Weird interface names in snmp due to virtio driver / 2018-09-06

2018-09-06 Weird interface names in snmp due to virtio driver
I want to measure network traffic so I decided to copy most of my rrdtool setup from the old home server.

But with virtio network cards I have a confused snmpd:
IF-MIB::ifDescr.1 = STRING: lo
IF-MIB::ifDescr.2 = STRING: Red Hat, Inc Device 0001
IF-MIB::ifDescr.3 = STRING: Red Hat, Inc Device 0001
IF-MIB::ifDescr.4 = STRING: Red Hat, Inc Device 0001
IF-MIB::ifDescr.5 = STRING: dummy0
IF-MIB::ifDescr.6 = STRING: dumhost
IF-MIB::ifDescr.7 = STRING: dumdh6
Fix: go for the IF-MIB::ifName snmp variables, found in oid 1.3.6.1.2.1.31.1.1.1:
IF-MIB::ifName.1 = STRING: lo
IF-MIB::ifName.2 = STRING: eth0
IF-MIB::ifName.3 = STRING: eth1
IF-MIB::ifName.4 = STRING: eth2
IF-MIB::ifName.5 = STRING: dummy0
IF-MIB::ifName.6 = STRING: dumhost
IF-MIB::ifName.7 = STRING: dumdh6
Those are easier to discern, now my snmp scripts are gathering data again.

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