SevOne

Hi~
Try blow:

To allow SNMP in and out in Windows Defender Firewall, follow these steps:

1. Open Windows Defender Firewall Settings:

   • Type "Windows Defender Firewall" in the Windows search bar and open it.

2. Select "Advanced Settings":

   • In the left pane of the Windows Defender Firewall window, select "Advanced settings".

3. Create an Inbound Rule:

   • In the "Advanced Security" window, select the "Inbound Rules" tab.
   • In the right pane, select "New Rule" to launch the "New Inbound Rule Wizard".

4. Configure the Inbound Rule:

   • In the wizard, select "Port" and click "Next".
   • Select "UDP" or "TCP" (depending on your SNMP configuration) and specify the port number (default SNMP port is 161).
   • Click "Next".

5. Choose the Allow Connection Option:

   • Select "Allow the connection".
   • Click "Next".

6. Specify the Scope of the Rule:

   • Choose "All" (or specify a specific scope if needed).
   • Click "Next".

7. Specify the Name and Description of the Rule:

   • Enter the name and description of the rule (optional).
   • Click "Finish".

8. Create an Outbound Rule (optional):

   • Repeat steps 3-7, but in step 3, select "Outbound Rules".

9. Save and Apply Changes:

   • Ensure to click "Apply" once you have finished configuring the rules.

This allows SNMP traffic to pass through your Windows Defender Firewall. Make sure to consider network security requirements when configuring rules and adjust accordingly based on your network environment.

Original Message:
Sent: Wed February 28, 2024 01:27 AM
From: john cheong
Subject: Window Defender is Blocking my pulling from a window server.

I would like to know how to exclude SNMP polling from Windows Defender blocking. In my scenario, NPM works fine when I turn off the Windows Defender firewall. However, when I turn it on, SNMP is unable to pull any information.

 

In Windows Defender Firewall, I've set up Advanced Settings for Inbound Rules/Outbound Rules to allow SNMP on UDP port 161 (as attached), but it still doesn't work.

 

Is there any method to allow my SNMP pulling to bypass the Windows Defender Firewall?

 

Thank you.

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john cheong
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