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<p>Run a tcpdump on the network interface looking for DHCP traffic.
Are there any responses?<br>
<font color="#993300"><tt># IPv4</tt><tt><br>
</tt><tt>tcpdump -vv -e -n -i lan10 'portrange 67-68'</tt><tt><br>
</tt><tt># IPv6</tt><tt><br>
</tt><tt>tcpdump -X -l -vv -e -n -i wifi 'portrange 546-547'</tt><tt><br>
</tt></font><br>
Who is handling your logging? systemd-journald? rsyslogd?<br>
<br>
Bill<br>
</p>
<div class="moz-cite-prefix">On 1/20/2020 12:17 AM, Purva Rawan
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1961288603.14034.1579497450704.JavaMail.open-xchange@webmail.cdac.in">
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<p align="LEFT"><span style="color: #242729;"><span
style="font-family: Arial, 'Helvetica Neue', Helvetica,
sans-serif;"><span>Hi,</span></span></span></p>
<p align="LEFT"><span style="color: #242729;"><span
style="font-family: Arial, 'Helvetica Neue', Helvetica,
sans-serif;"><span>We are using ISC-DHCP version is 4.1.1 on
centos 6.4 .DHCP service started becoming unresponsive
once every week . The server itself is up and running, but
the DHCP service was unresponsive.We restarted the
service. But after few days dhcp service stopped working.
No entries were written to the dhcp log, and there was
nothing helpful in any event log.We observed that Load on
server ,CPU utilization ,HDD utilization,network traffic
are normal during service get freeze.</span></span></span></p>
<p align="LEFT"><span style="color: #242729;"><span
style="font-family: Arial, 'Helvetica Neue', Helvetica,
sans-serif;"><span>How to fix this issue?</span></span></span></p>
<p align="LEFT">Regards,</p>
<p align="LEFT">Purva </p>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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