Cisco WS-X6748-SFP Software Guide - Page 640

SNMP Terminology Chapter 36 Configuring SNMP Table 36-1 SNMP Terminology (continued) Term community string data integrity data origin authentication encryption group notification host notify view privacy read view security level security model Simple Network Management Protocol (SNMP) Simple Network Management Protocol Version 2c (SNMPv2c) Definition A text string used to authenticate messages between a management station and an SNMPv1 or SNMPv2c engine. A condition or state of data in which a message packet has not been altered or destroyed in an unauthorized manner. The ability to verify the identity of a user that the message is supposedly sent to. This ability protects users against both message capture and replay by a different SNMP engine, and against packets received or sent to a particular user that uses an incorrect password or security level. A method of hiding data from an unauthorized user by scrambling the contents of an SNMP packet. A set of users belonging to a particular security model. A group defines the access rights for all the users belonging to it. Access rights define the SNMP objects that can be read, written to, or created. In addition, the group defines the notifications that a user is allowed to receive. An SNMP entity to which notifications (traps and informs) are to be sent. A view name (not to exceed 64 characters) for each group; the view name defines the list of notifications that can be sent to each user in the group. An encrypted state of the contents of an SNMP packet; in this state the contents are prevented from being disclosed on a network. Encryption is performed with an algorithm called CBC-DES (DES-56). A view name (not to exceed 64 characters) for each group; the view name defines the list of object identifiers (OIDs) that can be read by users belonging to the group. A type of security algorithm performed on each SNMP packet. There are three levels: noauth, auth, and priv. The noauth level authenticates a packet by a string match of the username. The auth level authenticates a packet by using either the HMAC MD5 or SHA algorithms. The priv level authenticates a packet by using either the HMAC MD5 or SHA algorithms and encrypts the packet using the CBC-DES (DES-56) algorithm. The security strategy used by the SNMP agent. Currently, Cisco IOS supports three security models: SNMPv1, SNMPv2c, and SNMPv3. A network management protocol that provides a method to monitor and control network devices, and to manage configurations, statistics collection, performance, and security. Second version of SNMP. This protocol supports centralized and distributed network management strategies and includes improvements in the structure of management information (SMI), protocol operations, management architecture, and security. 36-2 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 78-13315-02