[mrtg] [FORGED] Won't work after reboot

Steve Shipway s.shipway at auckland.ac.nz
Thu Jun 4 23:35:50 CEST 2015

Most likely, after you reboot your router, your server still has not yet re-established a wireless network connection when you run MRTG and so the interface is not yet available to be queried.


The other possibility is that your mrtg.cfg identifies the network interfaces by number rather than by name, and a reboot causes a reenumeration.


Since you did not tell us the error messages in your initial post I can only guess…




Steve Shipway

s.shipway at auckland.ac.nz

(GNU Terry Pratchett)


From: mrtg [mailto:mrtg-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch] On Behalf Of Aizad Fauzi
Sent: Friday, 5 June 2015 8:18 a.m.
To: mrtg at lists.oetiker.ch
Subject: [FORGED] [mrtg] Won't work after reboot




I am having issue with only wlan0 and wlan1 (2.5 & 5) for collecting data.

Initial setup it was ok and running fine. If I reboot my router, both wireless will having errors when I run "mrtg mrtg.conf"


Other interface is ok such as ppp, eth0, eth1 and br-lan.


​Thanks & regards,



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