User manual

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Agent. SNMP packets with community names that do not pass the
authentication on the device are simply discarded.
SNMPv2c
SNMPv2c also uses community name for authentication. Compatible with
SNMPv1, it extends the functions of SNMPv1. SNMPv2c provides more
operation modes such as GetBulk; it supports more data types such as
Counter32; and it provides various error codes, thus being able to distinguish
errors in more detail.
SNMPv3
By adopting User-based Security Model (USM) and View-based Access
Control (VACM) technologies, SNMPv3 enhances security. USM offers
authentication and privacy functions; while VACM controls users’ access to
specific MIBs.
System options
User can define a name, location, and contact person for the switch or
enable/disable the SNMP function in this page .Fill in the system options data,
and then click Apply to update the changes. Name/ Location/ Contact: when
the network management station connect the agent correctly the “name”,
“location” and “contact” will be displayed in the SNMP tool . This information is
the description of the SNMP agent. Of course, we can modify this information
on the network management station. SNMP Status: Enable/Disable SNMP
Function
Community strings
If network management station wants to connect the SNMP agent with SNMP
v1 or SNMP v2, the community string will be served as passwords to visit the
MIB-object Information and the privilege of this access will be set by selecting
“RO” and “RW”. RO meats you can only read the MIB; RW meats you can read
and set the MIB.