ZyXEL Communications NWA-1100 User Manual

Chapter 11 Remote Management

ZyXEL NWA-1100 User’s Guide

This section provides some technical background information about the topics covered in this 
chapter. 

Managed devices in an SMNP managed network contain object variables or managed objects 
that define each piece of information to be collected about a device. Examples of variables 
include such as number of packets received, node port status etc. A Management Information 
Base (MIB) is a collection of managed 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. 
• GetNext - Allows the manager to retrieve the next object variable from a table or list 

within an agent. In SNMPv1, when a manager wants to retrieve all elements of a table 
from an agent, it initiates a Get operation, followed by a series of GetNext operations. 

• Set - Allows the manager to set values for object variables within an agent. 
• Trap - Used by the agent to inform the manager of some events.

The ZyXEL Device supports MIB II that is defined in RFC-1213 and RFC-1215 as well as the 
proprietary ZyXEL private MIB. The purpose of the MIBs is to let administrators collect 
statistical data and monitor status and performance.

SNMP traps are messages sent by the agents of each managed device to the SNMP manager. 
These messages inform the administrator of events in data networks handled by the device.  
The ZyXEL Device can send the following traps to the SNMP manager. 

Secured Client MAC 

Address

Select All to allow any computer to access the ZyXEL Device using this service.
Choose Selected to just allow the computer with the MAC address that you 

specify to access the ZyXEL Device using this service.

Apply

Click Apply to save your customized settings and exit this screen. 

Reset

Click Reset to begin configuring this screen afresh.

Table 32   Remote Management: SNMP

Table 33   SNMP Traps

Generic Traps

coldStart 

1.3.6.1.6.3.1.1.5.1

This trap is sent after booting (power on). This 

trap is defined in RFC-1215.