Snmp Settings - D-Link Xstack DES-3528 Series Hardware Installation Manual

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xStack DES-3528/DES-3552 Series Layer 2 Managed Stackable Fast Ethernet Switch Hardware Installation Guide
The sample belo w illu strates a successful creati on of a
"newmanager".
DES-3528:admin# create account admin newmanager
Command: create account admin newmanager
Enter a case-sensitive new password: ********
Enter the new password again for confirmation: ********
Success.
DES-3528:admin#

SNMP Settings

Simple Net work Management Proto col (SNMP ) is an OS I La yer 7 (Appli cation Laye r) designed sp ecifically for
managing an d monitorin g network dev ices. SNMP enabl es net work ma nagement station s to read and modify th e
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 sup port SNMP i nclude software (referred to as a n 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
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 Switch supports SNMP versions 1, 2c, and 3. You can specify which version of SNMP you want to use to monitor
and control the Switch. T he three versions of SNMP vary in the level of se curity provided between the management
station and the network device.
In SNMP v.1 and v.2, use r authentication is accomp lished 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 u ses a more sop histicated authenticati on pro cess that is sepa rated into two parts. The first part is to
maintain a list of users an d their attribu tes that are a llowed to act as SNMP managers. The se cond part descri bes
what each user on that list can do as an SNMP manager.
The Switch allows groups of users to be listed and configured with a shared set of privileges. The SNMP version may
also be set for a liste d group of SNMP managers. Thus, you may create a group of SNMP managers that are allowed
to view rea d-only informati on or receive traps u sing SNMP v.1 while assig ning a highe r le vel of secu rity to another
group, granting read/write privileges using SNMP v.3.
NOTE: Passwords are ca se sensitive. User names and passwo rds can be
up to 15 characters in length.
Figure 4- 3. New administrator level account
NOTICE: CLI configuration commands only modify the running configuration file
and are not saved when t he Switch is rebooted. To save all your configuration
changes in n onvolatile sto rage, you m ust use th e sa ve comma nd to copy the
running configuration file to the startup configuration.
Manage ment Informatio n Base (M IB), which pro vides a sta ndard p resentation of the
new admi nistrator-level account with th e user n ame
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