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CentOS7 config to send SNMPV3 traps

# systemctl stop snmpd

# net-snmp-create-v3-user

Enter a SNMPv3 user name to create:
dialogic
Enter authentication pass-phrase:
dialogic123
Enter encryption pass-phrase:
[press return to reuse the authentication pass-phrase]

adding the following line to /var/lib/net-snmp/snmpd.conf:
createUser geekuser MD5 "dialogic123" DES
adding the following line to /etc/snmp/snmpd.conf:
rwuser dialogic

# systemctl start snmpd

# grep oldEngineID /var/lib/net-snmp/snmpd.conf
oldEngineID 0x80001f888092068415abbd5f5e00000000

Add trapsess in end of snmpd.conf. for example IP of trap receiver is 10.108.1.200
# vi /etc/snmp/snmpd.conf
trapsess -v 3 -l NoauthNoPriv -u dialogic 10.108.1.200:162

# systemctl restart snmpd

Now enter following in your trap manager server
Target Host: IP of trap sender
user name: dialogic
Target Port:161
Security Level: NoAuthNoPriv
Engine ID: 0x80001f888092068415abbd5f5e00000000

check snmpv3 works in trap sender
# snmpwalk -v3 -u dialogic -l authNoPriv -a MD5 -A dialogic123 localhost

 Send test alarm
# snmptrap -v 3 -e 0x80001f888092068415abbd5f5e00000000 -u dialogic 10.108.1.200 '' NET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatNotification netSnmpExampleHeartbeatRate i 123456

Links

https://www.thegeekdiary.com/centos-rhel-6-install-and-configure-snmpv3/
https://access.redhat.com/solutions/969183
https://support.nagios.com/kb/article.php?id=493
https://docs.genesys.com/Documentation/FR/Current/Dep/PrqSNMP




Suresh Hariramani

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