[mrtg] Won't work after reboot

[Steve Shipway]

When you reboot, the interfaces are being reenumerated – so they get a different number.

 

When MRTG probes the device, it finds them but under a different number to the one given in the cache file, and then does not know which to use (hence the ‘dup’).

 

So, delete the mrtg.ok file, then run MRTG again.  It will recreate the .ok file (this is the interface identifier cache file) using the current enumeration, and all should work.

 

Steve

 

Steve Shipway

 <mailto:s.shipway at auckland.ac.nz> s.shipway at auckland.ac.nz

(GNU Terry Pratchett)

 

From: Aizad Fauzi [mailto:redsan at gmail.com] 
Sent: Friday, 5 June 2015 2:38 p.m.
To: Steve Shipway
Cc: mrtg at lists.oetiker.ch
Subject: Re: [FORGED] [mrtg] Won't work after reboot

 

Hi Steve,

 

The /usr/sbin/mrtg is run by crontab.

Even I run it manually after reboot, it will always shows the error.

 

This is my mrtg.ok file. This is setup from scratch

public at 192.168.1.1_     Name    br-lan  6

public at 192.168.1.1_     Name    eth0    2

public at 192.168.1.1_     Name    eth1    3

public at 192.168.1.1_     Name    lo      1

public at 192.168.1.1_     Name    pppoe-wan       8

public at 192.168.1.1_     Name    wlan0   15

public at 192.168.1.1_     Name    wlan1   16

 

after reboot and run "mrtg mrtg.conf" the OK file with show wlan0 and wlan1 as Dup

 

Thanks. 

 

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