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Chapter 8 – SNMP Configuration
8.1 Enabling SNMP settings
RamSans support the Simple Network Management Protocol (SNMP),
which is the dominant network management protocol. The industry has
accepted this protocol due to its relative simplicity. The SNMP standards
provide a framework for the definition of management information along
with a protocol for the exchange of that information. The RamSan-3xx
Series is compatible with SNMP V2c.
The SNMP protocol requires a “manager,” which is network management
software that you supply, and an “agent,” which is the RamSan or other
SNMP compatible network device. Both the manager (via polling) and the
agent (via a trap) can initiate management information exchanges.
The RamSan allows the administrator to enable or disable the SNMP
functionality. For more information regarding these settings, see Section
4.1.5 - Enable/disable SNMP.
8.1.1 Setting SNMP community strings
The SNMP community string is like a user id or password that allows
access to the RamSan’s statistics. The RamSan sends the community
string along with all SNMP requests. If the community string is correct,
the device responds with the requested information. If the community
string is incorrect, the device simply discards the request and does not
respond.
There are two community strings for the RamSan:
• The SNMP Read-only community string enables a remote device to
retrieve "read-only" information from a device.
• The SNMP Read-Write community string allows a remote device to
read information from a device and to modify settings on that device.
RamSan does not use the read-write community string, since it never
attempts to modify any settings on its devices.
The RamSan ships from the factory with a read-only community string of
"read.” It is standard practice for network managers to change all the
community strings so that outsiders cannot see information about the
internal network.
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