
>
> I would also be interested in hearing about the practices of others. Jeff.
>
> Jeffry A. Spain
> Network Administrator
> Cincinnati Country Day School
>
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