<div dir="ltr"><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large">Hello Francis, good morning. I have resolved the issue, scouring through the logs I found a legend that read something like "Kea dropped package because it is Unicast" so I investigated the options of perfdhcp and reformulated how I call the script.<br><br>Before: <span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline" id="gmail-docs-internal-guid-f1b5109a-716f-ab86-5de1-79d65102f082">[root@geek njp]# /opt/kea/sbin/perfdhcp -6 -e address-only 2001:db8:beef:55:2 </span><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large">After: <span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline" id="gmail-docs-internal-guid-f1b5109a-716f-ab86-5de1-79d65102f082">[root@geek njp]# /opt/kea/sbin/perfdhcp -6 -l eth0<br><br> </span></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large">It works now but I still do not completely understand why the client was sending packages on unicast to the server and not responding. <span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline" id="gmail-docs-internal-guid-f1b5109a-716f-ab86-5de1-79d65102f082"><br><br></span></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline" id="gmail-docs-internal-guid-f1b5109a-716f-ab86-5de1-79d65102f082">Thank you for everything<br></span></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline" id="gmail-docs-internal-guid-f1b5109a-716f-ab86-5de1-79d65102f082"><br></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 8, 2017 at 11:21 AM, Francis Dupont <span dir="ltr"><<a href="mailto:fdupont@isc.org" target="_blank">fdupont@isc.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">Nicolas Javier Pantazis writes:<br>
> Hello Francis, good morning. Thank you for the reply, they do match here is<br>
> the output of the dhcpdump:<br>
><br>
</span><span class="">> 19:11:48.300621 IP6 2001:db8:beef:55::3.dhcpv6-<wbr>client ><br>
> 2001:db8:beef:55::2.dhcpv6-<wbr>server: dhcp6 solicit<br>
<br>
</span>=> and lsof? Kea won't listen on 2001:db8:beef:55::2 by default.<br>
<span class=""><br>
> The issue is very strange that is why I need your help. The strange thing<br>
> is that perfdhcp worked perfectly for ipv4.<br>
<br>
</span>=> DHCPv4 uses (by default, you can change the service socket type)<br>
a BPF/LPF/etc socket, DHCPv6 uses standard UDP.<br>
<br>
Regards<br>
<br>
Francis Dupont <<a href="mailto:fdupont@isc.org">fdupont@isc.org</a>><br>
<span class=""><br>
> > Can you check solicits are sent to an address the server is listen to?<br>
> > (you should have the destination address in your dump, for the server<br>
> > lsof displays open file (including socket) details).<br>
> > If not match, you should modify the perfdhcp argument or the Kea server<br>
> > config (cf interface configuration in DHCPv4 server guide).<br>
<br>
</span>PS: you can have a kernel filter (ip6tables on Linux) which drops<br>
incoming packets. Usually tcpdump/wireshark/etc can see them but<br>
they are not delivered to the server.<br>
</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Nicolas Javier Pantazis<br><pre>---------- __o
-------- _`\<,_ "The bike wants to go fast! and brakes are death!"
------- (*)/ (*)
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