The latter includes instances such as someone logging on, the device powering up or down, or a wide variety of other problems that would need this type of investigation. There are two modes of operation with SNMP - get requests (or polling) where one device requests information from an SNMP enabled device on a regular basis (normally using UDP port 161), and traps where the SNMP enabled device sends a message to another device when an event occurs (normally using UDP port 162). By default, it is a UDP based protocol where communication is based on a 'fire and forget' methodology in which network packets are sent to another device, but there is no check for receipt of that packet (versus TCP when a network packet must be acknowledged by the other end of the communication link). SNMP has gone through several revisions to improve performance and security (version 1, 2c and 3). They can be quite confusing and complicated to set up the first time you go through the process, but when you understand what is going on, everything should make more sense. Please read our terms of use before using the site.We have various articles already in our documentation for setting up SNMPv2 trap handling in Opsview, but SNMPv3 traps are a whole new ballgame. The trademarks like Java, Spring, Spring Framework, Spring Web Flow, Oracle, SNMP, Shell Scripting, Log4j and other trademarks are property of their respective owners. ANY COPYRIGHT INFRINGEMENT ON THE ARTICLES/CONTENT POSTED IN TECHDIVE.IN IS PURELY UN-INTENTIONAL AND NO LIABILITY CAN BE MADE AGAINST TECHDIVE.IN OR ITS CONTRIBUTORS.
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