Syed Jahanzaib Personal Blog to Share Knowledge !

July 7, 2014

MRTG Monitoring with ESXi Hosted Guest Return ‘interface is commented * has no ifSpeed property’

Filed under: Linux Related, Mikrotik Related — Tags: , , — Syed Jahanzaib / Pinochio~:) @ 9:09 AM

Recently at a network, I migrated the mikrotik base RB configuration to esxi base VM guest. Everything went fine, this Mikrotik have snmp configured, and it is monitored via linux base MRTG for various probes. after migration, mrtg graph for itnerfaces stopped with following (when i re run the cfgmaker)

### The following interface is commented out because:
### * has no ifSpeed property

After playing with the itnerfaces & mrtg values, I found two solutions

Solution # 1

Network adapter need to be “E1000″ rather then  “flexible”.  Then SNMP will see the ifspeed correctly.
To make changes, its recommended to turn off the guest.

Solution # 2

Assign this speed in bits-per-second to all interfaces which return 0 for ifSpeed and ifHighSpeed

Create the cfg file with following syntax “–zero-speed=100000000 ”

 cfgmaker -zero-speed=100000000 snmp_community@ > mikrotik.cfg

[ is mikrotik ip]



  1. AOA! RESPECTED SIR 1 Line main Mikrotik RB750G 3ya 4 DSL uses kerne hon to masla to nahin

    On Mon, Jul 7, 2014 at 9:10 AM, Syed Jahanzaib Personnel Blog to Share

    Comment by matloobfsd1 — July 7, 2014 @ 10:50 AM

  2. Hi Syed, i would like to ask if it’s possible to authenticate to mikrotik hotspot using active directory? if so, any chance of a tutorial? thank you very much…

    Comment by Teulilo — September 4, 2014 @ 11:21 PM

  3. Hi Syed, great blog….I left a message before but dont know where it went…anyway, any ideas on using active directory to authenticate hotspot users? thanking you in advance…

    Comment by Teu Teulilo — September 5, 2014 @ 6:13 AM

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