SNMP Basics
-
SNMP Explained: Simple Network Management Protocol
A plain guide to SNMP: agents, managers, managed objects, versions and security basics, with links to deeper guides.
-
Using the snmpwalk Command with Examples
A practical guide to the snmpwalk command: syntax, options, narrowing a walk and troubleshooting.
-
SNMPv3 Security: Authentication and Encryption
How SNMPv3 secures network monitoring with users, authentication and encryption, and how to choose a security level.
-
How SNMP Traps Notify You of Problems
An SNMP trap is an alert a device pushes to your monitoring station. Learn what it contains, how it travels and why…
-
SNMPv1, v2c and v3 Compared
A plain comparison of SNMPv1, SNMPv2c and SNMPv3: data types, operations, security models and which to choose.
-
SNMP Port Numbers: 161 and 162 Explained
A plain guide to the SNMP port numbers: UDP 161 for agents, UDP 162 for traps, the optional TCP and TLS ports,…
-
What an SNMP OID Is and How to Read One
An SNMP OID is a dotted number naming one managed value. Here is how the tree works and how to read a…
-
What Is a MIB and How It Maps to OIDs
A MIB is the text module that gives names, types and meanings to the numeric OIDs on a device. Here is how…
-
SNMP Community Strings and Why They Matter
An SNMP community string is a shared password sent with each request in SNMPv1 and SNMPv2c. Learn how it works and how…