snmpd agent sends duplicate traps
- by jsnmp
I am on Ubuntu 10.04.4 LTS, and I cannot upgrade to a higher version.
I have installed the snmpd agent (NET-SNMP version 5.4.2.1) with an apt-get install snmpd command.
When an event occurs which sends a trap, two traps are sent for each such event instead of one.
For example, when I shut down the agent with command /etc/init.d/snmpd stop, two shutdown traps are sent to the destination host. If I then start back up the agent with command /etc/init.d/snmpd start, then two cold start traps are sent to the destination host.
Is this a known issue? Is there a fix for this, or is there a configuration change that is needed to prevent the sending of the duplicate trap?
These are the contents of the /etc/snmp/snmpd.conf file:
rocommunity public
authtrapenable 1
trap2sink <trap destination hostname> public
These are the contents of the /etc/default/snmpd file:
# This file controls the activity of snmpd and snmptrapd
# MIB directories. /usr/share/snmp/mibs is the default, but
# including it here avoids some strange problems.
export MIBDIRS=/usr/share/snmp/mibs
# snmpd control (yes means start daemon).
SNMPDRUN=yes
# snmpd options (use syslog, close stdin/out/err).
SNMPDOPTS='-Ls3d -Lf /dev/null -u snmp -p /var/run/snmpd.pid -c /etc/snmp/snmpd.conf'
# snmptrapd control (yes means start daemon). As of net-snmp version
# 5.0, master agentx support must be enabled in snmpd before snmptrapd
# can be run. See snmpd.conf(5) for how to do this.
TRAPDRUN=no
# snmptrapd options (use syslog).
TRAPDOPTS='-Lsd -p /var/run/snmptrapd.pid'
# create symlink on Debian legacy location to official RFC path
SNMPDCOMPAT=yes
