Public shaming list for ISPs announcing other ISPs IP space bymistake

Jean-François Mezei jfmezei at
Thu Aug 14 21:42:04 CDT 2008

Pardon my ignorance here, but wouldn't it be much simpler if the so
called "tier 1" networks were to do the filtering work so that none of
downstream BGP peers would see the bad announcements ?

If some network in italy sends out some bogus route for a site, this
should be blocked by a few tier 1 networks instead of by everybody at
the bottom of the tree. Yeah, that would mean that folks in italy and
whoever would have direct connections to that italian network would
accept those bad BGP announcements, but the rest of the world would
continue to work.

"tier 1" networks like to brag about their importance within the
internet, perhaps filtering bad announcments should be a responsability
assigned to them, and which would further differentiate them from lesser

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