[6bone] MRTD BGP withdrawal bug

[Robert J. Rockell]

If one allows bad prefixes to leak into one routing domain, and then
passes these prefixes on to anyone, that routing domain is as guilty as the
originator.

Long-term solution: De-peer with those that violate AUP for the 6bone.  This
scales nicely, and model exactly what people on the internet do today.

Thanks
Rob Rockell
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On Mon, 22 Jul 2002, Michel Py wrote:

->> Robert Kiessling wrote:
->> From looking at BGP view before and after an router running
->> MRTd. The AS in question annonced a path like "AS-guilty
->> AS-other some-long-path", while AS-other has a different path
->> for the prefix in question. I saw this for the same AS-guilty
->> and different AS-others.
->
->This is consistent with what was observed before, indeed.
->
->
->>> So far, my feeling is that the issue has been solved by "let's reboot
->>> the router and see what happens" method.
->
->> Right, but that's not an acceptable long-term solution. IMHO
->> either AS-guilty fixes the problem,
->
->> or their peers have to fix it for them.
->
->This is not an acceptable long-term solution either.
->
->So what can we do? Even if we declare MRTd illegal, enforcing it would
->be another story. I vaguely tried to define a generic route-map for
->these with no success either.
->
->Michel.
->
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