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<p class="MsoNormal"><span style="font-size:11.0pt">I’ve run across a couple of devices that don’t properly support RFC3414 Section 4, and, consequently, attempts to monitor them with mrtg fail with
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:Menlo;color:black">Use of uninitialized value in pattern match (m//) at /usr/lib/perl5/vendor_perl/5.10.0/Net/SNMP.pm line 2544.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:Menlo;color:black">SNMPopen failed: Time synchronization failed during discovery<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Menlo;color:black">at /usr/lib64/mrtg2/Net_SNMP_util.pm line 1580<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Menlo;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Menlo;color:black">I’m experiencing this with a couple of devices – Liebert UPS monitoring cards and Microsemi NTP clocks. A bug report for Net::SNMP suggested that a fix would be to add a flag
that disables the RFC3414 behavior. Does anyone know if such a flag has been added to Net::SNMP, and if so, what I would need to do to pass that flag along to Net_SNMP_Util? I don’t think either MRTG or Net_SNMP_Util does much parsing of the SNMP_OPTIONS
directive, so it should be relatively straightforward to pass it through. </span>
<span style="font-size:11.0pt"><o:p></o:p></span></p>
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