Richard Almeida wrote:
We have lots of registries, as we've needed different CIDR blocks to put in different ASNs (most others seem to just break PA space if they want to do this)
We own AS5378 - original INS backbone AS6660 - INS USA network AS6765 - Wisper network (recently aquired) AS6889 - Wisper USA network (recently aquired)
What we have as a result is 3 RIPE registries, and 1 ARIN one. AS6889 doesnt originate anything, but uses space announced in AS6765 - which of course causes problems for them - we will either get another ARIN registry or migrate 6889 out totally.
The 3rd RIPE one is for a subsidiary, that we know will one day talk BGP and thus needed to keep address space seperate from AS5378 - the growth rate of that business is substantially different to AS5378's address growth requirements
So, summary, theres a case where multipe CIDR blocks are needed where one registry has multiple ASNs for routing policy reasons - aswell as the cases that Guy has described. So much of a case that we're willing to pay for 3 medium registries and 1 ARIN one ...
Similarly, EUnet Communications Services pays the RIPE NCC for 6 large registries (as an "n=6" supernational registry) and (as n >= 5) we get a maximum allocation of 9 /16's which we distribute between EUnet's various national operations (In Austria, Belgium, Bulgaria, Switzerland, Egypt, Spain, Finland, France, Ireland, Lithuania, Luxembourg, Latvia, Malta, Norway, Poland, Portugal, Romania, Sweden, Slovenia, Slovakia, Syria and Tunisia. Other national EUnet's maintain their own small, medium or large registries) subject to normal RIPE rules. Richard, I don't understand the necessity of opening registries with both ARIN and the RIPE NCC. What advantage does this give you (unless, perhaps, you're trying to get more than your fair share of IP addresses... ;-) ? James ----- ___ - James Aldridge, Senior Network Engineer, ---- / / / ___ ____ _/_ -- EUnet Communications Services BV --- /--- / / / / /___/ / --- Singel 540, 1017 AZ Amsterdam, NL -- /___ /___/ / / /___ /_ ---- Tel: +31 20 530 5327; Fax: +31 20 622 4657 - ----- 24hr emergency number: +31 20 421 0865