
User manual
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1. Set same user mane, the front settings of user name/password will be available.
2. User must remember user name and password after modified. If forget it, please use DIP switch to make default
factory. The default user name and password: admin.
6.8
Remote monitoring
6.8.1 SNMP management
1. Introduction of SNMP
SNMP (Simple Network Management Protocol) is an internet-standard protocol for managing
devices on IP networks. It is used mostly in network management systems to monitor network-attached
devices for conditions that warrant administrative attention.
2. Work Mechanism of SNMP
SNMP includes 2 parts: NMS and Agent:
NMS: Network Management Station. Software runs on the manager. The common management
platforms are "Quid View", "Sun Net Manager" and "IBM Net View". Agent is the software of the server
running in the network device.
NMS can send "Get Request", "Get Next Request" and "Set Request" message to Agent. After
Agent gets those messages, it will read or write according to the message type to create Response
message and send the Response message back to NMS. Agent will also send Trap message to NMS
when the device is abnormal.
3. SNMP Version
Currently SNMP Agent of the device supports SNMP V3 and it is also compatible with SNMP
V1and SNMP V2C. It is authenticated by user name and password in SNMP V3.
SNMP V1 and SNMP V2C adopt authentication of Community Name. The SNMP message of the
community name which is not authenticated will be discarded. SNMP community name defines the
relationship of SNMP NMS and SNMP Agent. User can choose the following one or more features
related to community name.
1. Defines MIB view of community name.
2. Setup visit privilege of MIB objective is Write or Read. Community name with Read privilege can
check the device information only. Community name with Write privilege can configure the device.
3. Setup appointed basic visit control list of the community name.
IES716-2GS series supports SNMP V1/V2c. Both SNMP V1 and V2c use public character strings
for match authentication.
SNMP usually uses UDP Port 161(SNMP) and 162 (SNMP-traps) based on TCP/IP protocol.
SNMP protocol agent is existed in network device. MIB (information specific to the device) is uses as
device connector. These network devices can be monitored or controlled through the agent. When trap
event happens, a message is transmitted by SNMP Trap, an available trap receiver can get this trap
information.
SNMP supports 3 kinds of basic operating in total:
Get:
Manager can use this to get some variable value of Agent.
Set:
Manager can use this to set up some variable value of Agent.
Trap:
Agent uses this to send an alarm to manager.