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List: bind-users
Subject: Re: Filtering IPv6 AAAA records?
From: Mark Andrews <marka () isc ! org>
Date: 2012-07-25 12:15:35
Message-ID: 20120725121536.0A2FD22FD7CC () drugs ! dv ! isc ! org
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In message <CAEBgQMzfH2kvc7zYNi=eDewwq_TjJF8OfM9GKrq-3m7obqiS2Q@mail.gmail.com>
, Paul Reilly writes:
>
> Thanks all - the "filter-aaaa-on-v4" has worked well in testing.
>
> In terms of "why?" we do actually have native IPv6 upstream, and some parts
> of the network are fully IPv6 enabled, and access the internet on IPv6. But
> some areas are only IPv4. I need to make sure these IPv4 only parts of the
> network do not try and access IPv6 internet hosts - as they are blocked at
> the firewall.
Then please make sure that the firewall returns ICMPv6 unreachables or
spoofs RST for TCP. Just dropping packets is guarenteed to result in
bad behaviour.
> Paul
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
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