SNMP to query the router to collect information.
SNMPv3 and illustrates some basic techniques for using
This chapter discusses how to configure the The JUNOS software supports SNMP Versions 1, 2c, and 3. SNMPv3 is currently not used much because it is fairly new and only a few network device manufacturers and network management system (NMS) vendors support it. (VACM) to define access to the management information. SNMPv3 uses a user-based security model (USM) for authentication, data integrity, message replay protection, and protection of the message payload, and a view-based access control model RFCs 3410 through 3418), defines stronger security features, including authentication for accessing network devices and encryption of SNMP packets. The newest version, SNMP Version 3 (SNMPv3), introduced in 1999 ( SNMPv2 is currently the most commonly deployed version of SNMP. For security, this version supports community strings, which act as text-based passwords for determining how SNMP managers can access the data on SNMP agents.
GetBulk operation for more efficient retrieval of large amounts of data, and support for 64-bit counters. This version contains all the proposed SNMPv2 enhancements except for the security features, including more detailed error codes, addition of the A revised version, referred to asĬommunity SNMPv2, or SNMPv2c, was later approved by the IETF ( However, SNMPv2 was not widely accepted because the IETF did not reach consensus on the security features. SNMP Version 2 (SNMPv2) was proposed in 1993 to improve performance, manager-to-manager communications, and security. RFC 1157), defines the architecture and framework for SNMP. The first version of SNMP, Version 1 (SNMPv1 SNMP was first introduced in the late 1980s and is now widely supported. SNMP) is an Internet standard protocol for remotely managing routers, switches, servers, workstations, and other devices on an IP network.