Re: SNMP traps via Minion not working

Hi,

I (and others) have had the exact same experience.  @mobius in
chat.opennms.com suggested to create an
/opt/minion/etc/org.opennms.netmgt.trapd.cfg containing:

trapd.listen.port = 162
trapd.listen.interface = 0.0.0.0


...and then restarting the minion, to instead bind it directly to 162
and bypassing all the firewalld / iptables BS.

It worked for me.

Dino

On Tue, Feb 13, 2018 at 4:31 AM, Marc Doesburg <[email protected]> wrote:
> Hello All,
>
>
>
> I'm having trouble setting up SNMP traps using Minion.
>
>
>
> The Minion is setup and OpenNMS can query SNMP and is able to get the SNMP
> information out of the systems that are monitored.
>
>
>
> The problem is that the Minion doesn't seem to get the SNMP traps on
> 127.0.0.1:1162. When I tcpdump the ens160 interface (Centos7) I can see the
> traps coming in on port 162. But when I do a tcpdump of the lo interface I
> do not see any data coming in on port 1162.
>
>
>
> The Minion (Java) is listening on port 1162 and firewalld rules are setup:
>
>
>
> public (active)
>
>   target: default
>
>   icmp-block-inversion: no
>
>   interfaces: ens160
>
>   sources:
>
>   services: dhcpv6-client ssh
>
>   ports: 514/tcp 162/udp 514/udp 162/tcp
>
>   protocols:
>
>   masquerade: yes
>
>   forward-ports: port=514:proto=udp:toport=1514:toaddr=127.0.0.1
>
>         port=162:proto=udp:toport=1162:toaddr=127.0.0.1
>
>         port=514:proto=tcp:toport=1514:toaddr=127.0.0.1
>
>         port=162:proto=tcp:toport=1162:toaddr=127.0.0.1
>
>   source-ports:
>
>   icmp-blocks:
>
>   rich rules:
>
>
>
> I even tried to setup firewalld on lo but that doesn't work either:
>
>
>
> trusted (active)
>
>   target: ACCEPT
>
>   icmp-block-inversion: no
>
>   interfaces: lo
>
>   sources:
>
>   services:
>
>   ports: 1162/udp 1162/tcp 1514/udp 1514/tcp
>
>   protocols:
>
>   masquerade: no
>
>   forward-ports:
>
>   source-ports:
>
>   icmp-blocks:
>
>   rich rules:
>
>
>
> I think it's an CentOS issue somewhere... But I just can't find the
> problem...
>
>
>
> If someone can help me with this it would be awesome!
>
>
>
> Best regards,
>
> --
>
> Marc D.
>
> Real is just a matter of perception
>
>
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