Config: SNMPv1, SNMPv2c and SNMPv3

Comprehensive user manual for CySight Standard and Enterprise Editions.

Config: SNMPv1, SNMPv2c and SNMPv3

Simple Network Management Protocol (SNMP) is an "Internet-standard protocol for managing devices on IP networks". Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks and more.

SNMP is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention. SNMP is a component of the Internet Protocol Suite as defined by the Internet Engineering Task Force (IETF). It consists of a set of standards for network management, including an application layer protocol, a database schema, and a set of data objects.

CySight provides the ability to use SNMPv3 for Device queries as well as communication with trap servers providing a true end-to-end encrypted process.

CySight Screen showing setup of SNMP on a Device using snmpv3

CySight Screen showing setup of SNMP Trap Server using snmpv3

SNMPv3 primarily added security and remote configuration enhancements to SNMP. Due to lack of security with the use of SNMP, network administrators were using other means, such as telnet for configuration, accounting, and fault management.

SNMPv3 defines a secure version of SNMP and also facilitates remote configuration of the SNMP entities.

SNMPv3 provides a secure environment for the management of systems covering the following:
  • Identification of SNMP entities to facilitate communication only between known SNMP entities - Each SNMP entity has an identifier called the SNMPEngineID, and SNMP communication is possible only if an SNMP entity knows the identity of its peer. Traps and Notifications are exceptions to this rule.
  • Support for security models - A security model may define the security policy within an administrative domain or an intranet. SNMPv3 contains the specifications for USM (User-based Security Model).
The SNMPv3 focuses on two main aspects, namely security and administration. The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders.

Simple Network Management Protocol - Wikipedia

Cisco - SNMP Version 3

SNMPv3 Whitepaper