It is my belief (however misplaced it may be) that RFC 4193
(http://www.ietf.org/rfc/rfc4193.txt) saves us from that particular
issue? At least in terms of needing each individual machine to have a
firewall protecting itself from the internet at large.

Of course, if you run iptables on all of your machines now, then yes,
you'll still want the stateful inspection of IPv6.

--Matt


On Tue, Nov 16, 2010 at 5:51 PM, Joe Pruett <[email protected]> wrote:
> On 11/13/2010 05:44 PM, Paul Graydon wrote:
>> I'm uhhmming and aahhing about this one.  Certainly don't see any killer
>> features that make it worthwhile me putting effort in to upgrading
>> existing boxes, that said I'm hoping to retire some SuSE boxes at some
>> point in the next 6-9 months and replace them with new hardware and
>> CentOS (like most of our infrastructure).  It would be logical to go
>> CentOS 6 for longevity purposes, but I do rather like standardisation
>> where possible.
> the biggest thing i've been waiting for (and i hope it gets backported
> to rhel5) is stateful ipv6 packet filtering.  without that it makes it
> hard to really be able to start utilizing ipv6 on the big scary internet.
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