ZyXEL Communications P-660HN-T1H User Manual

 Chapter 16 Remote Management

P-660HN-T1H User’s Guide

An SNMP managed network consists of two main types of component: agents and 
a manager. 

An agent is a management software module that resides in a managed device (the 
ZyXEL Device). 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 
such as 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.

To change your ZyXEL Device’s SNMP settings, click Advanced > Remote MGMT 
> SNMP tab. The screen appears as shown.

Figure 92   Advanced > Remote MGMT > SNMP

The following table describes the labels in this screen.

Table 66   Advanced > Remote MGMT > SNMP

Server Port

The SNMP agent listens on port 161 by default. If you change the SNMP 
server port to a different number on the ZyXEL Device, for example 
8161, then you must notify people who need to access the ZyXEL Device 
SNMP agent to use the same port.

Server Access  Select the interface(s) through which a computer may access the ZyXEL 

Device using this service.

Secured Client 
IP Address

A secured client is a “trusted” computer that is allowed to access the 
SNMP agent on the ZyXEL Device.

Select All to allow any computer to access the SNMP agent.

Choose Selected to just allow the computer with the IP address that you 
specify to access the SNMP agent.