ISP filter policies

Tue Jul 26 14:02:59 UTC 2005

On Tue, 26 Jul 2005 12:29:59 +0200, Arnold Nipper said:
> 
> On http://www.nanog.org/filter.html there is a small list of ISP filter 
> policies.
> 
> Does anyone know a more comprehensive and up-to-date list? Especially: 
> are all ISP filtering according to the minimum allocation?

*all* ISP?  At best, you'll find "most", or "enough do it that trying to
advertise less than the minimum won't work well" - which is what you really
care about.  About the only thing that "all" ISPs agree on are the de-facto
requirements to plug the router into an appropriate electrical supply - there's
probably a lot of mom&pop ISPs out there that don't do any filtering of BGP
because they're so small that they don't need to talk BGP to their upstream...
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