Hello List,
I have noticed an interesting phenomenon when configuring trap destinations and
I wanted to ask if this is a bug in net-snmp or is it some behavior I simply do
not understand.
I am running a net-snmp version 5.4.2 on an embedded linux system with kernel
2.6.26-2-686.
My /etc/snmp/pvgsnmpd.conf contains the following 2 lines only:
###########################
sysservices 1
rwuser admin noauth
###########################
And before running the agent for the first time I wrote the following to my
/var/lib/net-snmp/pvgsnmpd.conf :
###########################
createUser admin MD5 "administrator"
###########################
This allows me to connect to the agent using username admin and either password
administrator or user admin with no password.
I add trap destinations by adding a line like the following to the
/etc/snmp/pvgsnmpd.conf :
###########################
trapsess -u 'admin' -A '12345678' 192.168.41.28
###########################
Regardless of whether anyone is actually listening for snmp traps or not on
192.168.41.28, the phenomenon is like so:
If the trapsess username is 'admin', then when the trap is being sent out I can
no longer connect to the agent using user:admin pass:administrator.
I can, though, still connect using user:admin and no password. I can also
connect using user:admin password:12345678 (the new password for the trap
destination).
Restarting the agent does not help, only if rewrite the
/var/lib/net-snmp/pvgsnmpd.conf it reverses the situation.
I assume that when the trap is being sent out the saved password for user admin
in the agent changes.
Is this a bug or am I missing something in my understanding of the behavior?
I appreciate your help.
Thanks,
Dave
--
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