Re: IPv6 BGP prefix filters

[joel jaeggli <joelja () bogus com>]

On 1/16/17 2:01 PM, Alistair Mackenzie wrote:
> Hi,
>
> So recently I've come across an issue with a large ISP announcing a /22 and
> /25 of IPv6 space. We are currently filtering <28 and >48 which until now
> has worked fine for us.
>
> What are others using as their prefix filters in the DFZ?

Currently the shortest prefix delegation to an RIR is a /12,  the
assigned global uni-cast range at present all fits within 2000::/3.

I currently apply   < 20,  > /48 but I also have recourse to default.

> Thanks,
> Alistair

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