[address-policy-wg] Any-cast or uni-cast solutions
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Geoff Huston
gih at apnic.net
Fri May 25 06:12:29 CEST 2012
On 23/05/2012, at 10:41 AM, Tore Anderson wrote: > * Randy Bush > >>> You can announce them anywhere you like. But you cannot assign them to >>> end users outside outside of the region. >> >> really? so i have a /16 from ncc and i spread it over pops in ams, lon, >> and nyc, but i can not have bgp-speaking customers in that address space >> in nyc? if true, that is soooo broken. > > That is my understanding, at least. I asked this question to the RIR > panel at the mic in Rome, whether and APNIC region ISP could (post APNIC > depletion) set up a LIR in the RIPE region (or any other region), and > allocate addresses from there and assign them to end users in their home > region. The answer (which came from Geoff Huston IIRC) was something > along the lines of «no, you have to assign the addresses in the service > region from which they were allocated». no - I don't think it was me (unless of course someone pops up with a video recording of me saying exactly that RIPE meeting! :-) ) I am personally of the school of thought that believes that addresses can be used anywhere on or off the planet, irrespective of which RIR provided the original block allocation or assignment. I don't think any other address management regime makes efficient use of either our common routing system or the underlying address plant. > If this was not the case, I would not have expected the APNIC depletion > from significantly slow down the global rate of IPv4 delegations, only > that it would simply shift from the APNIC region to other regions as > IPv4-hungry Asian providers started allocating from other regions. But > looking at http://www.potaroo.net/tools/ipv4/fig09.png for example, this > does not appear to have happened. I was anticipating such a shift in demand myself, and I too am slightly surprised it has not happened. On the other hand I understand that if APNIC sees a member request from an organization with a home address from outside of the APNIC region there is a typical exchange of "have you considered using <xxx> as your RIR, as you appear to be outside of our regional service zone?" A typical response may be along the lines of "ah yes, but we intended to deploy these addresses in our in-region network". So I suspect that there is a defacto assumption made by many folk about the regional constraints of the use of addresses, but as far as I am aware it is not a rule that is applied by the routing system itself. regards, Geoff (speaking personally in this case, and I'm probably wrong anyway!)
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