ZyXEL Communications Parental Control Gateway HS100/HS100W - Manual (Page 278)

HomeSafe User’s Guide
SNMP Configuration 28-1
Chapter 28
SNMP Configuration
This chapter explains SNMP Configuration menu 22.
28.1 About SNMP
Simple Network Management Protocol is a protocol used for exchanging management
information between network devices. SNMP is a member of the TCP/IP protocol suite. Your
HomeSafe supports SNMP agent functionality, which allows a manager station to manage and
monitor the HomeSafe through the network. The HomeSafe supports SNMP version one
(SNMPv1) and version two c (SNMPv2c). The next figure illustrates an SNMP management
operation. SNMP is only available if TCP/IP is configured.
Figure 28-1 SNMP Management Model
An SNMP managed network consists of two main components: agents and a manager.
An agent is a management software module that resides in a managed device (the HomeSafe). An
agent translates the local management information from the managed device into a form
compatible with SNMP. The manager is the console through which network administrators
perform network management functions. It executes applications that control and monitor
managed devices.
The managed devices contain object variables/managed objects that define each piece of
information to be collected about a device. Examples of variables include the number of packets
received, node port status etc. A Management Information Base (MIB) is a collection of managed
objects. SNMP allows a manager and agents to communicate for the purpose of accessing these
objects.
SNMP itself is a simple request/response protocol based on the manager/agent model. The
manager issues a request and the agent returns responses using the following protocol operations:
• Get - Allows the manager to retrieve an object variable from the agent.