-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2004-06-22, at 12.29, Gert Doering wrote:
On Tue, Jun 22, 2004 at 11:08:09AM +0100, Carlos Morgado wrote:
This doesn't fly. He can't set his own routing policy and he can't multihome. If he changes the single upstream his customers needs to renumber. As of today, "more-specific BGP multihoming" works. So he *can* set his own routing policy.
Can you personaly garantee the upstream suplying the space won't aggregate his prefix ?
And if he does, so what? He will loose traffic, as the *other* ISP will make the more specific visible world-wide, and thus no paid-for packets will arrive at the aggregating upstream.
Using a more-specific block out of PA space is a well-established technique in IPv4 today. It's not "beautiful", but it works better than other variants.
Well, in todays IPv4 world people are also taking PA blocks and advertise them as individual /24s, just to implement policy. I am not sure that is so much better than just giving the LIRs a /32. Those who are to small to become LIRs? Though luck. - - kurtis - -----BEGIN PGP SIGNATURE----- Version: PGP 8.0.3 iQA/AwUBQNgcxKarNKXTPFCVEQKErwCdEMKuZqc8p28+Balrh6FLurHR6boAn2SQ MYTctDKhAqzgdRCIcn4XhOyX =y9Kr -----END PGP SIGNATURE-----