SNMP

Links

• Tutorials
• Tutorial: snmptranslate
• https://net-snmp.sourceforge.io/wiki/index.php/
• Zabbix and SNMP
• http://www.debianhelp.co.uk/snmp.htm
• How to Configure SNMP Community Strings
• Linux SNMP OIDs for CPU,Memory and Disk Statistics
• The MIBs list

Documentation

OID

https://www.dpstele.com/snmp/what-does-oid-network-elements.php

HOWTO

snmpd on Ubuntu

In /etc/snmp/snmpd.conf:

view   systemonly  included   .1

Using snmpd as snmp proxy

• Using SNMP proxy on Debian
• SNMP Proxy

IP range to call from: 192.168.0.0/16 Hosts to monitor: swa and swb ( 10.1.0.1x )

On the host used as proxy:

view all included .1
group ACCSRV v2c notConfigUser
com2sec -Cn wasrv notConfigUser 192.168.0.0/16 swa
com2sec -Cn wbsrv notConfigUser 192.168.0.0/16 swb
access ACCSRV wasrv any noauth prefix all none none
access ACCSRV wbsrv any noauth prefix all none none
proxy -Cn wasrv -v 2c -c public 10.1.0.11 .1.3
proxy -Cn wbsrv -v 2c -c public 10.1.0.12 .1.3

Then from your 192.168.0.0/16 network:

snmpwalk -v 2c -c swa yoursnmpproxyserver

snmptranslate

Translate OID to name

snmptranslate .1.3.6.1.2.1.1.3.0

SNMPv2-MIB::sysUpTime.0

Translate name to OID

snmptranslate -On SNMPv2-MIB::system.sysUpTime.0

.1.3.6.1.2.1.1.3.0

Tools

snmpwalk

snmpwalk -v 2c  -c public yourhost system(?)

or to show all OIDs

 snmpwalk -v 2c  -c public yourhost

snmpget

snmpget -v1 -c public 192.168.10.17 .1.3.6.1.4.1.318.1.1.25.1.2.1.6.1.1

PowerNet-MIB::uioSensorStatusTemperatureDegC.1.1 = INTEGER: 22

FAQ

Cannot find module (IF-MIB): At line 1 in (none)

apt install snmp-mibs-downloader

download-mibs

FAQ

Install MIB

• Installing and loading MIBs
• Installing net-snmp MIBs on Ubuntu and Debian

apt install snmp-mibs-downloader

Locations

• /usr/share/snmp/mib
• /var/lib/snmp/mibs/
• /usr/share/snmp/mibs/

Error messages

Bad operator (INTEGER): At line 73 in /usr/share/snmp/mibs/ietf/SNMPv2-PDU

See https://serverfault.com/questions/936119/snmp-mibs-on-ubuntu-error-in-mibs

Cannot find module (IF-MIB)

apt install snmp-mibs-downloader

Edit /etc/snmp/snmp.conf:

# mibs: 

and then run

download-mibs