16 Jan
2017
16 Jan
'17
5:21 p.m.
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