Hello,
can anyone check what i am doing wrong ? I want to test if my newly installed vro can receive snmp traps. Steps i have taken:
1. Install vro 8.0.1
2. Auth via vc sso
3.Added a device (192.168.1.97) - my laptop
4.Ran workflow - Wait for a trap on all devices , wait for a trap on a snmp device(pointing to my laptop , port 4000).
When reunning wait for a trap o nall devices i am assuming that is awaiting for a trap on port 4000 as this is the default, when running via a snamp device i have sent snmp device port 4000, public.
i run from my laptop:
C:\SnmpTrapGen>SnmpTrapGen.exe -r:192.168.1.150 -t:10 -c:"public" -to:.1.3.6.1.2.1.1.4.0 -p:4000 -v:2c
SnmpTrapGen v1.1 - Copyright (C) 2009 SnmpSoft Company
[ More useful network tools on http://www.snmpsoft.com ]
OK
The workflow is still waiting.
I have also ran a python script directly from the vRO 8.0.1 appliance itself
root@vro [ ~ ]# cat sendsnmptolocalvro4000.py
from pysnmp.hlapi import *
from pysnmp import debug
debug.setLogger(debug.Debug('msgproc'))
next(sendNotification(SnmpEngine(),
CommunityData('public'),
UdpTransportTarget(('192.168.1.150', 4000)),
ContextData(),
'trap',
# sequence of custom OID-value pairs
[ObjectType(ObjectIdentity('1.3.6.1.2.1.1.1.0'), OctetString('my string')),
ObjectType(ObjectIdentity('1.3.6.1.2.1.1.3.0'), Integer32(42))]))
Also nothing happens. The workflow is not being interrupted in anyway, indicating that he has received the trap.
I have set up a trap receiver on other node in the network and those 2 script are sending it ok. from vRO appliance the python script can trigger the trap on my windows machine running snmpb.
Any idea if i have missed anything ? I checked 2 books, few tutorials and i think i am doing exactly what others but its just not working. Firewall is not the case since the python is even running locally from the vRO + its flat home network , no fw/gw.
![y1.png]()
![y2.png]()
I can send snmp trap from vRO to my laptop snmpb
![y3.png]()
I have also configured vcenter vc01.greg.labs to send snmp traps to the VRO + my laptop with snmpb
![y4.png]()
VC alarm is triggered when VM is created. IT sents 1 trap to my laptop +1 trap to vRO. And VRO is not handling it .
![y5.png]()
vRO trap host configured with port 4000 and is listening
Trap Host (Online)
| port | 4000 |
|---|
| display name | Trap Host (online) |
|---|
| @fullType | SNMP:TrapHost |
|---|
Edit: I have also deployed vRO 7.6, same config, everything 1:1 as in 8.0.1 case , and here it worked all as expected, waiting for traps on 4000 port, and i have generated one from my laptop using snmptrapgen and workflow has triggered (listen for snmp trap on all devices). So is there something i should know about 8.0.1 ? Some extra steps in order to configure it ? Are we supposed to use 8.0.1 ?
