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IPv6 filtering (was Re: IPv6 internet broken,cogent/telia/hurricane not peering)
- From: Marco Hogewoning
- Date: Mon Oct 12 15:24:27 2009
On Oct 12, 2009, at 9:14 PM, Jack Bates wrote:
Dan White wrote:
Reputation lists will just be on the /64, /56 and /48 boundaries,
rather
than IPv4 /32.
And then people will scream because someone setup a layout that
hands out /128 addresses within a /64 pool.
There is that chance yes especially from access networks which use RA.
As this thread has drifted off topic any way, would it for instance be
a good idea to simply not accept mail from hosts that clearly use
autoconfig ie reject all smtp from EUI-64 addresses. Of course not a
wise idea for your own outbound relays which should handle mail from
your customers but on the incoming side it might as well save a lot of
headache and there is no need to keep track of which /64 are access
networks.
Just a few cents,
MarcoH
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