Claudio Jeker wrote:
On Fri, Oct 07, 2005 at 04:35:51PM +0200, Olivier Mehani wrote:
On Fri, 7 Oct 2005 16:09:28 +0200
Lio Goehrs <[EMAIL PROTECTED]> wrote:
The address space can be given by one of the provider.
But then, I understand that the route to these addresses will go
through the address-providing ISP. Correct ?
No. You need provider independent address space for such setups plus a AS
number. At least for IPv4 it goes this way. In IPv6 land it is no longer
possible to get provider independent address space and so multihoming is
broken and this makes IPv6 unusable in the real life.
You don't have to have PI space at all, many providers will let you
punch a hole in their PA allocation if you do not have your own PA
allocation (Not technically a great practice, but it adds the same extra
NLRI to the routing table as PI space would). However I am guessing in
this situation that BGP is going to be overkill and the providers
wouldn't configure it unless we're talking about leased lines/E1, T1
etc. etc.
Thanks,
Karl Austin
