¶ 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 ' '
list disks '/tmp'
list disks '/jffs'
list interfaces 'lo'
list interfaces 'br-lan'
list interfaces 'br-wan' # Max 4
enableddefines if daemon should be started on by rc scriptipv6enables daemon's support of ipv6 sockets - it will listen on :::161 instead of 0.0.0.0:161communitysets SNMP community stringlocationandcontactset those base SNMP attributesdisksandinterfacesspecifies which filesystems and interfaces should be referenced by corresponding management tables.sysNameis set automatically from the Hostname on the main System page of the web GUI
| 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 |
list of filesystems' mountpoints | no | (none) | If defined, mini_snmpd includes this filesystem in output table |
interfaces |
list of network interfaces | no | (none) | If defined, mini_snmpd includes this interfaces in output table |
¶ Examples
Simple example: enable daemon, excluding ipv6 support, defining other parameters.
config mini_snmpd
option enabled 1
option ipv6 0
option community public
option location ''
option contact ''
option disks '/tmp,/jffs'
option interfaces 'wlan0,br-lan,eth0.1,eth0' # Max 4
Example of the snmpwalk:
$ snmpwalk -m ALL -v 2c -c public 192.168.1.1
SNMPv2-MIB::sysDescr.0 = STRING:
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (17915) 0:02:59.15
SNMPv2-MIB::sysContact.0 = STRING:
SNMPv2-MIB::sysName.0 = STRING: OpenWrt
SNMPv2-MIB::sysLocation.0 = STRING:
RFC1213-MIB::ifNumber.0 = INTEGER: 4
RFC1213-MIB::ifIndex.1 = INTEGER: 1
RFC1213-MIB::ifIndex.2 = INTEGER: 2
RFC1213-MIB::ifIndex.3 = INTEGER: 3
RFC1213-MIB::ifIndex.4 = INTEGER: 4
RFC1213-MIB::ifDescr.1 = STRING: "wlan0"
RFC1213-MIB::ifDescr.2 = STRING: "br-lan"
RFC1213-MIB::ifDescr.3 = STRING: "eth0.1"
RFC1213-MIB::ifDescr.4 = STRING: "eth0"
RFC1213-MIB::ifOperStatus.1 = INTEGER: up(1)
RFC1213-MIB::ifOperStatus.2 = INTEGER: up(1)
RFC1213-MIB::ifOperStatus.3 = INTEGER: up(1)
RFC1213-MIB::ifOperStatus.4 = INTEGER: up(1)
RFC1213-MIB::ifInOctets.1 = Counter32: 19574486
RFC1213-MIB::ifInOctets.2 = Counter32: 18252147
RFC1213-MIB::ifInOctets.3 = Counter32: 124204634
RFC1213-MIB::ifInOctets.4 = Counter32: 126247040
RFC1213-MIB::ifInUcastPkts.1 = Counter32: 91002
RFC1213-MIB::ifInUcastPkts.2 = Counter32: 90354
RFC1213-MIB::ifInUcastPkts.3 = Counter32: 113467
RFC1213-MIB::ifInUcastPkts.4 = Counter32: 113467
RFC1213-MIB::ifInDiscards.1 = Counter32: 0
RFC1213-MIB::ifInDiscards.2 = Counter32: 0
RFC1213-MIB::ifInDiscards.3 = Counter32: 0
RFC1213-MIB::ifInDiscards.4 = Counter32: 0
RFC1213-MIB::ifInErrors.1 = Counter32: 0
RFC1213-MIB::ifInErrors.2 = Counter32: 0
RFC1213-MIB::ifInErrors.3 = Counter32: 0
RFC1213-MIB::ifInErrors.4 = Counter32: 0
RFC1213-MIB::ifOutOctets.1 = Counter32: 127834842
RFC1213-MIB::ifOutOctets.2 = Counter32: 125363371
RFC1213-MIB::ifOutOctets.3 = Counter32: 19332841
RFC1213-MIB::ifOutOctets.4 = Counter32: 20197296
RFC1213-MIB::ifOutUcastPkts.1 = Counter32: 112239
RFC1213-MIB::ifOutUcastPkts.2 = Counter32: 111021
RFC1213-MIB::ifOutUcastPkts.3 = Counter32: 85992
RFC1213-MIB::ifOutUcastPkts.4 = Counter32: 88600
RFC1213-MIB::ifOutDiscards.1 = Counter32: 0
RFC1213-MIB::ifOutDiscards.2 = Counter32: 0
RFC1213-MIB::ifOutDiscards.3 = Counter32: 0
RFC1213-MIB::ifOutDiscards.4 = Counter32: 0
RFC1213-MIB::ifOutErrors.1 = Counter32: 0
RFC1213-MIB::ifOutErrors.2 = Counter32: 0
RFC1213-MIB::ifOutErrors.3 = Counter32: 0
RFC1213-MIB::ifOutErrors.4 = Counter32: 0
HOST-RESOURCES-MIB::hrSystemUptime.0 = Timeticks: (1547471) 4:17:54.71"
As you see walk doesn't catch on disks for some reason.