Simple Network Management Protocol (SNMP) is an Internet Standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device behavior. Devices that typically support SNMP include cable modems, routers, switches, servers, workstations, printers, and more. Source
Used for querying the state of SNMP-capable devices.
- Protocol: UDP
- Ports: 161, 162
- Gets useful stats like CPU, network utilization, and firewall hits.
- Uses agents to collect network information from a Management Information Base (MIB)
- Common tool used www.cacti.net
- SNMPv3 is today’s standard and uses safe authentication and encryption
The de facto network management protocol for TCP/IP networks.
Managed Network #
An SNMP system which creates a managed network consists of at least 3 components:
- SNMP manager
- Managed devices
- Management information bases