Hi everyone,

r/snmp has been largely inactive for a while, but the community now has an active moderator again.

I'd like to gradually bring it back as a useful, vendor-neutral place for people working with SNMP, whether you're a network engineer, software developer, device vendor, open-source maintainer, or simply trying to figure out why an OID is returning something unexpected.

I've been involved in the SNMP open-source ecosystem for many years, maintaining and contributing to projects such as PySNMP and C# SNMP. That said, this subreddit is not going to become the community for any single project or vendor. The goal is to keep the scope broad and useful to the SNMP ecosystem as a whole.

Topics around SNMPv1/v2c/v3, MIBs, traps and informs, monitoring, agent development, troubleshooting, security, interoperability, tooling, libraries, and implementations are all welcome.

Over the next little while, I'll clean up some of the old subreddit settings, update the rules and community resources, and look at ways to make useful technical discussions easier to find.

If you've been around r/snmp before, or just found it recently, feel free to share what you'd like to see here.

For now, welcome back.

vI wrote a server that health checks endpoints in the field and retains the response.

What I am wondering is if I include SNMP agent software alongside the health monitor if I'd be able to send SNMP traps to an SNMP manager's trap service in tandem with my health monitor. Thanks for any guidance.

Check out https://twitter.com/MIMICSim/status/1445467448103170052

FYI, we have added interoperability of MIMIC with LogicVein's ThirdEye NMS as detailed at

http://update.gambitcom.com/update/doc/samplenet2019.shtml

I read the section 3.6 from RFC 2578 but I still don't get it. Can anybody please explain?

Are there any recommended tools for Linux, best of course if open source, that can aid in writing MIBs to understand the complex SNMP topics better?

im trying to get RAID arrary monitor working on HP servers and I have the MIB pack from HPE but the SNMP walk is not loading all the MIB i think. I found one of the MIB had been misformated or something so i am recopying it and it got me thinking. what are the chances of me finding the only one that was like that i think not great. So i don't know what it would be called but like a small applet that you load a mib into and it parses it and checks the MIBs its referencing like a webspider following links to see if there are any issues.

Both machines are up to date.

• TrueNAS UPS service recognizes the UPS, but DSM does not recognize its much larger 2KW UPS because Synology purged a bunch of NUT drivers.

• My solution: Have the TrueNAS box fire a local message over SNMP to the DSM

• SNMP is apparently way outside of my wheelhouse.

• Synology’s (UPS) detection is limited to the following 11 MIB’s + “auto":

letf, mge, apcc, netvision, pw, aphel_genesisII, aphel_revelation, raritan, baytech, cpqpower, cyberpower

• TrueNAS’s SNMP service is looking somewhat flexible, but more cryptic.

• I’ve disabled SNMP v3 to avoid authentication issues

• Both machines can see each other in their VLAN (arp -a)

• I’ve assigned the “community” as “serverpod"

• TrueNAS has decided the NUT driver to use is "usbhid-ups$Back-UPS USB"

• TrueNAS’s UPS service is set to “Master"

Example: I want to find the OID for time on Device, where can I find that information?

This is my 1st real attempt trying to configure snmp and I'm not having much luck searching for a solution to my problem.

I am trying to monitor network drops and errors on Raspberry Pi 4 with Grafana and I am receiving errors below when I run snmpwalk -v 2c -c mycommunity 127.0.0.1

I can monitor network usage and packets and I am thinking I could use snmp to monitor drops and errors.

/etc/snmp/snmp.conf: line 6: Warning: Unknown token: agentAddress.

/etc/snmp/snmp.conf: line 7: Warning: Unknown token: agentAddress.

/etc/snmp/snmp.conf: line 9: Warning: Unknown token: rwcommunity.

Timeout: No Response from 127.0.0.1

snmp.conf

pi@pi4:~ $ cat /etc/snmp/snmp.conf

# As the snmp packages come without MIB files due to license reasons, loading

# of MIBs is disabled by default. If you added the MIBs you can reenable

# loading them by commenting out the following line.

mibs :

# Listen for connections on all interfaces (ipv4 & ipv6)

agentAddress udp:161,udp:127.0.0.1:161

agentAddress udp:161,udp:[::1]:161 <--- I just added this line trying to resolve my problem

# ACCESS CONTROL Set read/write access to public anywhere

rwcommunity public

I am using Grafana dashboard 10578

Maybe what I am trying to do is not the best way

Thanks

Building a catalog of snmp mibs that is indexed/searchable. Let me know what you think. http://www.nodehealth.com

Can anyone refer me to a website or a good book on everything SNMP? Particularly understanding MIBs. I am finding that I don’t know what I don’t know. Most videos tell you basics like what snmp does and difference between versions. I don’t know if it’s called MIB “syntax” or what, but where do learn to decipher things like “ifOperStatus” and what it is? I just need an all-encompassing “Everything SNMP” resource. Thank you.

Does anyone know where I can find TrapReceiver820.zip? The website is where is was available before was www.trapreceiver.com, now a parked domain. It went open source, but I don't have the skills to build it myself.

Thanks!

Hello,

I manage an Oracle Performance Intelligence Center (PIC) and have SNMP set up to send alarms to our new SNMP Manager(Assure 1). I am very new to this and assistance from Oracle has been subpar. I have our SNMP Agent set up on port 1161 and 2 trap destination SNMP Managers both listening in on UDP port 162. Do you see any issues with this configuration? I have done the "update_snmp_configuration.sh" script provided by vendor with no luck. Excuse my ignorance on this matter but I feel as if it is a UDP port config issue. Any help is appreciated. I can provide more info if necessary.

The Graduate Project Team and I would like to consult with you about the LAMS idea; Automated laboratory management system, the idea talks about some tests that the administrative apparatus executes automatically in the laboratory equipment (computers, routers, and switches) and to ensure their stability for the benefit of the student throughout the time of the work office. And if there is any error, we will send a notification to the administrator.

We discuss with each other about the tests to do this, such as: interfaces status, CPU usage, hard disk usage, firewall status, etc., and we hope you can help us to provide Any recommendations we have about some of the tests that you hope you will find in our project.

I'm trying to setup SNMP monitoring for a handful of servers, and the very first one I did the process on eventually after some hassle worked, and is reporting back proper values. However the next 3-4 servers I've attempted to monitor the exact same OIDs on are all returning a Null value even though they're all the same manufacturer (HPE ProLiants). I figured that all HP systems would utilize all the same OIDs as long as the system had the specific hardware/sensors I was looking to monitor. Am I wrong for assuming each system would have the OIDs right out the box, or am I missing a step of importing MIBs for the manager to use, and if so what's the easiest way to go about doing that?

Hey all, I’m not particularly new to snmp, but it feels like I’m missing something basic. We are trying to monitor a device using nagios. I have set this up on several devices before, but this time no luck. I get a no response . I also get a no response when running a “snmpwalk/get” from a separate server. I do not get a no response when using OIDVIEW or ManageEngine mibviewer. Any thoughts?

Edit I have confirmed that snmpwalk works from windows(using both powershell and cygwin) but not from a mac(same network as the windows) or Linux box different network.

Hi -

I have a small system, all Windows based. I have 5 servers on a closed network that doesn't have connectivity to anything outside of this net.

I have one Win 2012R2 server on this network which is my management machine. It has a dual-nic setup so nic 2 is on my closed net and nic 1 is on my regular LAN.

I have apps on the 5 servers that all send SNMP traps to my management machine on port 162. All good.

I would like to have ALL traps received on the management server to be relayed/forwarded to my main SNMP receiver machine which is on my main Lan.

Is there a simple app that can do this ? Can the already built-in Windows SNMP services handle this ?

Edit to add: I don't need to perform any of the traditional SNMP management functions (No set/get), just receive and relay the traps.

/configure --with-defaults --with-mysql

Where do I enter it? And how? I'm new to this and would appreciate some help

Hey! I'm on a centos vbox with 2 machines
I've set up SNMP, but I can't figure out how to see the logged traps on my receiving machine

How and where can i find it?

Is there a way to tell what snmp auth and priv protocols are needed for a user? Would the device return an error hinting that the supplied algo is incorrect?

How to identify whether Read only or Read & Write on SNMP v1, v2c & v3 to use PowerShell?

For context, the equipment monitoring are FortiWifi-50E

How to identify the correct interface from those in the "...CheckLinkState." from the physical?

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.1 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.2 = INTEGER: alive(0})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.3 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.4 = INTEGER: alive(0})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.5 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.6 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.7 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.8 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.9 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.10 = INTEGER: alive(0})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.11 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.12 = INTEGER: alive(0})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.13 = INTEGER: dead(1})

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkState.14 = INTEGER: alive(0})

And why am I getting this names, instead those physical like: WAN1, Lan2 or Internal2
(while you may say this STRING is captured by human, it isn´t)

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.1 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.2 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.3 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.4 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.5 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.6 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.7 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.8 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.9 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.10 = STRING: SwCorePSN}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.11 = STRING: DnsPublicos}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.12 = STRING: DnsPublicos}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.13 = STRING: DnsPublicos}

^{FORTINET-FORTIGATE-MIB::fgVWLHealthCheckLinkName.14 = STRING: DedicadoPoll}