Devices that typically support SNMP include cable modems, routers, switches, servers, workstations, printers, and more.
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17 Facts About SNMP
1.
2.
SNMP is widely used in network management for network monitoring.
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3.
SNMP exposes management data in the form of variables on the managed systems organized in a management information base which describe the system status and configuration.
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4.
SNMP is a component of the Internet Protocol Suite as defined by the Internet Engineering Task Force.
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5.
SNMP agents expose management data on the managed systems as variables.
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6.
Rather, SNMP uses an extensible design that allows applications to define their own hierarchies.
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8.
All SNMP messages are transported via User Datagram Protocol.
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9.
SNMP was approved based on a belief that it was an interim protocol needed for taking steps towards large-scale deployment of the Internet and its commercialization.
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10.
The most visible change was to define a secure version of SNMP, by adding security and remote configuration enhancements to SNMP.
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11.
Some SNMP values require specific knowledge of table indexing schemes, and these index values are not necessarily consistent across platforms.
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12.
SNMP is designed to allow administrators to monitor and configure network devices remotely it can be used to penetrate a network.
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13.
SNMP is available in different versions, each has its own security issues.
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14.
SNMP v2 allows password hashing with MD5, but this has to be configured.
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15.
SNMP v2 was specifically developed to provide data security, that is authentication, privacy and authorization, but only SNMP version 2c gained the endorsement of the Internet Engineering Task Force, while versions 2u and 2* failed to gain IETF approval due to security issues.
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16.
SNMP v3 uses MD5, Secure Hash Algorithm and keyed algorithms to offer protection against unauthorized data modification and spoofing attacks.
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17.
Many SNMP implementations include a type of automatic discovery where a new network component, such as a switch or router, is discovered and polled automatically.
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