<div dir="ltr">At this point, several providers are using EDNS client subnet. That's probably the most common option, by several orders of magnitude. </div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Jun 16, 2013 at 1:43 PM, Stephane Bortzmeyer <span dir="ltr"><<a href="mailto:bortzmeyer@nic.fr" target="_blank">bortzmeyer@nic.fr</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Does anyone know of a survey of the actual use of EDNS options, as<br>
seen by authoritative name servers? A quick glance at the traffic of<br>
.FR name servers seem to indicate that they are almost never used (a<br>
few 3, NSID and a few 5, DAU, even if the RFC on DNSSEC signaling of<br>
algorithms is not yet published).<br>
<br>
Does anyone has good data?<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>Colm
</div>