[mrtg] Resolution: newbie question

Thu May 10 17:12:29 CEST 2007

Thanks to both Christopher Noyes and Daniel McDonald for helping me find the issue. 

First, the --snmp-options for cfgmaker didn't work, but it did work in the custom cfg file I created. Second, I had to increase MaxBytes to an astronomical number as it appears that while the servers numbers are increasing they do not reset, so my MaxBytes pretty sky-high. Third, the Target wound up being 

ipBytesIn.10.10.63.102&ipBytesOut.10.10.63.102:public at 10.10.63.6:::::2

It didn't seem to like the numeric value for this information - for some reason it likes the name. Either way, it's working. 

Thanks!

Ken

  ----- Original Message ----- 
  From: Christopher Noyes 
  To: Ken Gibson 
  Cc: mrtg at lists.oetiker.ch 
  Sent: Thursday, May 10, 2007 8:38 AM
  Subject: Re: [mrtg] newbie question

  From your snmpwalk it appears you are using snmp v2 but you aren't in your cfgmaker statement.  Try adding --snmp-options=:::::2 to your cfgmaker statement. 
  This is from the cfgmaker on-line documentation:  (--snmp-options=:[<port>][:[<tmout>][:[<retr>][:[<backoff>][:<ver>]]]]) 

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        "Ken Gibson" <ken.gibson at iapshop.com> 
        Sent by: mrtg-bounces at lists.oetiker.ch 
        05/10/2007 08:49 AM 
       To <mrtg at lists.oetiker.ch>  
              cc  
              Subject [mrtg] newbie question 

  Greetings, all. 

  Before I get to my question let me say  MRTG is the greatest thing since sliced bread. I'm very new to SNMP, however, so  please be gentle. 

  Like the question asked earlier by  another list member, I'd like to use explicit OIDs to monitor bytes in and  out on Array Network machines from Fedora Core5. The command I'm using is   

  ./bin/cfgmaker -global 'WorkDir:/private-1/www/array' --global  'Options[_]:bits,growright' --output /private-1/www/array/cfg/vip_in_out_6.cfg  1.3.6.1.4.1.7564.22.6\&1.3.6.1.4.1.7564.22.7:public at 10.10.63.6 

  which throws the following: 

  --base: Get Device Info on  1.3.6.1.4.1.7564.22.6&1.3.6.1.4.1.7564.22.7:public at 10.10.63.6: 
  SNMP  Error: 
  no response received 
  SNMPv1_Session (remote host: "10.10.63.6"  [10.10.63.6].161) 
                     community:  "1.3.6.1.4.1.7564.22.6&1.3.6.1.4.1.7564.22.7:public" 
                    request ID:  -1871658509 
                   PDU bufsize: 8000  bytes 
                       timeout:  2s 
                       retries:  5 
                       backoff: 1) 
   at /usr/share/mrtg-2.15.1/bin/../lib/mrtg2/SNMP_util.pm  line 627 
  SNMPWALK Problem for 1.3.6.1.2.1.1 on  1.3.6.1.4.1.7564.22.6&1.3.6.1.4.1.7564.22.7:public at 10.10.63.6:::::v4only 
   at  ./bin/cfgmaker line 924 
  WARNING: Skipping  1.3.6.1.4.1.7564.22.6&1.3.6.1.4.1.7564.22.7:public at 10.10.63.6: as no info  could be retrieved 

  --base: Writing  /private-1/www/array/cfg/vip_in_out_6.cfg 

  However, using snmpwalk by itself seems  to work. This might be expected, too, since I'm using a third-party MIB  file. 

  # snmpwalk -v 2c -c public -u array 10.10.63.6  1.3.6.1.4.1.7564.22.6 
  CA-SNMP-MIB::totalIPBytesIn.0 = Counter32:  2111313468 

  To test another method, I then created my  own .cfg file, which looked like 

  EnableIPv6:  no 
  WorkDir:/private-1/www/array 
  LoadMIBs:  /usr/share/snmp/mibs/CA-SNMP-MIB.txt 
  Target[r1]:  1.3.6.1.4.1.7564.22.6&1.3.6.1.4.1.7564.22.7:public at 10.10.63.6 
  Options[_]:bits,growright 
  MaxBytes[r1]:  8000 
  Title[r1]: Bytes in and out 10.10.63.6 
  PageTop[r1]: <h1>Bytes  in and out 10.10.63.6</h1> 

  This generated graphs with no data, which  again might be expected since it was breaking earlier. 
  Since there are several IP addresses  load-balanced by these machines, I've also tried 
  Target[r1]:  CA-SNMP-MIB::totalIPBytesIn.10.10.63.102&CA-SNMP-MIB::totalIPBytesOut.10.10.63.102:public at 10.10.63.6 
  The log for the last try says "Argument  'v4only' isn't numeric in int at ..." 

  Any ideas why this wouldn't work?  Any help you can give me is greatly  appreciated. 

  Thanks 

  Ken 

  PS - the default scripts from the  examples on the site work just fine with these devices; i.e., the graphs  generated by the command 

  ./bin/cfgmaker -global  'WorkDir:/private-1/www/array' --global 'Options[_]:bits,growright' --output  /private-1/www/array/cfg/mrtg.cfg  public at 10.10.63.6 

  look great. 
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