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You are here: OpenWrt Wiki » Documentation » The UCI System » Minimal SNMP Daemon (mini_snmpd) configuration
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Minimal SNMP Daemon (mini_snmpd) configuration

The mini_snmpd configuration is located in /etc/config/mini_snmpd. This configuration is responsible for defining basic snmp attributes, such as location, contact, community and snmp tables for disks and interfaces. This daemon reports only 32bit counters (Counter32).

Sections

Configuration consists of single section called mini_snmpd.

The default configuration defines following settings: 

config mini_snmpd
        option enabled          '0'
        option ipv6             '0'
        option community        'public'
        option location         ' '
        option contact          ' '
        option disks            '/tmp,/jffs'
        option interfaces       'lo,br-lan,br-wan' # Max 4

  • enabled defines if daemon should be started on by rc script
  • ipv6 enables daemon's support of ipv6 sockets - it will listen on :::161 instead of 0.0.0.0:161
  • community sets SNMP community string
  • location and contact set those base SNMP attributes
  • disks and interfaces specifies which filesystems and interfaces should be referenced by corresponding management tables.
Name Type Required Default Description
enabled boolean yes 0 Switches daemon on or off in rc (init.d) script
ipv6 boolean no 0 Enables daemon's support of ipv6 sockets
community string yes public Sets SNMP Community string to contact this agent
location string no (none) If defined, sets location OID which mini_snmpd reports
contact string no (none) If defined, sets contact OID wchi mini_snmpd reports
disks coma separated list of filesystems' mountpoints no (none) If defined, mini_snmpd includes this filesystem in output table
interfaces coma separated list of network interfaces no (none) If defined, mini_snmpd includes this interfaces in output table

Examples

Simple example: enable daemon, including ipv6 support, defining other parameters. 

config mini_snmpd
        option enabled 1
        option ipv6 1
        option community secretring
        option location 'kitchen'
        option contact 'me@my.tld'
        option disks '/tmp,/jffs'
        option interfaces 'br-lan,br-wan,wlan0'
Example of the snmpwalk: iso.3.6.1.2.1.1.1.0 = "" iso.3.6.1.2.1.1.2.0 = OID: iso.3.6.1.4.1 iso.3.6.1.2.1.1.3.0 = Timeticks: (4288469671) 496 days, 8:24:56.71 iso.3.6.1.2.1.1.4.0 = STRING: "me@my.tld" iso.3.6.1.2.1.1.5.0 = STRING: "gw.my.tld" iso.3.6.1.2.1.1.6.0 = STRING: "kitchen" iso.3.6.1.2.1.2.1.0 = INTEGER: 3 iso.3.6.1.2.1.2.2.1.1.1 = INTEGER: 1 iso.3.6.1.2.1.2.2.1.1.2 = INTEGER: 2 iso.3.6.1.2.1.2.2.1.1.3 = INTEGER: 3 iso.3.6.1.2.1.2.2.1.2.1 = STRING: "br-lan" iso.3.6.1.2.1.2.2.1.2.2 = STRING: "br-wan" iso.3.6.1.2.1.2.2.1.2.3 = STRING: "wlan0" iso.3.6.1.2.1.2.2.1.8.1 = INTEGER: 1 iso.3.6.1.2.1.2.2.1.8.2 = INTEGER: 1 iso.3.6.1.2.1.2.2.1.8.3 = INTEGER: 1 iso.3.6.1.2.1.2.2.1.10.1 = Counter32: 72802252 iso.3.6.1.2.1.2.2.1.10.2 = Counter32: 421289922 iso.3.6.1.2.1.2.2.1.10.3 = Counter32: 157778493 iso.3.6.1.2.1.2.2.1.11.1 = Counter32: 480403 iso.3.6.1.2.1.2.2.1.11.2 = Counter32: 1200709 iso.3.6.1.2.1.2.2.1.11.3 = Counter32: 188534 iso.3.6.1.2.1.2.2.1.13.1 = Counter32: 0 iso.3.6.1.2.1.2.2.1.13.2 = Counter32: 0 iso.3.6.1.2.1.2.2.1.13.3 = Counter32: 0 iso.3.6.1.2.1.2.2.1.14.1 = Counter32: 0 iso.3.6.1.2.1.2.2.1.14.2 = Counter32: 0 iso.3.6.1.2.1.2.2.1.14.3 = Counter32: 0 iso.3.6.1.2.1.2.2.1.16.1 = Counter32: 418541942 iso.3.6.1.2.1.2.2.1.16.2 = Counter32: 78533608 iso.3.6.1.2.1.2.2.1.16.3 = Counter32: 23900061 iso.3.6.1.2.1.2.2.1.17.1 = Counter32: 546538 iso.3.6.1.2.1.2.2.1.17.2 = Counter32: 423408 iso.3.6.1.2.1.2.2.1.17.3 = Counter32: 187154 iso.3.6.1.2.1.2.2.1.19.1 = Counter32: 0 iso.3.6.1.2.1.2.2.1.19.2 = Counter32: 0 iso.3.6.1.2.1.2.2.1.19.3 = Counter32: 0 iso.3.6.1.2.1.2.2.1.20.1 = Counter32: 0 iso.3.6.1.2.1.2.2.1.20.2 = Counter32: 0 iso.3.6.1.2.1.2.2.1.20.3 = Counter32: 0 iso.3.6.1.2.1.25.1.1.0 = Timeticks: (4288472447) 496 days, 8:25:24.47

As you see walk doesn't catch on disks for some reason.

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doc/uci/mini_snmpd.txt · Last modified: 2012/09/27 13:41 by jow