On Wed, Nov 14, 2012 at 8:10 AM, Ben S. Butler <Ben.Butler@c2internet.net> wrote:
So what is the "best" answer.
1> Don't advertise islands of space under assignment minimum, without providing a covering aggregate route?
2> Don't use strict filters, they don't work well and de-agragegation with IPv6 is going to be a problem?
3> Don't use filters, generate it from an IRR?
Given there is no "right" answer what is considered to be the best fit one?
IMHO: 4) Use mild filters (e.g. allow a /32 to be disaggregated to /36's) and send a polite email to the POC to the effect of, "Please beware that because you have not offered a covering route matching your allocation, your IPv6 network is not reachable from ours. IPv6 is not IPv4: end users requiring /48s for multihoming should get them directly from the RIR. For complete Internet connectivity, we strongly encourage you to offer a covering route." Regards, Bill Herrin -- William D. Herrin ................ herrin@dirtside.com bill@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004