<div dir="ltr"><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large">Hello Francis, good morning. Thank you for the reply, they do match here is the output of the dhcpdump:<br><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large">(Consider that client is ::3 and server is ::2 )<br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large"><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" id="gmail-docs-internal-guid-f1b5109a-6183-b5d4-8bef-589332b9532a"><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">19:11:48.300472 IP6 2001:db8:beef:55::3 > ff02::1:ff00:2: ICMP6, neighbor solicitation, who has 2001:db8:beef:55::2, length 32</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300531 IP6 2001:db8:beef:55::2 > 2001:db8:beef:55::3: ICMP6, neighbor advertisement, tgt is 2001:db8:beef:55::2, length 32</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300621 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300635 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300645 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300660 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300670 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300693 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300717 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">19:11:48.300749 IP6 2001:db8:beef:55::3.dhcpv6-client > 2001:db8:beef:55::2.dhcpv6-server: dhcp6 solicit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">The issue is very strange that is why I need your help. The strange thing is that perfdhcp worked perfectly for ipv4.</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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">Thank you again</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><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"><br></span></p></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 7, 2017 at 9:13 PM, 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">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>
Regards<br>
<br>
Francis Dupont <<a href="mailto:fdupont@isc.org">fdupont@isc.org</a>><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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