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<p>I read an article earlier this month on software bugs and it had
mention a bug in dhcp and that they were trying to fix it.</p>
<p>Not sure if it might be related to your problem. I wish I kept
the article to pass on to others but I didn't.</p>
<p>Sorry about that.<br>
</p>
<div class="moz-cite-prefix">On 3/26/22 12:04, AZ Pete via
PLUG-discuss wrote:<br>
</div>
<blockquote type="cite"
cite="mid:23f947a1-db57-0eaa-ad2e-218e38dd4620@SonoranZen.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<font face="Calibri">All, <br>
I ran into an interesting bug that I thought I'd share here. I
set up one of my Raspberry Pi computers as a Pi-hole and also
configured it to act as my DHCP server.<br>
After the Pi was acting as a my DHCP router I noticed hundreds
of log entries in the pihole.log file. <br>
The Pi was being flooded with these kind of requests:<br>
<br>
10:17:10 dnsmasq-dhcp[20546]: DHCPINFORM(eth0) 192.168.1.41
dc:a6:32:65:89:d9<br>
10:17:10 dnsmasq-dhcp[20546]: DHCPACK(eth0) 192.168.1.41
dc:a6:32:65:89:d9 desertpi<br>
<br>
Literally dozens of entries per second. As it turns out, I set
my other two PIs to static IP addresses using the GUI interface,
which put this into dhcpcd.conf file:<br>
interface eth0<br>
inform 192.168.1.41<br>
static routers=192.168.1.1<br>
static domain_name_servers=192.168.1.1<br>
<br>
When I changed it to this there were no more log entries as
listed above (i.e. changed 'inform' to 'static')<br>
interface eth0<br>
static ip_address=192.168.1.41/24<br>
static routers=192.168.1.1<br>
static domain_name_servers=192.168.1.1<br>
<br>
As it turns out there is a bug in dhcp that causes INFORM
messages to flood the router. Since my Netgear router acted as
the dhcp server previously, I never saw these entries (the
netgear log must not display them). But, I had always wondered
why my PI's network LED was always blinking so much....<br>
<br>
I could only find two article discussing this:<br>
<a class="moz-txt-link-freetext"
href="https://raspberrypi.stackexchange.com/questions/116121/huge-syslog-filled-with-dhcpcd-lines"
moz-do-not-send="true">https://raspberrypi.stackexchange.com/questions/116121/huge-syslog-filled-with-dhcpcd-lines</a><br>
<a class="moz-txt-link-freetext"
href="https://forums.raspberrypi.com/viewtopic.php?t=265516"
moz-do-not-send="true">https://forums.raspberrypi.com/viewtopic.php?t=265516</a><br>
<br>
My take away: Don't use the GUI to configure things. :)<br>
<br>
Hope this helps someone...<br>
Thanks,<br>
Peter<br>
<br>
<br>
<br>
<br>
<br>
<br>
</font> <br>
<fieldset class="moz-mime-attachment-header"></fieldset>
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</blockquote>
<pre class="moz-signature" cols="72">--
Harold Hartley
17632 N. 5th Pl
Phoenix, AZ 85022
<a class="moz-txt-link-abbreviated" href="mailto:wheelie207@ownmail.net">wheelie207@ownmail.net</a></pre>
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