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Old 02-04-2009, 10:43
Alexei Alexei is offline
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Location: Riga, Latvia
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Zabbix does no cache anything, so it is very strange that SNMP recovers after restart of the device. However it looks (?) like a problem on Zabbix side. We need some time to re-produce this. We have no SNMPv3 devices ready for testing at the moment.
Alexei Vladishev
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Old 02-04-2009, 10:47
MichaelM MichaelM is offline
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Posts: 32

Hello Alexei,

if you need, I can provide you with access to a SNMPv3 device if you like, please contact me in private, I'll send you the data than.

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Old 07-04-2009, 17:23
MichaelM MichaelM is offline
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same problem in 1.6.4 ... still willing to support you with remote access to a SNMPv3 device.

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Old 17-06-2010, 10:30
richlv richlv is offline
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please see

at least in one case it has been confirmed that misconfigured snmp devices were to blame
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Old 13-07-2010, 10:58
MichaelM MichaelM is offline
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Posts: 32
Default SNMP stops working ... 1.8.2

Hi there,

I'am still in the exact same spot. Zabbix 1.8.2 on Ubuntu 10.04 is giving me the same "Timeout while connecting to " errors for Funkwerk routers monitored via SNMPv3.

I checked with snmpwalk and all routers have their unique EngineID (., so this shouldn't be an issue here?

This is really somewhat frustrating, because of this I'am not able to roll out Zabbix at the customers site.

Help highly appreciated.

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Old 14-07-2010, 11:41
MichaelM MichaelM is offline
Join Date: Sep 2008
Posts: 32
Default SNMPv3 stops working ... after a while


that's what tcpdump is capturing when it's working and when it stopped:


4128 30540.471396 SNMP report SNMP-USER-BASED-SM-MIB::usmStatsUnknownEngineIDs.0
4129 30540.471746 SNMP get-request IF-MIB::ifInOctets.10001
4130 30540.496987 SNMP get-response IF-MIB::ifInOctets.10001
4131 30542.713568 SNMP get-request
4132 30542.738017 SNMP report SNMP-USER-BASED-SM-MIB::usmStatsUnknownEngineIDs.0
4133 30542.738346 SNMP get-request IF-MIB::ifOutOctets.10001
4134 30542.763166 SNMP get-response IF-MIB::ifOutOctets.10001
4135 30600.536825 SNMP get-request
4136 30600.561639 SNMP report SNMP-USER-BASED-SM-MIB::usmStatsUnknownEngineIDs.0



4137 30600.561976 SNMP get-request IF-MIB::ifInOctets.10001
4138 30600.587664 SNMP report SNMP-USER-BASED-SM-MIB::usmStatsNotInTimeWindows.0
4139 30601.569005 SNMP get-request IF-MIB::ifInOctets.10001
4140 30601.594592 SNMP report SNMP-USER-BASED-SM-MIB::usmStatsNotInTimeWindows.0
4141 30601.841184 SNMP get-request

I don't know if this is any help.

Best regards.

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Old 10-03-2011, 09:58
fjrial fjrial is offline
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Default related??


I'm facing a similar situation:
After a lot of time working without problems, some interfaces from a router (Cisco 7200 SNMP v2) went down (unplug) and went up again (plug).

After this, zabbix is not getting some snmp items from router, but the strange thing is that zabbix is getting the "in traffic" on same interfaces, but not the "out traffic" of the same interfaces.. and on other interfaces is getting the out but not the in traffic...

In zabbix web interface the items are marked as "not supported" but, from zabbix machine I can do a snmpget of that item and get those unsupported values. Trying from web interface to disable/enable again, but no success.

Looking in the logs, I found nothing.. So.. zabbix_server restart fix the problem.. but this is not a nice situation, because I can't know when zabbix is doing this kind of strange things in order to restart it...

Zabbix 1.8.2. compiled against net-snmp (x64)
Cisco 72000 Software (C7200-IK8S-M), Version 12.2(46a)

Any advice on this??
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Old 20-03-2013, 16:15
zalex_ua zalex_ua is offline
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Join Date: Oct 2009
Location: Riga, Latvia. GMT +02
Posts: 1,286

Originally Posted by richlv View Post
please see

at least in one case it has been confirmed that misconfigured snmp devices were to blame
After deep investigations last days I can say for sure that indeed current discussion is all about

There no other reasons.
Make sure that you don't have duplicated EngineID across all monitored SNMPv3 devices.
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