ICP DAS USA NMC-9181 Installation guide

FAQ Manual
Version 1.0.2 Sep 2022
NMC-9181
Network Management Controller

NMC-9181 User Manual Version 1.0.2 Page：2
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Table of Contents
1. FAQ.......................................................................................................................................4
Q01: An error message appears during [Add Device] [Cannot ping 192.168.xxx.xxx] ............................4
Q02: An error related to [SNMP] occurred during [Add Device]. ............................................................6
Q03: How to import SNMP MIB files?....................................................................................................11
Q04: How to use Google SMTP to send a letter?...................................................................................13
Q05: How to clean up LibreNMS log files?.............................................................................................16
Q06: How to Add Device? ......................................................................................................................17
Q07: How to Change Your IP Address on Linux?....................................................................................20
Q08: How to Setting Display mode on Linux?........................................................................................21
Q09: How to set up LINE Notify for alert transmission and rules ? .......................................................25
Q10: How to set the alarm rules for SNMP Trap ? .................................................................................30
Appendix A. Revision History.................................................................................................33

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Important Information
Warranty
All products manufactured by ICP DAS are under warranty regarding
defective materials for a period of one year, beginning from the date of
delivery to the original purchaser.
Warning
ICP DAS assumes no liability for any damage resulting from the use of this
product.ICP DAS reserves the right to change this manual at any time
without notice. The information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is assumed by ICP DAS
for its use, not for any infringements of patents or other rights of third parties
resulting from its use.
Copyright
Copyright @ 2021 by ICP DAS Co., Ltd. All rights are reserved.
Trademark
Names are used for identification purpose only and may be registered
trademarks of their respective companies.
Contact us
If you have any problem, please feel free to contact us. You can count on us for
quick response.
Email: [email protected]

NMC-9181 FAQ Manual Version 1.0.2 Page：4
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1. FAQ
Q01:An error message appears during [Add Device] [Cannot ping 192.168.xxx.xxx]
A01: Common reasons for the device to disable IPV6 or deny access to NMC-9181, the exclusion
method is based on the example of windows 10 OS operation, there are two methods, please refer to
the following instructions to set
1. Public network firewall is off.
Step1
Step2

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2. Go to [Advanced Settings] > [Inbound Rules] > [File and Printer Sharing(ICMP4-In)] > [Check Enable]
Step1:
Step2
Step3

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Step4
Q02: An error related to [SNMP] occurred during [Add Device].
A02: The common cause is that the device is not installed with SNMP or the SNMP setting is wrong.
The user must confirm the detailed SNMP setting, the exclusion method is based on the example of
windows 10 OS operation, please refer to the following instructions to set.
1. [Settings] > [Update and Security] > [For Developers] > Developer Mode [On]

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Step1
Step2
2. [Settings] > [Apps] > [Optional Features] > [New Features]> Find Simple Network Management
Protocol (SNMP)> [Install]
Step1

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Step2
Step3
Step4
3. Please go to [Windows Administrative Tools] > [Services] > [SNMP Service] > Confirm whether to
enable
Step1

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Step2
Step3

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4. Click [SNMP Service] > Go to [Security] > [Accept SNMP packets from these hosts] > [Add IP of
NMC-9181].
Step1
Step2: Add NMC-9181 IP

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5. Click [SNMP Service] > Click [Traps] tab > enter [Community name] > Click [Add to list] > Trap
destinations [Add IP of NMC-9181].
Step1:
Step2: Add NMC-9181 IP
Q03: How to import SNMP MIB files?
A03:Please follow the instructions below to set up
Step1: Login as [ icpdas ], the default password is [ icpdas ]
Step2: Open the terminal and enter [su librenms] , the default password is [ D32fwefwef ]

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Step3: Users can type [ cd opt/librenms/mibs ] to go to the mibs folder, or type [ nautilus ] to open
the file manager operation to access the mibs folder.
Step4: Copy the .MIB file to the mibs folder
*Note:
1.If the device has MIBs available and you use it in the detection then you can add these in. It is
highly recommended that you add mibs to a vendor specific directory. For instance HP mibs are in
mibs/hp. Please ensure that these directories are specified in the yaml detection file, see mib_dir

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above.
2. Do not delete files randomly to avoid errors.
Step5: Then click the gear icon at the top right of the device and then click [ Rediscover Device ] to
let LibreNMS scan again.
*Note:
1. Librenms will grab the device information based on the yaml file in the [opt/ librenms
/includes/definitions] directory and the sysObjectID in the specified folder in mib_dir.
2. mib_dir can only specify one folder.
3. For details, please refer to the link below
https://docs.librenms.org/Developing/os/Initial-Detection/
Q04: How to use Google SMTP to send a letter?
A04:Please follow the instructions below to set up.
Step1: Login to Google and go to Google security settings page.

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Step2: Enable [ Two-step verification ]
*Note: In this process, you need to use your phone for verification.
Step3: Set [ Application Password]
Step4: Select the application (MAIL) and device for which you want to generate an application

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password, and then press [Produce].
Step5: Get the application password generated by the system.
*Note
This application password is just like your usual password, which grants full access to your Google
account. You do not need to remember this set of passwords, so please do not write down or
disclose the password to anyone who knows it.

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Step6: To [Global Setting] > [Alerting] > [Email Options], Set up Google SMTP to send mail.
⚫SMTP host: smtp.gmail.com
⚫SMTP port number: 465
⚫SMTP security mode: SSL/TLS
⚫SMTP authentication: Enable
⚫SMTP account: [your gmail account]
⚫SMTP password: [google application password]
Q05: How to clean up LibreNMS log files?
A05: As the number of devices starts to grow in your LibreNMS install, so will things such as the RRD
files, MySQL database containing eventlogs, Syslogs and performance data etc. Your LibreNMS install
could become quite large so it becomes necessary to clean up those entries. With Cleanup Options,
you can stay in control.

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Step1: To [Global Setting] > [System] > [Cleanup], these options will ensure data within LibreNMS
over X days old is automatically purged. You can alter these individually, values are in days.
*Note
Please be aware that [RRD Files] is NOT set by default. This option will remove any RRD files that
have not been updated for the set amount of days automatically - only enable this if you are
comfortable with that happening. (All active RRD files are updated every polling period.)
Q06: How to Add Device?
A06: To use this software, you must add a new device, please refer to the following link to add a
device.
Method 1: Plugins Network Scan
Step 1: To [ Plugins ] > [ ICPDAS ] > [ Network Scan ] Input your network segment, netmask and
excution cycle.

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Note:
For IP Address and Net Mask settings, please refer to the suggestions on the right.
Step 2: Click and to start automatic search.
Method 2: Add Device
Step 1: To [ Device ] > [ Add Device ] Input Hostname or IP address, and on the SNMP
button.
Step 2: Input the SNMP Version, port and Communication protocols, Port Association Mode choose
“ifIndex”.

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Step 3: Fill in the following information according to the selected version, and then press the
button, all the added devices will be in the device list. After clicking [Devices] -> [All
Devices] in the menu, you can view all the device objects in your control.
Note：
⚫If you “Force add” button choose “OFF”, will perform ICMP or SNMP check, whether the
device supports ICMP or SNMP protocol
⚫If the check fails, please check whether the device is installed or enabled with SNMP.

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Q07: How to Change Your IP Address on Linux?
A07: Please Login Linux and follow the instructions below to set up.
Step1: To Click the icon in the upper right corner and select [Setting]
Step2: To [Setting] > [Network] > Click on the icon of the interface you would like to set an IP
address.
Step3: You will need to select Manual on the IPv4 tab in order to enter your settings.
Select [IPv4] > [Manual] > Update the IP address to what you want it to be > [Apply].