On Sep 23, 2014, at 2:34 PM, Roland Dobbins <rdobb...@arbor.net> wrote:

> 
> On Sep 24, 2014, at 12:16 AM, Florian Weimer <f...@deneb.enyo.de> wrote:
> 
>> Fragmentation in IPv4 is inherently insecure.
> 
> Conceptually, yes, it's a Very Bad Idea.  But given the realities of the 
> TCP/IP we have, it's important that network operators understand that they 
> can't filter out non-initial fragments, or they'll break the Internet for 
> their customers.
> 
But what about the customers that use recursive nameservers, does it make sense 
for them to block fragments at the edge and even on the other side of the link 
at the edge?

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