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Re: Query: What policies do backbone providers use to determine IP ownership?
From: Steve Gibbard <scg () gibbard org>
Date: Thu, 24 May 2001 19:25:14 -0700 (PDT)

On Wed, 23 May 2001 jlewis () lewis org wrote:

Here's a related question.  Suppose provider A has a customer C who
multihomes with a connection to A and provider B.  C uses IP's assigned by
A.  C terminates service with A...but keeps announcing A's space to B.  B
propogates the routes to their peers.  B and C ignore requests that they
stop using A's space and renumber into B's.  How does A reclaim their

One obvious solution is dueling routes...A could announce more specific
routes, fouling things up for B and C hoping this will serve as
encouragement for C to renumber.

And then C could announce more specific routes, and so forth, although
you'll run into filters and start being ignored at some point.

That's really the sort of problem better resolved by lawyers than
by engineers.


Steve Gibbard                           scg () gibbard org      

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