ZyXEL Communications P-2302HW manual Option, Description, Service Provider, Host, User, Password

			Prestige 2302 Support Notes
Field Settings for DDNS:
Option	Description
Service Provider	Enter the DDNS server	in	this	field.	Currently	the Prestige	supports
	WWW.DYNDNS.ORG.
Host	Enter the hostname given	by	the	DDNS	service	provider. For	example,
	zyxel.com.tw.
User	Enter the user name that the DDNS service provider gives to your.
Password	Enter the password that the DDNS service provider gives to you.
	Enter the hostname for the wildcard function that the WWW.DYNDNS.ORG
Enable Wildcard	supports. Note that the Wildcard option is available from the
	WWW.DYNDNS.ORG DDNS service provider.

Network Management Using SNMP

1. SNMP Overview

Simple Network Management Protocol (SNMP) is an applications-layer protocol used to exchange management information between network devices (such as routers and switches). By using SNMP, network administrators can easily monitor network devices, detect and solve network problems. SNMP is a member of the TCP/IP protocol suite and it uses the UDP to exchange messages between a management Client and an Agent, residing in a network node.

There are two versions of SNMP: Version 1 and Version 2. ZyXEL supports SNMPv1. Most of the changes introduced in Version 2 enhance SNMP's security capabilities. SNMP encompasses three main areas:

1.A small set of management operations.

2.Definitions of management variables.

3.Data representation.

Operations allowed are: Get, GetNext, Set, and Trap. These functions operate based on variables stored on network nodes. Examples of variables include statistic counters and node port status. All SNMP management functions are carried out through these simple operations. No action operations are available, but these can be simulated by the setting the variable flags. For example, to reset a node, a counter variable called 'time to reset' can be set to a value which causes the node to reset after the time had elapsed.

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All contents copyright (c) 2005 ZyXEL Communications Corporation.