In this article we will discuss SNMP, will make brief discussion on SNMP, last article we discuss about Telnet.

Simple Network Management Protocol is an Internet Standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device behavior.

SNMP works by sending messages, called protocol data units (PDUs), to devices within your network that “speak” SNMP. These messages are called SNMP Get-Requests. Using these requests, network administrators can track virtually any data values they specify.

Simple Network Management Protocol (SNMP) is an application-layer protocol used to manage and monitor network devices and their functions. Most stacks these days can actually use both TCP and UDP. As for sending TRAPs, yes TRAPs are unreliable because they’re not acknowledged. However, SNMP INFORMs are an acknowledged version of a SNMP TRAP.

Don’t allow SNMP to compromise network securitySNMP provides an easy way for administrators to get topology information about their networks and even provides some management of remote devices and servers. SNMP is inherently insecure because SNMP messages are not encrypted.

SNMP-TRAP allows the agent to send information about itself to the manager on port UDP/162. TCP can be used for both 161/162, but UDP tends to be more common. Typically the agents are configured in read-only or read-write mode.


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