[dns-operations] ip id from servers

[Florian Weimer]

* Stefan Schmidt:

> As k.root-servers.net is also NSD and this list of IP addresses by
> Randy powers a lot of queries i think we should still care, however
> most recursive nameserver implementations won't take the ip id
> into account i suppose. I wonder if operating systems care.

The K root has recently switched to DF=0 answers (using the most
recent NSD version), in preparation for the signed root.  This
activated IP ID randomization as a side effect.

-- 
Florian Weimer                <fweimer at bfk.de>
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