If I remember correctly, ARIN does NOT take in account ISP filtering for any polices and does not guarantee routability of any allocations.<br><br><div class="gmail_quote">On Fri, Jun 13, 2008 at 2:38 PM, Jason Schiller <<a href="mailto:schiller@uu.net">schiller@uu.net</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Sun, 8 Jun 2008, Leo Bicknell wrote:<br>
<br>
> First we need to think about the different cases:<br>
><br>
> 1) How many networks prefix filter customers...<br>
> strictly based on their allocation?<br>
> allowing between their allocation and a /24?<br>
> allowing anything inside their allocation?<br>
><br>
> 2) How many networks accept longer routes from customers than they will<br>
> pass along to their peers?<br>
><br>
> 3) How many networks prefix filter peers...<br>
> strictly based on their allocation?<br>
> allowing between their allocation and a /24?<br>
> allowing anything inside their allocation?<br>
> allowing based on RIR published minimum allocation sizes?<br>
><br>
4) What is you ASN<br>
<br>
1) Prefix filter on customers to allow anything inside their allocation<br>
<br>
2) Accept more specific routes from customers, only pass along less<br>
specific than /24<br>
<br>
3) Accept only less specific than /24 from Peers<br>
<br>
4) 701<br>
<br>
<br>
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</blockquote></div><br>