vi /etc/snmp/snmpd.conf
修改如下两行
com2sec notConfigUser default irunnet
access notConfigGroup "" any noauth exact mib2 none none
去掉下面几行前面的“#”
com2sec local localhost COMMUNITY
com2sec mynetwork NETWORK/24 COMMUNITY
group MyRWGroup any local
group MyROGroup any mynetwork