As a network engineer transitioning from Getif (which lacks Windows 7/64-bit compatibility), I've extensively tested various SNMP browsers. Here's my deep dive into open-source alternatives that support MIB integration and tree browsing—critical for modern network monitoring.

1. iReasoning MIB Browser (Free Edition)
While not fully open-source, the free version offers:
- Complete MIB tree visualization
- SNMPv1/v2c/v3 support
- Trap receiver functionality
Example connection code snippet:

snmpwalk -v 2c -c public 192.168.1.1 .1.3.6.1.2.1.1.5


2. Net-SNMP Toolkit
The gold standard for CLI-based SNMP operations. Install via:

choco install net-snmp

Key features include:
- Full MIB compilation support
- Cross-platform compatibility
- Extensive scripting capabilities

For custom MIB integration in Net-SNMP, modify snmp.conf:

mibdirs /path/to/your/mibs
mibs +YOUR-MIB-NAME

Pro tip: Always verify MIB compilation with:

snmptranslate -Tp -IR YOUR-MIB-NAME


3. SNMPSoft MIB Browser
Perfect for visual learners with:
- Drag-and-drop OID selection
- Real-time graphing
- Multi-window interface
Bonus: Export walk results to CSV for analysis:

snmpwalk -v 2c -c public 10.0.0.1 .1.3.6.1.2.1.25.2.3.1.6 > disk_usage.csv


Combine these tools with Python for automated monitoring:

from pysnmp.hlapi import *
g = getCmd(SnmpEngine(),
CommunityData('public'),
UdpTransportTarget(('192.168.1.1', 161)),
ContextData(),
ObjectType(ObjectIdentity('SNMPv2-MIB', 'sysDescr', 0)))
print(next(g)[3][0][1])


After Getif's incompatibility with modern Windows systems, many network administrators and developers need robust alternatives. Let's explore some powerful open-source options that support MIB loading and tree navigation while working on 64-bit Windows 7+ systems.

This Java-based tool remains a favorite for its cross-platform compatibility:

// Sample SNMP GET request using iReasoning API
SnmpTarget target = new SnmpTarget();
target.setAddress("192.168.1.1");
target.setCommunity("public");
target.setVersion(SnmpConstants.version2c);

SnmpOID oid = new SnmpOID(".1.3.6.1.2.1.1.1.0");
SnmpResponse response = SnmpSession.get(target, oid);
System.out.println("System Description: " + response.getVariable(oid));

The Windows port of this Unix classic provides command-line power:

# Walking a MIB tree with snmpwalk
snmpwalk -v 2c -c public 192.168.1.1 .1.3.6.1.2.1.1

# Bulk request example
snmpbulkwalk -v2c -c private -Cn0 -Cr10 192.168.1.1 system

When developing SNMP-based applications, test with these tools:

• SNMP Simulator (snmpsim)
• Net-SNMP's snmpd in agentx mode

For developers needing programmatic access:

from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    getCmd(SnmpEngine(),
           CommunityData('public'),
           UdpTransportTarget(('192.168.1.1', 161)),
           ContextData(),
           ObjectType(ObjectIdentity('SNMPv2-MIB', 'sysDescr', 0)))
)

if errorIndication:
    print(errorIndication)
elif errorStatus:
    print('%s at %s' % (errorStatus.prettyPrint(),
                        errorIndex and varBinds[int(errorIndex)-1][0] or '?'))
else:
    for varBind in varBinds:
        print(' = '.join([x.prettyPrint() for x in varBind]))