The company I work for have branches all over Europe and data centers in Sweden and Germany. In Sweden all sites are connected to each other via point-to-point links as well as each connected to Internet. Outside Sweden the sites are only connected to Internet (with IPsec links to Sweden).
We want to roll out multihoming on all sites and thus will apply for a RIPE membership to get one of the last IPv4 /22 networks left as well as an AS number.
Is it provider-aggregatable address spaces that RIPE assigns? Can we do multihoming with these addresses? Can I later switch one or several of my providers?
Can you subnet you assigned address space and use it on two "isolated" networks. I.e. can we have a subnet with transit providers in Germany and another subnet with other providers in Sweden? Or do I need one AS number for each isolated network? If so, can I get multiple AS numbers?
All help/input would be grately appreciated!
Thanks and regards, Par