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<p class="MsoNormal"><span style="font-size:11.0pt">Greetings,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I am working on a home lab as concept design for DHCP ipv6. I have two Rocky 8 VMs under PVE, one is server which installed kea-dhcp6 and the other is the client. I used the dummy configuration in the Kea
manual with a few changes on T1 and T2 but the same IP information. But I don’t see the client got any IPv6 from the server. I did the packets capture using tcpdump. I can see the solicit and advertise packets, but in the advertise packet, I see status message:
Server could not select subnet for this client. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I did Google and found previous discussions email from this mailer, so I added the interface-id configuration under “subnet6” section. But still, I see the same error message. I have opened the port for DHCPv6
on server side, also there’s IPv4 connectivity between the server and the client with static Ips.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Can anyone provide some insights? Thank you all!
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Configuration:<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">{<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#6A9955;mso-ligatures:none"># DHCPv6 configuration starts on the next line</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"Dhcp6"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: {<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#6A9955;mso-ligatures:none"># First we set up global values</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"valid-lifetime"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: 400,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"renew-timer"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: 100,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"rebind-timer"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: 200,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"preferred-lifetime"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: 300,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#6A9955;mso-ligatures:none"># Next we set up the interfaces to be used by the server.</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"interfaces-config"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: {<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"interfaces"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: [
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"ens18"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> ]<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> },<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#6A9955;mso-ligatures:none"># And we specify the type of lease database</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"lease-database"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: {<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"type"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">:
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"memfile"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"persist"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: true,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"name"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">:
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"/var/lib/kea/dhcp6.leases"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> },<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#6A9955;mso-ligatures:none"># Finally, we list the subnets from which we will be leasing addresses.</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"subnet6"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: [<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> {<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"id"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: 1,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"subnet"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">:
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"2001:db8:1::/64"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"pools"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">: [<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> {<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"pool"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">:
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"2001:db8:1::1-2001:db8:1::ffff"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> }<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> ],<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"interface-id"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">:
</span><span style="font-size:9.0pt;font-family:Menlo;color:#CE9178;mso-ligatures:none">"ens18"</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> }<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"> ]<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#6A9955;mso-ligatures:none"># DHCPv6 configuration ends with the next line</span><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">}<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#1F1F1F"><span style="font-size:9.0pt;font-family:Menlo;color:#CCCCCC;mso-ligatures:none">}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Packets capture info: <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Frame 2: 174 bytes on wire (1392 bits), 174 bytes captured (1392 bits)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ethernet II, Src: 42:f1:11:7a:0d:e7 (42:f1:11:7a:0d:e7), Dst: c6:0b:eb:d1:72:98 (c6:0b:eb:d1:72:98)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Internet Protocol Version 6, Src: fe80::40f1:11ff:fe7a:de7, Dst: fe80::c40b:ebff:fed1:7298<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">User Datagram Protocol, Src Port: 547, Dst Port: 546<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">DHCPv6<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Message type: Advertise (2)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Transaction ID: 0x2f54ab<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Client Identifier<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Server Identifier<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Identity Association for Non-temporary Address<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Option: Identity Association for Non-temporary Address (3)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Length: 64<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> IAID: ca53095a<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> T1: 0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> T2: 0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Status code<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Option: Status code (13)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Length: 48<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <b><span style="color:red">Status Code: NoAddrAvail (2)</span><o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <b><span style="color:red">Status Message: Server could not select subnet for this client<o:p></o:p></span></b></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-ligatures:none">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-ligatures:none">Yu<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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