Re: OpenNMS not seeing incoming SNMPv3 traps

Jonathan Heard <[email protected]> Mon, 11 Jun 2018 11:09:09 +0100
Newsgroups	gmane.network.opennms.general
Message-ID	<[email protected]>
Hi Oleksiy,

 Â Â  Since upgrading OpenNMS a while back, I recently discovered that 
SNMPv3 traps we no longer getting through... I think it was version 21.2 
and we've just upgraded to 22.0 so it's on my to-do list to recheck 
SNMPv3 traps and see if it's working again.

What version are you using?

Thanks

Jonathan


On 09/06/18 19:20, Oleksiy Zhukovsky wrote:
>
> Hi All!
>
> I am setting up OpenNMS to listen to a stream of SNMP traps from an 
> external EMS and ran into an issue. The OpenNMS instance has been 
> configured to receive SNMP v3 traps and I can successfully receive 
> traps I am sending from the server where OpenNMS is installed, however 
> OpenNMS doesnÂ’t see any traps coming from outside.
>
> At first it seemed like a firewall issue, but I can see the incoming 
> traps via Wireshark on the same machine, so the packets are not 
> dropped. IÂ’ve enabled debug-level logging for trapd and the log 
> doesnÂ’t show any activity when I see a new trap from EMS appear in 
> Wireshark. Either I am missing some piece of configuration, or there 
> is a deeper firewall-related issue at work here. Just case, here is 
> the iptables configuration I have at the moment. Please let me know 
> what other relevant pieces of configuration can help with troubleshooting.
>
> Chain INPUT (policy ACCEPT 891K packets, 285M bytes)
>
> pkts bytes targetÂ Â Â Â  prot opt in outÂ Â Â Â  sourceÂ Â Â Â Â Â Â Â Â Â Â Â Â Â  
> destination
>
> Â Â Â Â 0Â Â  Â Â 0 ACCEPTÂ Â Â Â  udpÂ  --Â  enp0s25 *Â Â Â Â Â Â  0.0.0.0Â Â Â Â Â Â Â Â Â Â Â Â Â  
> 0.0.0.0/0Â Â Â Â Â Â Â Â Â Â Â  udp dpts:161:162
>
> Â Â Â  0Â Â Â Â  0 ACCEPTÂ Â Â Â  udpÂ  --Â  enp0s25 *Â Â Â Â Â Â  0.0.0.0/0Â Â Â Â Â Â Â Â Â Â Â  
> 0.0.0.0/0Â Â Â Â Â Â Â Â Â Â Â  udp spts:161:162 dpts:1024:65535 state ESTABLISHED
>
> Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
>
> pkts bytes targetÂ Â Â Â  prot opt in outÂ Â Â Â  sourceÂ Â Â Â Â Â Â Â Â Â Â Â Â Â  
> destination
>
> Chain OUTPUT (policy ACCEPT 949K packets, 341M bytes)
>
> pkts bytes targetÂ Â Â Â  prot opt in outÂ Â Â Â  sourceÂ Â Â Â Â Â Â Â Â Â Â Â Â Â  
> destination
>
> Â Â Â Â 0Â Â Â Â  0 ACCEPTÂ Â Â Â  udpÂ  --Â  * *Â Â Â Â Â Â  0.0.0.0/0Â Â Â Â Â Â Â Â Â Â Â  
> 0.0.0.0Â Â Â Â Â Â Â Â Â Â Â Â Â  udp dpts:1024:65535
>
> Â Â  96 14276 ACCEPTÂ Â Â Â  udpÂ  --Â  * *Â Â Â Â Â Â  0.0.0.0/0Â Â Â Â Â Â Â Â Â Â Â  
> 0.0.0.0/0Â Â Â Â Â Â Â Â Â Â Â  udp spts:1024:65535 dpts:161:162 state 
> NEW,ESTABLISHED
>
> Thanks in advance for the assistance.
>
> Best regards,
>
> **
>
> *Oleksiy Zhukovsky*
>
>
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