Public shaming list for ISPs announcing other ISPs IP space bymistake

Danny McPherson danny at
Thu Aug 14 22:32:21 CDT 2008

On Aug 14, 2008, at 8:42 PM, Jean-François Mezei wrote:

> 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.

Fine idea - how do they build these filter lists?

> "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
> networks.

Tragedy of the commons...


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