IPv6 Prefix announcing

William Herrin bill at herrin.us
Tue Apr 26 12:13:11 CDT 2011


On Tue, Apr 26, 2011 at 12:30 PM, Nick Olsen <nick at flhsi.com> wrote:
> Greetings NANOG,
> I've always been under the impression its best practice to only announce
> prefixes of a /24 and above when it comes to IPv4 and BGP.
> I was wondering if something similar had been agreed upon regarding IPv6.
> And if That's the case, What's the magic number? /32? /48? /64?

Hi Nick,

At this point, you can depend on being able to announce a /32 from any
block and a /48 from an RIR block designated for end-user assignments.
Many carriers have more permissive policies but all of any consequence
now allow at least that.

Regards,
Bill Herrin


-- 
William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004




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