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Questions tagged [snmp]

SNMP (Simple Network Management Protocol) is an Internet-standard protocol for monitoring and configuring devices on IP networks.

Simple Network Management Protocol (SNMP) is an Internet-standard protocol for monitoring and configuring devices on IP networks.

SNMP is defined by a series of IETF Requests for Comment (RFCs). There are three versions of the protocol: SNMPv1, SNMPv2, and SNMPv3. RFC 3584 is the "Best Current Practice" for handling coexistence of the three protocol versions, and provides a view of interoperability issues between the versions as well as a list of references to the various RFCs that define the different versions.

SNMP generally operates over UDP on IPv4, but several transport mappings are defined in RFC 3417.

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Simulate SNMP traps to test surveillance

I'm trying to use Net-SNMP on Windows to emulate a trap that should trigger an alarm on our surveillance system. This is the setup: Windows 7 client that sends the trap Net-SNMP as software for sending the trap Linux with Adventnet ManageEngine…
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Changed guest vNIC to VMXNet3, can't do SNMP against Cisco ASA devices

Got a head-scratcher here. Either I've found a Windows and/or VMware bug, or I've missed something stupendously simple. [Spoiler - it was stupendously simple.] Our VMware environment is ESXI 5.5. We have a Windows 2012 R2 VM (named BOS-NETMON) that…
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snmpwalk Unknown Object Identifier

I have a device with snmp configured and gives lots of result for snmpwalk -v2c -c public 1.1.1.1 but when i querry a particular section like system or interface it fails as below .... Is there a way to check what all sections are present in the…
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Monitoring Bandwidth Usage (Per Internal IP) - Cisco ASA 5505

I manage a small network with a Cisco ASA 5505 and a shared DSL connection. I would like to be able monitor the bandwidth usage of the various users/devices on my network (by IP address). Can I do that using the ASA? Has anyone got this working? …
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HP ProLiant Gen8 Health Agents and EL6.x - cpqHoMibHealthStatusArray has changed to the value: x

I've noticed that my HP ProLiant Gen8 servers report the following message via email to root (or the destination configured in /opt/hp/hp-snmp-agents/cma.conf) upon restart. Trap-ID=11020 cpqHoMibHealthStatusArray has changed to the value :02 03 02…
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Hardware checks for Dell R820 Servers through Nagios using SNMP

We use Nagios for monitoring. Is there a way to create hardware checks using SNMP MIB for R820 servers running ESXi5.x on them? Right now we are using this python plugin: current python plugin But we can use it no longer due to security policies…
Danila Ladner
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how to get interface traffic snmp information for routers ( cisco, zte, huawei ...)?

I have cisco, zte, huawei routers..How can i get the traffic information of every interfaces of these routers. I donot have mib file of zte and huawei. So, i want a generic mib file which can monitor every interfaces of these routers
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How to disable version 1 and version 2c in snmpd?

Because I just use snmp v3 and want to disable version 1 and version 2c in snmpd. How can I do this?
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Is there a good way to programmatically configure VLANs on a managed switch?

My situation is that my company makes a product that (currently) requires the user to set up a dozen or so VLANs on a managed switch that is dedicated to the exclusive use with our product. Currently, the way it works is this: The user enters his…
Jeremy Friesner
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APC Smart-UPS: remote power shutoff?

Given: A server room containing about two dozen rackmount servers and a PBX. About a dozen APC Smart-UPS 2200s providing power to this equipment. A fire suppression project requiring immediate shutoff of power to all servers in the event that the…
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SNMP OID for VMware Tools on a virtual machine

I have an ESXi host running several VMs. I use snmp to query that host for information. I need to find if VMware Tools is installed on some virtual machine. Is that possible? and If so, which OID is it? In the documentation there are some entries…
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Can Zabbix alert me when an SNMP device does not respond?

Zabbix is capable of monitoring SNMP-capable devices, and even displays their status in its web interface: The green icon indicates that Zabbix is receiving data. The red icon indicates that Zabbix is not receiving data. However, I can't find any…
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HP 5500 switch manual states SNMP traps impact performance and advises against their use unless "necessary" - why?

We just bought two HP 5500-24G-4SFP beasts and I'd like to properly integrate the switches into Nagios. Most of our current monitoring polls actively via SNMP so I figured it would be wise and use the occasion to get snmptrapd/snmptt working so we…
Adrian Frühwirth
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SNMP - Value of CPU processor load not reflecting reality

Trying to plot CPU load on my server, with the following hardware: ProLiant DL360p Gen8 (same behavior on ProLiant DL360 G7). The machine is running VMWare ESXi5.1 To create a CPU spike I run dd if=/dev/zero of=/dev/null, and I know the CPU is…
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SNMP bytes received disagrees with ifconfig

SNMP ifInOctets = 2145342796 - about 2GB. ifconfig: RX bytes:174302710687 (174.3 GB) Interestingly, the sent bytes agree almost perfectly: ifOutOctets: 1002415050 - about 1GB ifconfig: TX bytes:1002418728 (1.0 GB) It's not an SNMP…
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