[ppml] [address-policy-wg] Those pesky ULAs again
Iljitsch van Beijnum
iljitsch at muada.com
Fri Jun 1 12:44:18 EDT 2007
On 30-mei-2007, at 18:22, Paul_Vixie at isc.org wrote:
> first, ARIN does not currently consider routability when allocating
> address space.
Wherever possible, address space should be distributed in a
hierarchical manner, according to the topology of network
infrastructure. This is necessary to permit the aggregation of
routing information by ISPs, and to limit the expansion of Internet
This goal is particularly important in IPv6 addressing, where the
size of the total address pool creates significant implications for
both internal and external routing.
The whole "routing is not guaranteed" thing is obviously in there
because of the lawyers since ARIN can't force ISPs to route any given
block of address space, not because routability isn't a goal.
> non-routable space comes from ietf/iana, not the RIRs.
> so, for ARIN to start allocating nonroutable space is a big change.
Keeping the RIRs out of the ULA business would nicely avoid any
problems resulting from that. Just let the domain sell the ip6.arpa
domains in question.
> (heck, maybe the old site-local prefix is still available.)
Existing implementations and deployments MAY continue to use this
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