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<p class="MsoNormal">I’m a long-time dnsmasq user, but first-time poster. I can’t imagine that this hasn’t been discussed before, but I wasn’t able to come up with search terms to find it.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This arises because we are creating and destroying VMs like crazy for automated software testing. The VMs are using dynamic-range addresses, and every time a VM is rebooted it gets a new address, even if there is a valid existing lease.
And we see leases for the same mac address accumulating in the leases file, like this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">1466722310 52:54:00:51:e7:ad 10.114.5.186 localhost ff:00:51:e7:ad:00:01:00:01:1e:fe:ec:44:52:54:00:51:e7:ad<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">1466722212 52:54:00:51:e7:ad 10.114.5.185 * ff:00:51:e7:ad:00:01:00:01:1e:fe:eb:e2:52:54:00:51:e7:ad<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">1466719093 52:54:00:51:e7:ad 10.114.5.184 * ff:00:51:e7:ad:00:01:00:01:1e:fe:df:b3:52:54:00:51:e7:ad<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">1466718818 52:54:00:6f:8c:2a 10.114.5.227 * ff:00:6f:8c:2a:00:01:00:01:1e:fe:de:9f:52:54:00:6f:8c:2a<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">1466715993 52:54:00:4a:54:e7 10.114.5.179 * ff:00:4a:54:e7:00:01:00:01:1e:fe:d3:96:52:54:00:4a:54:e7<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there a way to coax dnsmasq to give out an address matching the still-valid lease, if any?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">FYI the VMs are mostly Fedora 2[234] and RHEL7<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The changing addresses are a challenge for our test automation…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">John Groves<o:p></o:p></p>
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