[arin-ppml] Downstreams, needs less than /24 and PI availability

Martin Hannigan hannigan at gmail.com
Thu Oct 6 15:15:10 EDT 2011

There are some symptoms of v4 exhaustion emerging and I think that it
is reasonable to treat them.

Any thoughts?


Networks that have assigned resources utilized less than 80% in
aggregate must provide their single homed downstream connected
networks IPv4 addresses to number their network into even IF the
downstream has their own provider independent address space AND their
need is longer than /24. ARIN, upon request of a network refused
addresses as a single-homed downstream with provider independent
addresses AND a need longer than /24 must initiate a Section 12 audit
upon a reasonable belief that a violation of this policy has occurred.

Rationale: Promote overall NRPM compliance capability for "all"
networks, promote efficient use of v4 addresses and to reduce table

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