Snmp Settings - D-Link xStack DES-3800 Series User Manual

The sample below illustrates a successful creation of a new administrator-level account with the user
name "newmanager".
DES-3828:4#create account admin newmanager
Command: create account admin newmanager
Enter a case-sensitive new password:********
Enter the new password again for confirmation:********
Success.
DES-3828:4#

SNMP Settings

Simple Network Management Protocol (SNMP) is an OSI Layer 7 (Application Layer) designed
specifically for managing and monitoring network devices. SNMP enables network management
stations to read and modify the settings of gateways, routers, switches, and other network devices. Use
SNMP to configure system features for proper operation, monitor performance and detect potential
problems in the Switch, switch group or network.
Managed devices that support SNMP include software (referred to as an agent), which runs locally on
the device. A defined set of variables (managed objects) is maintained by the SNMP agent and used to
manage the device. These objects are defined in a Management Information Base (MIB), which
provides a standard presentation of the information controlled by the on-board SNMP agent. SNMP
defines both the format of the MIB specifications and the protocol used to access this information over
the network.
The DES-3800 Series supports SNMP versions 1, 2c, and 3. You can specify which version of SNMP
you want to use to monitor and control the Switch. The three versions of SNMP vary in the level of
security provided between the management station and the network device.
In SNMP v.1 and v.2, user authentication is accomplished using 'community strings', which function
like passwords. The remote user SNMP application and the Switch SNMP must use the same
community string. SNMP packets from any station that has not been authenticated are ignored
(dropped).
The default community strings for the Switch used for SNMP v.1 and v.2 management access are:
public - Allows authorized management stations to retrieve MIB objects.
•
private - Allows authorized management stations to retrieve and modify MIB objects.
•
SNMP v.3 uses a more sophisticated authentication process that is separated into two parts. The first
part is to maintain a list of users and their attributes that are allowed to act as SNMP managers. The
second part describes what each user on that list can do as an SNMP manager.
xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
NOTICE: CLI configuration commands only modify the running
configuration file and are not saved when the Switch is rebooted.
To save all your configuration changes in nonvolatile storage, you
must use the save command to copy the running configuration file
to the startup configuration.
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