[mrtg] finding ifHC* counters by ifName

Pavel Ruzicka pavouk at pavouk.org
Mon Sep 3 23:13:48 CEST 2012

Hello Adi,

it is not needed to specify ifHCInOctets and ifHCOutOctets.
If you specify SNMP version two with :::::2 on the end of target,
that MRTG automatically try to use 64bit counters.

You can check existence of these counters with snmpwalk.
Also check existence ifHighSpeed and ifSpeed which is used by cfgmaker
for maxbytes value.

You can automatically generate MRTG configuration for your host
with cfgmaker.

Best regards,


> Is it possible in the current version of MRTG to target the
> ifHC{In,Out}Octets by ifName?  I tried the following and it doesn't work:
> Target[network_cume_bond0]:
> ifHCInOctets#bond0&ifHCOutOctets#bond0:public at localhost:::::2
> The error it throws is:
> 2012-09-03 13:35:01 -- 2012-09-03 13:35:01: WARNING: could not match&get
> localhost/ifHCInOctets for Name 'bond0'
> When I snmpwalk, the ifName for bond0 is clearly there:
> IF-MIB::ifName.1 = STRING: lo
> IF-MIB::ifName.2 = STRING: eth0
> IF-MIB::ifName.3 = STRING: eth1
> IF-MIB::ifName.4 = STRING: bond0
> So why couldn't it find it?
> Thanks,
> Adi

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