<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Mar 29, 2022 at 10:18 AM Manuel Michalski <<a href="mailto:dude2000@web.de">dude2000@web.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:Verdana;font-size:12px"><div>Hello guys </div>
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<div>I have a short question regarding the check_dhcp plugins - have you removed the "Rogue" option? I can't find it inside to check for rogue dhcps:</div></div></div></blockquote><div><br></div><div>Are you sure this option was "officially" in the plugin? <br></div><div><br></div><div><a href="https://github.com/monitoring-plugins/monitoring-plugins/issues/752">https://github.com/monitoring-plugins/monitoring-plugins/issues/752</a> from 2013 offers a patch to add this option, but the issue is still open.</div><div><br></div><div>A blog entry from Xavier Mertens in 2008 (<a href="https://blog.rootshell.be/2008/12/19/roguehacked-dhcp-server-detection-using-nagios/">https://blog.rootshell.be/2008/12/19/roguehacked-dhcp-server-detection-using-nagios/</a>) mentions a manually patched check_dhcp to check for rogue DHCP servers. <br></div><div><br></div><div>Maybe you have used a manually patched check_dhcp in the past?</div></div></div>