IP assignments for corporate networks

Dear Bjorn,

I'm using you and a swedish company (MoDo Data) as a test case to verify
the comon understanding and behaviour of Last Resort IP registries in Europe.
Before writing this message I had phone talks with people at
RIPE-NCC and then with Modo Data. Mr Roland Lindvall gave me his permission
to use their case in this discussion.

I agreed with Marten of the RIPE-NCC with something similar to:

--Start of suggested guidelines-----

The reasoning behind the following is to promote service provider based address
aggregation which is how the Internet works today.

A european multinational corporate network is the set of IP networks
which are used by a single company which has departments in several
different countries in Europe. Such network may be:

1- a private network not connected to the Internet  
2- a collection of independent networks each connected to the Internet
   in its own country
3- a set of networks centrally managed and connected to the Internet
   in a certain location in a country or eventually in more than one
   country
 
I know there could be more complicated cases but let's start simple...

So, how to assign addresses for a corporate network?

1- the advice is to use the Private Internet address space
2- the advice is to get addresses in each country either from a ISP
   or from the country last resort
3- the advice is to get addresses in a single country (i.e. the country
   where the corporate network is or will be connected to the Internet
   from the ISP if already chosen or from the last resort of that country
   if not. Eventually addresses can be assigned directly by RIPE-NCC.

--End of suggested guidelines-----

Then talking with mr Lindvall I knew that their case can be classified as 3:
MoDo Data is bulding its own europe-wide network based on private X25
carrying IP. But he stated in his request for addresses to be used in Italy:
"Our address coordinator in Sweden" - you - "told me that I have to get
addresses from the country they are going to be used in".

I told him that we will sort out the issue and get back to him with
an answer in a few days. He needs addresses to configure routers in
several countries.

Best regards.

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Antonio_Blasco Bonito                          E-Mail: bonito at nis.garr.it
GARR - Network Information Service      c=it;a=garr;p=garr;o=nis;s=bonito
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