[mrtg] cfgmaker failing

Steve Shipway s.shipway at auckland.ac.nz
Thu Jan 24 23:47:57 CET 2013

You seem to have a typo in the IP address:


[root at tuxnldds01 tuxnldds01]# cfgmaker --global 'WorkDir:
/var/www/html/tuxnldds01/' --global 'Options[_]: bits,growright' -output




[root at tuxnldds01 tuxnldds01]# snmpwalk -v 1 -c public




Either the first is using the wrong IP address, or your second is testing
the wrong IP and the original IP is still blocking by ACL or community.






Steve Shipway

ITS Unix Services Design Lead

University of Auckland, New Zealand

Floor 1, 58 Symonds Street, Auckland

Phone: +64 (0)9 3737599 ext 86487

DDI: +64 (0)9 924 6487

Mobile: +64 (0)21 753 189

Email:  <mailto:s.shipway at auckland.ac.nz> s.shipway at auckland.ac.nz

P Please consider the environment before printing this e-mail : 打印本邮件,


From: mrtg-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch
[mailto:mrtg-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch] On Behalf Of
tommy.turner at vaisala.com
Sent: Friday, 25 January 2013 11:43 a.m.
To: mrtg at lists.oetiker.ch
Subject: [mrtg] cfgmaker failing



I’m having problems getting cfgmaker to read a linux box. This is running
on a CentOS box as a yum installed binary. 

I do have this system already reading data from a Cisco switch, so I suspect
the binaries are working fine.


Any ideas would be appreciated.


The error looks like snmp is the issue:


[root at tuxnldds01 tuxnldds01]# cfgmaker --global 'WorkDir:
/var/www/html/tuxnldds01/' --global 'Options[_]: bits,growright' -output

SNMP Error:

no response received

SNMPv1_Session (remote host: "" [].161)

                  community: "public"

                 request ID: -1464189512

                PDU bufsize: 8000 bytes

                    timeout: 2s

                    retries: 5

                    backoff: 1)

at /usr/bin/../lib64/mrtg2/SNMP_util.pm line 627

SNMPWALK Problem for on public at

at /usr/bin/cfgmaker line 918

WARNING: Skipping public at as no info could be retrieved


[root at tuxnldds01 tuxnldds01]#


However snmpwalk against that mib seems to work just fine:


[root at tuxnldds01 tuxnldds01]# snmpwalk -v 1 -c public

SNMPv2-MIB::sysDescr.0 = STRING: Linux tuxnldds01 2.6.18-308.24.1.el5 #1 SMP
Tue Dec 4 17:43:34 EST 2012 x86_64

SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10

DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (674356) 1:52:23.56

SNMPv2-MIB::sysContact.0 = STRING: nccops at vaisala.com

SNMPv2-MIB::sysName.0 = STRING: tuxnldds01

SNMPv2-MIB::sysLocation.0 = STRING: "Tucson DataCenter"

SNMPv2-MIB::sysORLastChange.0 = Timeticks: (4) 0:00:00.04

SNMPv2-MIB::sysORID.1 = OID: SNMPv2-MIB::snmpMIB


SNMPv2-MIB::sysORID.3 = OID: IP-MIB::ip



SNMPv2-MIB::sysORID.6 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance

SNMPv2-MIB::sysORID.7 = OID: SNMP-MPD-MIB::snmpMPDCompliance


SNMPv2-MIB::sysORDescr.1 = STRING: The MIB module for SNMPv2 entities

SNMPv2-MIB::sysORDescr.2 = STRING: The MIB module for managing TCP

SNMPv2-MIB::sysORDescr.3 = STRING: The MIB module for managing IP and ICMP

SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for managing UDP

SNMPv2-MIB::sysORDescr.5 = STRING: View-based Access Control Model for SNMP.

SNMPv2-MIB::sysORDescr.6 = STRING: The SNMP Management Architecture MIB.

SNMPv2-MIB::sysORDescr.7 = STRING: The MIB for Message Processing and

SNMPv2-MIB::sysORDescr.8 = STRING: The management information definitions
for the SNMP User-based Security Model.

SNMPv2-MIB::sysORUpTime.1 = Timeticks: (3) 0:00:00.03

SNMPv2-MIB::sysORUpTime.2 = Timeticks: (3) 0:00:00.03

SNMPv2-MIB::sysORUpTime.3 = Timeticks: (3) 0:00:00.03

SNMPv2-MIB::sysORUpTime.4 = Timeticks: (3) 0:00:00.03

SNMPv2-MIB::sysORUpTime.5 = Timeticks: (3) 0:00:00.03

SNMPv2-MIB::sysORUpTime.6 = Timeticks: (4) 0:00:00.04

SNMPv2-MIB::sysORUpTime.7 = Timeticks: (4) 0:00:00.04

SNMPv2-MIB::sysORUpTime.8 = Timeticks: (4) 0:00:00.04

[root at tuxnldds01 tuxnldds01]#


I have a very simple snmp.cfg:

[root at tuxnldds01 tuxnldds01]# more /etc/snmp/snmpd.conf

rocommunity  public

syslocation  "Tucson DataCenter"

syscontact  nccops at vaisala.com


SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux

[root at tuxnldds01 tuxnldds01]#

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