<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">For fingerprinting, don’t you also need to know the order in which the options are requested?<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Aug 22, 2019, at 5:10 AM, Munroe Sollog <<a href="mailto:mus3@lehigh.edu" class="">mus3@lehigh.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><div dir="auto" class="">We currently use the dhcp options a client requests to fingerprint the device. </div></div><div class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Aug 22, 2019 at 7:54 AM Tomek Mrugalski <<a href="mailto:tomasz@isc.org" class="">tomasz@isc.org</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 22.08.2019 13:16, Munroe Sollog wrote:<br class="">
> Just a bump to see if any progress has been made in allowing servers<br class="">
> to log the options a client requests.<br class="">
Thanks for bringing this up. That's interesting and a bit dangerous<br class="">
request, especially if misconfigured.<br class="">
<br class="">
What exactly would you like to see in the log? Content of PRL or ORO<br class="">
options, i.e. a list of options being requested or the actual content of<br class="">
all options the client sent in its messages?<br class="">
<br class="">
Take a look at the loggers we currently have:<br class="">
<a href="https://kea.readthedocs.io/en/latest/arm/logging.html#the-name-string-logger" rel="noreferrer" target="_blank" class="">https://kea.readthedocs.io/en/latest/arm/logging.html#the-name-string-logger</a><br class="">
<br class="">
In particular, you may look at kea-dhcp{4,6}.packets. If you're trying<br class="">
to debug a client that his packets are rejects,<br class="">
kea-dhcp{4,6}.bad-packets is something to look at. Also, there's<br class="">
kea-dhcp4.options logger.<br class="">
<br class="">
If none of those work for you, can you open an issue in gitlab?<br class="">
<a href="https://gitlab.isc.org/isc-projects/kea/issues" rel="noreferrer" target="_blank" class="">https://gitlab.isc.org/isc-projects/kea/issues</a><br class="">
<br class="">
Thanks,<br class="">
<br class="">
Tomek<br class="">
_______________________________________________<br class="">
Kea-users mailing list<br class="">
<a href="mailto:Kea-users@lists.isc.org" target="_blank" class="">Kea-users@lists.isc.org</a><br class="">
<a href="https://lists.isc.org/mailman/listinfo/kea-users" rel="noreferrer" target="_blank" class="">https://lists.isc.org/mailman/listinfo/kea-users</a><br class="">
</blockquote></div></div>-- <br class=""><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class="">Munroe Sollog<div class="">Senior Network Engineer</div><div class=""><a href="mailto:munroe@lehigh.edu" target="_blank" class="">munroe@lehigh.edu</a></div></div></div>
_______________________________________________<br class="">Kea-users mailing list<br class=""><a href="mailto:Kea-users@lists.isc.org" class="">Kea-users@lists.isc.org</a><br class="">https://lists.isc.org/mailman/listinfo/kea-users<br class=""></div></blockquote></div><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Victoria Risk</div><div class="">Product Manager</div><div class="">Internet Systems Consortium</div><div class=""><a href="mailto:vicky@isc.org" class="">vicky@isc.org</a></div><div class=""><br class=""></div></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
</div>
<br class=""></body></html>