Thoughts about ipv6 white listing

Tore Anderson tore.anderson at
Sun Dec 5 00:09:42 CET 2010

* George Bonser

> The clients either will or will not have v6.  If they do not have v6,
> they will request an A record.  If they have v6 they will request an
> AAAA record.

Don't be so sure about that.  It depends on whether or not the
application is passing the AI_ADDRCONFIG flag to getaddrinfo().
Mozilla Firefox, for instance, does not, and will therefore request AAAA
records even though the machine only has link-local IPv6 addresses.


Tore Anderson
Redpill Linpro AS -
Tel: +47 21 54 41 27

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