On Thu, May 24, 2001 at 07:25:14PM -0700, Steve Gibbard wrote:
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 space?
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
-------------------------------------------------------------------------------- Steve Gibbard scg@gibbard.org
Why go through all that mess? You call up their new upstream, say you're a representative of XYZ, and customer ABC does not have permission to announce your netblocks. I know InterNAP requires that they get consent from the netblock contact, I don't know about other companies. And so it doesn't happen as a prank, while on phone with them, tell the person to send an e-mail to the netblock contact, you open up the e-mail and read it back to them for verification, it seriously can't be that complicated. kthkxbye. -- Omachonu Ogali missnglnk@informationwave.net http://www.informationwave.net