<div dir="auto">Hi Bill,<div dir="auto"><br></div><div dir="auto">Thanks for reply as suggested i have increased lease time to one hour and I observerd one more scenario when the client moves from one subnet to another subnet ( lease time say 1hr). The client got IP from the second subnet scope but the previous IP in the 1st subnet is still in hold and in the lease file. It still recorded an active entry. How can the dhcp server reclaims those unused IP's? Do we have any configuration statement making dhcp to cross check all the active IP's of that scope before saying no free leases.</div><div dir="auto">The first IP is getting into free state after completing its 1 hour lease duration till that time it is active mode only.</div><div dir="auto"><br></div><div dir="auto">Thanks in advance.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 7 Sep 2019, 00:33 Bill Shirley, <<a href="mailto:bill@c3po.polymerindustries.biz">bill@c3po.polymerindustries.biz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
Note: two minutes (120 seconds) is a very short lease time.<br>
<br>
Are you sure you're looking at the correct lease file? Your grep
says you have <b>no</b><b><br>
</b><b>leases</b> on 192.168.3.x.<br>
<br>
Your log entries via looks strange. I would think it should contain
the interface name:<br>
<font color="#993300"><tt>DHCPDISCOVER from 40:4e:36:d2:bf:9d via
wifi<br>
DHCPDISCOVER from b4:18:d1:69:02:f9 (Bobs-iPhone) via wifi</tt><tt><br>
</tt></font><br>
Bill<br>
<br>
<div class="m_8537218324372512450moz-cite-prefix">On 9/6/2019 6:25 AM, Surya Teja wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi
<div>I have configured the dhcp on my local environment with
the configuration as </div>
<div>=================================</div>
<div>subnet 192.168.3.0 netmask 255.255.255.0 {<br>
pool {<br>
range 192.168.3.3 192.168.3.143;<br>
}<br>
default-lease-time 120;<br>
max-lease-time 120;<br>
option domain-name "<a href="http://example.com" target="_blank" rel="noreferrer">example.com</a>";<br>
option routers 192.168.3.1;<br>
option subnet-mask 255.255.255.0;<br>
}<br>
</div>
<div>But no client is able to get the IP and in the logs I can
see:<br>
DHCPDISCOVER from 84:EF:18:6A:89:DE via <a href="http://192.168.3.11" target="_blank" rel="noreferrer">192.168.3.11</a>: network <a href="http://192.168.3.0/24" target="_blank" rel="noreferrer">192.168.3.0/24</a>:<b> no free leases</b><br>
DHCPDISCOVER from 00:FF:4A:81:D5:A5 via <a href="http://192.168.3.16" target="_blank" rel="noreferrer">192.168.3.16</a>: network <a href="http://192.168.3.0/24" target="_blank" rel="noreferrer">192.168.3.0/24</a>: <b>no free
leases</b><br>
</div>
<div>But it is not possible and none of the client get the lease
from the specified network. I cross checked in the lease file
also </div>
<div>[root@dhcpserver]# cat dhcpd.leases | grep 192.168.3 -A 10
-B 10<br>
[root@dhcpserver]#<br>
</div>
<div>It doesn't shows any entry <br>
<br>
</div>
<div>Any help is appreciated thanks in advance <br>
</div>
</div>
<br>
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