Cogent IPv6

Owen DeLong owen at
Thu Jun 9 21:09:44 UTC 2011

On Jun 9, 2011, at 9:56 AM, Iljitsch van Beijnum wrote:

> On 9 jun 2011, at 10:32, Owen DeLong wrote:
>> You can actually use DHCPv6 to assign addresses to hosts dynamically
>> on longer than /64 networks.
> The trouble is that DHCPv6 can't tell you the prefix length for your address, so either set up the routers to advertise this prefix (but without the autonomous autoconfiguration flag set) or prepare for surprising results.
> I say: life is too short to fiddle with this kind of stuff, just use /64, at least for everything that isn't a point-to-point link or loopback address.

I don't disagree with you, but, the claim that you can only choose between
SLAAC and Static and therefore only use /64 for dynamic addressing wasn't


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