<div dir="ltr">Hi Niall,<br><br>After I use this dhcpd6.conf, the homeware(it's a router actually) always obtain the IP 2011:1:2:2::1, may I ask do you know how to refine the dhcpd6.conf to make it obtain the IP such as 2011:1:2:2::7?<br><br><i>default-lease-time 640;<br>max-lease-time 700;<br>log-facility local7;<br><br>subnet6 2011:1:2::/48 {<br><br> # Range for clients<br> range6 2011:1:2::111 2011:1:2::234;<br><br> # Additional options<br> option dhcp6.name-servers 2011:1:2::2012;<br> option dhcp6.domain-search "ipv6.domain.example";<br><br> # Prefix range for delegation to sub-routers<br> prefix6 2011:1:2:2:: 2011:1:2:2:: /64;<br><br> # Example for a fixed host address<br> host specialclient {<br> host-identifier option dhcp6.client-id 00:01:00:01:4a:1f:ba:e3:60:b9:1f:01:23:45;<br> fixed-address6 2011:1:2::110;<br><br> }<br>}</i><br><br>Thanks,<br>Reed<br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Dec 5, 2016 at 10:18 AM, Reed Xia <span dir="ltr"><<a href="mailto:huaqin2005@gmail.com" target="_blank">huaqin2005@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi <span style="font-size:12.8px">Niall,</span><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">Yes I mean </span><span style="font-size:12.8px">2001::7. </span><span style="font-size:12.8px">Thanks for help point out the problem! I learn that it need IPv6 prefix, I referred to a dhcpd6.conf from Internet and looked it worked.</span></div><div><span style="font-size:12.8px"><br></span></div><div><i><span style="color:rgb(0,0,0);font-family:arial;font-size:14px">default-lease-time 640;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px">max-lease-time 700;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px">log-facility local7;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px">subnet6 2011:1:2::/48 {</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> # Range for clients</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> range6 2011:1:2::111 2011:1:2::234;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> # Additional options</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> option dhcp6.name-servers 2011:1:2::2012;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> option dhcp6.domain-search "ipv6.domain.example";</span><span class=""><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> # Prefix range for delegation to sub-routers</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"></span><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> prefix6 2011:1:2:2:: 2011:1:2:2:: /64;</span><span class=""><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> # Example for a fixed host address</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"></span><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> host specialclient {</span><span class=""><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> host-identifier option dhcp6.client-id 00:01:00:01:4a:1f:ba:e3:60:b9:<wbr>1f:01:23:45;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"></span><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> fixed-address6 2011:1:2::110;</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"> }</span><br style="word-break:break-word;color:rgb(0,0,0);font-family:arial;font-size:14px"><span style="color:rgb(0,0,0);font-family:arial;font-size:14px">}</span></i><span style="font-size:12.8px"></span><span style="font-size:12.8px"><br></span></div><div><i><span style="color:rgb(0,0,0);font-family:arial;font-size:14px"><br></span></i></div><div><i><span class=""><div><font color="#000000" face="arial"><span style="font-size:14px">root@reed-Lenovo:/etc/dhcp#<b> /root/dhcp-4.3.4/server/dhcpd -6 -d -cf /etc/dhcp/dhcpd6.conf eth0</b></span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Internet Systems Consortium DHCP Server 4.3.4</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Copyright 2004-2016 Internet Systems Consortium.</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">All rights reserved.</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">For info, please visit <a href="https://www.isc.org/software/dhcp/" target="_blank">https://www.isc.org/software/<wbr>dhcp/</a></span></font></div></span><div><font color="#000000" face="arial"><span style="font-size:14px">WARNING: Host declarations are global. They are not limited to the scope you declared them in.</span></font></div><span class=""><div><font color="#000000" face="arial"><span style="font-size:14px">Config file: /etc/dhcp/dhcpd6.conf</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Database file: /var/db/dhcpd6.leases</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">PID file: /var/run/dhcpd6.pid</span></font></div></span><div><font color="#000000" face="arial"><span style="font-size:14px">Wrote 0 deleted host decls to leases file.</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Wrote 0 new dynamic host decls to leases file.</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Wrote 0 NA, 0 TA, 1 PD leases to lease file.</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Bound to *:547</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Listening on Socket/5/eth0/2011:1:2::/48</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Sending on Socket/5/eth0/2011:1:2::/48</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Server starting service.</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Solicit message from fe80::3291:8fff:fe05:bf86 port 546, transaction ID 0xF5FFA00</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Advertise PD: address 2011:1:2:2::/64 to client with duid 00:03:00:01:30:91:8f:05:bf:86 iaid = 1 valid for 640 seconds</span></font></div><span class=""><div><font color="#000000" face="arial"><span style="font-size:14px">Sending Advertise to fe80::3291:8fff:fe05:bf86 port 546</span></font></div></span><div><font color="#000000" face="arial"><span style="font-size:14px">Request message from fe80::3291:8fff:fe05:bf86 port 546, transaction ID 0x936B200</span></font></div><div><font color="#000000" face="arial"><span style="font-size:14px">Reply PD: address 2011:1:2:2::/64 to client with duid 00:03:00:01:30:91:8f:05:bf:86 iaid = 1 valid for 640 seconds</span></font></div><span class=""><div><font color="#000000" face="arial"><span style="font-size:14px">Sending Reply to fe80::3291:8fff:fe05:bf86 port 546</span></font></div><div style="color:rgb(0,0,0);font-family:arial;font-size:14px"><br></div></span></i></div><div><span style="font-size:12.8px">Thanks,</span></div><div><span style="font-size:12.8px">Reed</span></div></div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Thu, Dec 1, 2016 at 6:31 PM, Niall O'Reilly <span dir="ltr"><<a href="mailto:niall.oreilly@ucd.ie" target="_blank">niall.oreilly@ucd.ie</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>On 1 Dec 2016, at 9:47, Reed Xia wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have a Ubuntu 14.04 with 2 Ethernet adapters(eth0 and eth1), eth0 is connected to an homeware device, I need set up DHCP IPv6 service against eth0(I set the IPv6 address for eth0 as 2007::7/64 in Ubuntu),<br>
</blockquote>
<br></span>
Perhaps you mean 2001::7 (mentioned in the configuration fragment you sent) ?<span><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
and I want the homeware to obtain a fixed IPv6 address(2001::10),<br>
</blockquote>
<br></span>
2001::/32 is reserved for a specific purpose (see <a href="https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml" rel="noreferrer" target="_blank">https://www.iana.org/assignmen<wbr>ts/iana-ipv6-special-registry/<wbr>iana-ipv6-special-registry.xht<wbr>ml</a>). Re-using part of this address space for your own, private<br>
purpose is likely to cause trouble for you or others.<br>
<br>
You should not do this.<br>
<br>
If you have not been assigned a global address prefix, you should consider using a Unique<br>
Local IPv6 prefix (see <a href="https://tools.ietf.org/html/rfc4193" rel="noreferrer" target="_blank">https://tools.ietf.org/html/rf<wbr>c4193</a>).<span><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
so I did it in following way, now the problem is the homeware always cannot get IPv6, I can see message "Unable to pick client prefix: no IPv6 pools on this shared network" from dhcpd service, I guess the dhcpd6.conf have some problem, can you please help figure out?<br>
</blockquote>
<br></span>
The message is telling you that a 'pool6' specification is expected. It is clear from<br>
the man-page that this is allowed, but NOT clear that it is required. I'ld suggest<br>
trying the following where you currently have just a 'range6' specification:<br>
<br>
pool6 {<br>
range6 ...<br>
}<br>
<br>
Best regards,<br>
<br>
Niall O'Reilly<br>
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</blockquote></div><br><br clear="all"><div><br></div></div></div><span class="HOEnZb"><font color="#888888">-- <br><div class="m_8620377360484676693gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><font face="comic sans ms, sans-serif">Thanks,</font><div><font face="comic sans ms, sans-serif">- Reed</font></div></div></div>
</font></span></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><font face="comic sans ms, sans-serif">Thanks,</font><div><font face="comic sans ms, sans-serif">- Reed</font></div></div></div>
</div></div>