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Re: [lisp-interest] LISP-ALT and security



On 7/31/08 9:58 AM, Erik Nordmark allegedly wrote:
Roque Gagliano wrote:

the problem is that what you want to sign is the authorization for a set of RLOC receive traffic destinated for a particular EID prefix, and you want the RLOC to probably change in time. That is not different that the ROA case, where you want the origin ASN to change in time.

I've always been thinking about it the other way around i.e., what we want to check is the authorization to direct an EID prefix to whatever RLOCs it so pleases.

I haven't thought about the tradeoffs between the two approaches though.

IMHO a Map-Reply sender should be able to map a prefix to any set of RLOCs it pleases, as long as it has the authority to map the prefix at all.