SNMP

Overview

Simple Network Management Protocol (SNMP) is an internet protocol standard for retrieving real-time operational statistics from servers and infrastructure components. Commonly SNMP-enabled devices include routers, switches, workstations, and firewalls.

Required Packages for Installation

Install the necessary SNMP packages with these commands:

MIB Browser Installation Steps

1. Download mibbrowser_linux_x64.zip from iReasoning.
2. Transfer the zip file to your Linux server.
3. Extract and run the MIB browser:
   shell

   Copy code

   $sudo su
$unzip mibbrowser_linux_x64.zip
$cd Downloads/ireasoning/mibbrowser/
$bash browser.sh


SNMP MIB File Object Names and OIDs

SNMP Agent Configuration

To configure SNMP:

1. Access the Secure Shell, SNMP option, WebUI, or ProviderUI.
2. Enter the following details:
   • Community name (e.g., zwantest; default is public)
   • Destination IP (SNMP server IP)
   • Agent IP (WAN/LAN IP of CPE)
   • Password (CPE password for SNMP Server)

Enabling SNMP

Enable SNMP service via the interface:

Disabling SNMP

Disable SNMP using the same interface:

SNMP Service Management

Start, stop, or check the status of SNMP with:

Editing SNMP Configuration

To update SNMP configurations, use the edit option:

Viewing SNMP Status and SNMPv3 Details

• Displays current SNMP service status and SNMPv3 configuration:

SNMPv3 Configuration

For SNMPv3:

1. Enable SNMP service.
2. Enter SNMPv3 details:
   • Username
   • Password
   • Authentication Protocol (MD5/SHA)
   • Authentication Privacy (AuthPriv/AuthNoPriv)
   • Encryption Protocol (AES/DES)
   • Encryption Key

SNMPv3 Deletion

To delete SNMPv3 user details, enter the username and select delete:

SNMP Server Setup

Prerequisites

1. Install Ubuntu 18.04.
2. Ensure internet connectivity.

MIB Browser and Java Installation

SNMP Server Configuration

1. Launch the MIB browser:
   shell

   Copy code

   $cd Downloads/ireasoning/mibbrowser
$./browser.sh

2. Load custom MIB files:
   • Download from GitLab.
   • Open in MIB browser via File > Load MIBs.
3. Set operation (GET/GETBULK) and agent address in the browser.

Observing SNMP Traps

1. In the MIB browser, go to Tools > Trap Receiver.
2. When a trap is generated, it will appear in the Trap Receiver window with its OID and details.

Note:

• One server can manage multiple agents, but each agent can support only one server.
• Ensure the SNMP server is reachable from the agent.