[mrtg] Monitoring the correct interface

Feijo, Fernando Fernando.Feijo at aarons.com
Tue Oct 5 17:41:52 CEST 2010

Others will likely know more, but my personal experience with Airport
Extreme is the external interface is #2, mgi1. See snmpwalk below. Also,
you may need to configure the community string in the device with the
Airport utility.

ffeijo at a8n:/etc/cron.daily$ snmpwalk -v2c -c xxxx <Airport Express
address> interfaces.ifTable.ifEntry.ifDescr
IF-MIB::ifDescr.1 = STRING: mgi0
IF-MIB::ifDescr.2 = STRING: mgi1
IF-MIB::ifDescr.3 = STRING: mv0
IF-MIB::ifDescr.4 = STRING: mv1
IF-MIB::ifDescr.5 = STRING: lo0
IF-MIB::ifDescr.6 = STRING: bridge0

-----Original Message-----
From: mrtg-bounces+fernando.feijo=aaronrents.com at lists.oetiker.ch
[mailto:mrtg-bounces+fernando.feijo=aaronrents.com at lists.oetiker.ch] On
Behalf Of Michael Curtis
Sent: Tuesday, October 05, 2010 5:29 AM
To: mrtg at lists.oetiker.ch
Subject: [mrtg] Monitoring the correct interface


I have MRTG setup and running well on my Mac. What I really want to do
is see how much traffic is coming and going to the Internet. I am
monitoring my Apple Airport Extreme base station and Zyxel P660WHP-D1. I
could get the answer from either of these two devices. Obviously the
Zyxel would be the best place, but all traffic to the Internet has to go
through the base station to get to the Zyxel.

Does anyone know how I can do this?

Best wishes



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