I recently downloaded and installed Net-SNMP 5.4.1 on my RHEL4 development
box at work. I configured snmpd to send SNMPv3 traps to localhost, and
snmptrapd successfully received them. I also wrote an agentX subagent that
was able to send traps via the API.
The target platform for my project uses RHEL5. Therefore, it would be ideal
to use Net-SNMP 5.3.1 because that is the version offered by the Red Hat
rpm. However, I am not able to successfully configure Net-SNMP to
send/receive SNMPv3 traps for version 5.3.1.
I have successfully configured 5.3.1 to send and receive SNMPv2c traps.
Evidence of this is the receipt of a coldStart trap by snmptrapd, sent from
snmpd. Additionally, my agentX subagent works correctly, so I know I am
using compatible API calls.
After many hours of combing through the mailing lists, trying different
configurations, reading RFCs and analyzing packets with WireShark, I am
unable to successfully configure v3 traps for 5.3.1, and I still do not have
a definitive answer to my question:
***
Is it possible to configure Net-SNMP 5.3.1 to successfully send and receive
SNMPv3 traps? If so, how?
***
Below I have included the files that successfully configured v3 traps for
Net-SNMP 5.4.1 but have failed for 5.3.1. Note, I have tried numerous
configurations with the –e and –E flags with no luck. I have also
successfully sent/received SNMPv3 traps via the command line app snmptrap.
*** /etc/snmp/snmpd.conf ***
engineIDType 3
rouser myUser priv
trapsess –v 3 –u myUser –a SHA –A myAuthKey –x AES –X myPrivKey –l authPriv
localhost
master agentx
agentXSocket /var/agentx/master
*** /var/net-snmp/snmpd.conf ***
createUser myUser SHA myAuthKey AES myPrivKey
*** /etc/snmp/snmptrapd.conf ***
authUser log,execute,net myUser priv
*** /var/net-snmp/snmptrapd.conf ***
createUser –e 0x<engineID> myUser SHA myAuthKey AES myPrivKey
Any help is greatly appreciated.
Cheers
Johnny
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