On 30/12/2016 15:47, John Levine wrote: > In article <m2poka5e9p.wl-randy@xxxxxxx> you write: >>> We do have the technology to provide a CERT to every customer. See >>> SIDR. >> >> see frequent residential address reassignment > > That's not really a problem, since vanishingly few resi customers are > multihomed. The problem occurs with customers who are big enough to > be multihomed but not so big that they have a staff that knows all > of the magic of BGP and expensive routers. Which is exactly why we have to make multi-prefix multihoming work out of the box. Which is why we have RFC 7157 and RFC 8028 and draft-ietf-rtgwg-dst-src-routing, and we're not done yet. Brian