Re: couldn't open udp:162 -- errno 98 ("Address already in use")

Hi Riva,

There is already a snmptrapdaemon running with pid '6216' , stop the same
and then run 'sudo snmptrapd -f -Lo -c snmptrapd.conf'

Regards,
Pushpa.T

On Wed, May 17, 2017 at 2:03 PM, riva riv <[email protected]> wrote:

> Hi Experts,
>
> I am trying to receive a trap generated by a cisco router on my VM- Ubuntu
> 14.04. I can do a snmwalk so I guess snmp is working fine but I am not able
> to receive the traps generated by router on my VM.
>
> a@ubuntu:~$ sudo /etc/init.d/snmpd restart
>  * Restarting network management services:
>
>
> a@ubuntu:~$ sudo /etc/init.d/snmpd status
>  * snmpd is running
>  * snmptrapd is running
>
> Here is what I have inside files-
>
> /etc/default/snmpd-
> export MIBS=
> SNMPDRUN=yes
> SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid -c
> /etc/snmp/snmpd.conf'
> TRAPDRUN=yes
> # snmptrapd options (use syslog).
> TRAPDOPTS='-n -On -t -Lsd -p /var/run/snmptrapd.pid'
>
> /etc/snmp/-
>
> snmpd.conf-
> rocommunity public
>
> snmptrapd.conf-
> disableAuthorization yes
>
> snmp.conf-
> mibs:
>
> The command I am running for viewing the traps on VM-
>
> a@ubuntu:/etc/snmp$ sudo snmptrapd -f -Lo -c snmptrapd.conf
> couldn't open udp:162 -- errno 98 ("Address already in use")
>
> I am confused since the port is being used by snmptrap itself-
>
> a@ubuntu:~$ cat /etc/services|grep 162
> snmp-trap 162/tcp snmptrap # Traps for SNMP
> snmp-trap 162/udp snmptrap
> a@ubuntu:~$ sudo netstat -lnp| grep 162
> udp        0      0 0.0.0.0:162             0.0.0.0:*
>       6216/snmptrapd
> a@ubuntu:~$ ps -ef | grep snmptrapd
> root       6216   2076  0 10:43 ?        00:00:00 /usr/sbin/snmptrapd -Lsd
> -p /var/run/snmptrapd.pid
> a    6493   2667  0 11:47 pts/8    00:00:00 grep --color=auto snmptrapd
>
> Is there any way of solving this issue? I have googled a lot and stuck on
> this for days, any help will be very much appreciated.
> Thanks a lot in advance!!
>
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