Mrtg issue with snmp

General questions
1

Hi ,

i have snmp configured on vyos as below

vyos@router-env-prod-partner-rx28oml-org-72dzgmg# show service snmp
community neysa123 {
authorization ro
}
listen-address 100.64.16.42 {
}

snmpwalk shows the 64bit counters

#snmpwalk -v2c -c neysa123 100.64.16.42 IF-MIB::ifHCInOctets
IF-MIB::ifHCInOctets.1 = Counter64: 14244
IF-MIB::ifHCInOctets.2 = Counter64: 357194104944
IF-MIB::ifHCInOctets.3 = Counter64: 290697186
IF-MIB::ifHCInOctets.4 = Counter64: 15824379554
IF-MIB::ifHCInOctets.5 = Counter64: 0
IF-MIB::ifHCInOctets.6 = Counter64: 194491899
IF-MIB::ifHCInOctets.7 = Counter64: 1573565021

but on mrtg server when i try to plot the utilization graph using the cfgmaker command as below

cfgmaker --global ‘options[_]: bits,growright’ --snmp-options=::::2 neysa123@100.64.16.42 > vyos.cfg

i get the below error

–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.1 → 10 Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.1 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.2 → unknown Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.2 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.3 → unknown Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.3 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.4 → unknown Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.4 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.5 → unknown Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.5 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.6 → unknown Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.6 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHighSpeed.7 → unknown Mb/s
–base: snmpget neysa123@100.64.16.42::::2::v4only for ifHCInOctets.7 → unknown
–base: check for HighspeedCounters failed … Dropping back to V1

and in the cfg file the interfaces appear commented as below

t# Created by 
# /usr/bin/cfgmaker --global "options[_]: bits,growright" --snmp-options=::::2 neysa123@100.64.16.42


### Global Config Options

#  for UNIX
# WorkDir: /home/http/mrtg

#  for NT
# WorkDir: c:\mrtgdata

#  for several Linux, like Debian, RHEL and it's derivatives
WorkDir: /var/www/html/mrtg

#  for others Linux
# WorkDir: /srv/http/mrtg

### Global Defaults

#  to get bits instead of bytes and graphs growing to the right
# Options[_]: growright, bits

EnableIPv6: no
options[_]: bits,growright

### Interface 3 >> Descr: 'eth1' | Name: 'eth1' | Ip: '100.64.16.42' | Eth: '52-54-00-dd-93-f6' ###
### The following interface is commented out because:
### * has no ifSpeed property
# 
# Target[100.64.16.42_eth1]: #eth1:neysa123@100.64.16.42::::2
# noHC[100.64.16.42_eth1]: yes
# SetEnv[100.64.16.42_eth1]: MRTG_INT_IP="100.64.16.42" MRTG_INT_DESCR="eth1"
# MaxBytes[100.64.16.42_eth1]: 0
# Title[100.64.16.42_eth1]: Traffic Analysis for eth1 -- router-env-prod-partner-rx28oml-org-72dzgmg
# PageTop[100.64.16.42_eth1]: <h1>Traffic Analysis for eth1 -- router-env-prod-partner-rx28oml-org-72dzgmg</h1>
#               <div id="sysdetails">
#                       <table>
#                               <tr>
#                                       <td>System:</td>
#                                       <td>router-env-prod-partner-rx28oml-org-72dzgmg in VyOS Datacenter</td>
#                               </tr>
#                               <tr>
#                                       <td>Maintainer:</td>
#                                       <td>root</td>
#                               </tr>
#                               <tr>
#                                       <td>Description:</td>
#                                       <td>eth1  </td>
#                               </tr>
#                               <tr>
#                                       <td>ifType:</td>
#                                       <td>ethernetCsmacd (6)</td>
#                               </tr>
#                               <tr>
#                                       <td>ifName:</td>
#                                       <td>eth1</td>
#                               </tr>
#                               <tr>
#                                       <td>Max Speed:</td>
#                                       <td>0.0 bits/s</td>
#                               </tr>
#                               <tr>
#                                       <td>Ip:</td>
#                                       <td>100.64.16.42 (No DNS name)</td>
#                               </tr>
#                       </table>
#               </div>

if try to maually set the oid to target and rum mrtg i dont see any errors but the log for target is not being generated.

has anyone faced this issue.

Regards
senthilkumar

2

If you run the official vyos image on AWS you can contact support, and they will be able to help you troubleshoot

3

Try running tcpdump to verify whats actually being sent (and received) to/from your VyOS device?

4

Hi

I was able to get this sorted, it looks like incase of vm’s in KVM the nic speed is not reported which causes this issue, i was trying the vyos as a virtual instance in KVM. to fix this i had to change the command as below.

cfgmaker --global ‘options[_]: bits,growright’ --snmp-options=::::2 --zero-speed=1000000000 public@100.64.16.42 > vyos.cfg
1 Like
5

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