Configurando e importando MIBs Terceiros

1. INSTALAR SNMP

yum -y install net-snmp net-snmp-utils

2. BAIXAR A MIB

wget http://www.circitor.fr/Mibs/Mib/G/GEPON-OLT-COMMON-MIB.mib -P /tmp/

3. CRIAR A PASTA DE MIBS E COPIA-LA PARA O LOCAL

mkdir -p /usr/local/share/snmp/mibs
grep -q '^mibdirs +/usr/local/share/snmp/mibs' /etc/snmp/snmp.conf 2>/dev/null || echo "mibdirs +/usr/local/share/snmp/mibs" >> /etc/snmp/snmp.conf
cp /tmp/GEPON-OLT-COMMON-MIB.mib /usr/local/share/snmp/mibs

4. SE O SO FOR UBUNTU, NECESSÁRIO INSTALAR PACOTE ABAIXO

apt-get install snmp-mibs-downloader

5.HABILITAR SNMPD E REINICIAR ZABBIX

systemctl start snmpd 
systemctl enable snmpd
systemctl restart zabbix-server