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    <div class="moz-cite-prefix">On 01/14/2013 01:35 PM, Sheng Yang
      wrote:<br>
    </div>
    <blockquote
cite="mid:CA+2rt40LKCUHLPPvVU0V1Ep4wijPeppXyUnvZGjfHepyt9__NA@mail.gmail.com"
      type="cite">On Mon, Jan 14, 2013 at 9:49 AM, Sheng Yang <span
        dir="ltr"><<a moz-do-not-send="true"
          href="mailto:sheng@yasker.org" target="_blank">sheng@yasker.org</a>></span>
      wrote:<br>
      <blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
        <div dir="ltr">
          <div>Hi Simon,</div>
          <div><br>
          </div>
          <div>Thank you for help! It's the problem! </div>
          <div><br>
          </div>
          <div>However, after I correct this one, dnsmasq still failed
            to hand out IP address, using dhcp-host entry.</div>
          <div><br>
          </div>
          <div>The config here:</div>
          <div>
            <div class="im">
              <div style="font-family:arial,sans-serif;font-size:13px">dhcp-range=fc00:1234:5678:1234::1,static<br>
              </div>
              <div style="font-family:arial,sans-serif;font-size:13px">
dhcp-host=00:01:00:01:18:80:df:3e:48:aa:8e:b2:d5:2a,fred,[fc00:1234:5678:1234::144],test,infinte<br>
              </div>
              <div style="font-family:arial,sans-serif;font-size:13px">enable-ra</div>
              <div style="font-family:arial,sans-serif;font-size:13px">
                <br>
              </div>
            </div>
          </div>
        </div>
      </blockquote>
      <div><br>
      </div>
      <div style="">Thank you! I found the problem. dhcp-host should be:</div>
      <div style=""><span
          style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><br>
        </span></div>
      <div style=""><span
          style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px">dhcp-host=id:00:01:00:01:18:80:</span><span
style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px">df:3e:48:aa:8e:b2:d5:2a,fred,[</span><span
style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px">fc00:1234:5678:1234::144],</span><span
style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px">test,infinte</span><br>
      </div>
      <div style=""><span
          style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><br>
        </span></div>
      <div style=""><span
          style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px">missing
          the id option...</span></div>
      <div style=""><span
          style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><br>
        </span></div>
    </blockquote>
    And if your client such as dhclient starts from scratch such as
    might happen after installing a new system, you will find that the
    id will be different ... related but different .. and both will be
    related to the MAC address but not in a predictable way.<br>
    <br>
    I have also tried using the host name for DHCPv6 fixed IPv6 address
    and that does not work any better.  Once you get them working, they
    will continue to work until something changes and you have to
    manually sync them again.  Frustrating.<br>
    <br>
    Gene<br>
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