[mrtg] Re: SNMPv3 & MRTG cfgmaker

[Daniel J McDonald]

On Tue, 2006-07-25 at 17:20 -0700, Lamerson, Brian wrote:
> Hello all.  I am attempting to get SNMPv3 to run on our Cisco equipment
> and work with MRTG.  So far I have SNMPv3 working perfectly on the Cisco
> equipment.  I applied the following to get it to work:
> snmp-server group MRTG v3 priv
> snmp-server user MRTG MRTG v3 auth md5 authpassword priv des
> privpassword
> 
> I can in turn query it using:
> 
> snmpget -v 3 -a md5 -u MRTG -x des -A authpassword -X privpassword -l
> authpriv <routerip> 1.3.6.1.2.1.1.3.0
> 
> Everytime, it returns the uptime.


> 
> However, when I try to use MRTG with it, I receive the following:
> perl cfgmaker --global "EnableSnmpV3: yes" --snmp-options=:::::3
> --username MRTG --authpassword authpassword --privpassword privpassword
> <routerip>
> 
> SNMP V3 requires a --username parameter as part of the User Security
> Model for router 10.32.254.2:::::3 at cfgmaker line 121.
> 
This is what I use:
/usr/bin/cfgmaker --if-template=iosv3.iftemplate --ifref=name
--interfaces --host-template=iosv3.template --subdir=southwest/HOSTNAME
--username='public' --authkey='0x296ad09[...]' --authproto='sha'
--privkey='0x49d9388[...]' --privproto='des'
--output=/var/mrtg/cfg/southwest/salemwalk-net.cfg
'public'@salemwalk-net.austin-energy.net::2:1:1:3

> I've tried moving the location of -username,

I believe cfgmaker requires that all of the modifiers be placed before
the router name.

>  I've tried adding
> -username=MRTG, I've tried -username="MRTG" (Windows box).
it should be --username="mrtg"

>   I've
> basically tried all different iterations of it.  Is this a bug with the
> cfgmaker program or is it highly picky about something I'm doing?

It's pretty picky.

> Obviously SNMPv3 is working on the device from the snmpget command, just
> I cannot get the syntax for the cfgmaker command.  While we are a
> Windows shop, I have tried running cfgmaker both from a Windows machine
> and a Linux machine with the same results.  I'm using MRTG version
> 2.14.5.  Thanks in advance!! 

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