Snmp Community Strings - D-Link DXS-3250 Web/Installation Manual

D-Link DXS-3250/DXS-3227P/DXS-3227 User Guide

SNMP Community Strings

Simple Network Management Protocol (SNMP) provides a method for managing network devices. Devices sup-
porting SNMP run a local software (agent). The SNMP agents maintain a list of variables, used to manage the
device. The variables are defined in the Management Information Base (MIB). The MIB presents the variables
controlled by the agent. The SNMP agent defines the MIB specification format, as well as the format used to
access the information over the network.
Access rights to the SNMP agents are controlled by access strings and SNMP community strings.
The device is SNMP-compliant and contains an SNMP agent that supports a set of standard and private MIB vari-
ables. Developers of management stations require the exact structure of the MIB tree and receive the complete
private MIBs information before being able to manage the MIBs.
All parameters are manageable from any SNMP management platform, except the SNMP management station IP
address and community (community name and access rights). The SNMP management access to the switch is
disabled if no community strings exist.
Note
The device switch is delivered with no community strings configured.
The following screen displays the default device configuration:
show snmp
Console(config)#
Community-String Community-Access
---------------- ----------------
System Contact:
System Location:
The community-string, community-access, and IP address can be configured through the local terminal during the
initial configuration procedure.
The SNMP configuration options for the Community String are as follows:
•
Access rights options: ro (read only), rw (read-and-write) or su (super).
•
An option to configure IP address or not: If an IP address is not configured, it means that all community mem-
bers having the same community name are granted the same access rights.
Common practice is to use two community strings for the switch one (public community) with read-only access
and the other (private community) with read-write access. The public string allows authorized management sta-
tions to retrieve MIB objects, while the private string allows authorized management stations to retrieve and mod-
ify MIB objects.
During initial configuration, it is recommended to configure the device according to the network administrator
requirements, in accordance with using an SNMP-based management station.
To configure SNMP station IP address and community string(s) perform the following:
1. At the console prompt, enter the command
2. Enter the command
3. In the configuration mode, enter the SNMP configuration command with the parameters including community
name (private), community access right (read and write) and IP address, as shown in the following example:
IP address
----------
Enable
and press
configure <Enter>
. The prompt is displayed as #.
.
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