In einer eMail vom 11.01.2010 23:17:14 Westeuropäische Normalzeit schreibt [email protected]:
Heiner, I guess I'm not clear on what you mean. Do you mean that we should restrict access to a network or restrict access to a mapping? All the existing tools continue to exist. You can filter packets based on IP address or whatever you filter on today. This holds for ITRs, ETRs, or any other R. And so I don't understand the problem. Eliot Eliot, I think, meanwhile, I have found out the solution to the problem myself. ISP B doesn't want to be transit for flows from ISP A to some host inside ISP C. The router inside ISP A will request some ALT-server for the mapping between that host's prefix and the respective ETR-RLOC. He will definitely get that mapping information (no filtering). However, if ISP B does not forward to ISP A that he has reachability to this ETR-RLOC (e.g.for whichever business reasons) then ISP B cannot be used for transit. Because I didn't see this (as of last sentence) I imagined that a truly weird filtering were to be installed who is and who is not allowed to receive the EID-to-RLOC mapping info. Sorry, Heiner
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