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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