Linksys DSHSNMP User Manual

Instant EtherFast® Series

Simple Network

Management Protocol

(SNMP) Module

For Use With:

StackPro II 10/100 16-Port Dual-Speed Hub (DSHUB16) StackPro II 10/100 24-Port Dual-Speed Hub (DSHUB24)

Use this guide to install this

Linksys product:

Simple Network Management Protocol

Module (DSHSNMP)

User Guide

Copyright © 1999 Linksys, All Rights Reserved. Instant EtherFast is a registered trademark of Linksys. Microsoft, Windows, and the Windows logo are registered trademarks of Microsoft Corporation. All other trademarks and brand names are the property of their respective proprietors.

LIMITED WARRANTY

Linksys guarantees that every SNMP Module is free from physical defects in material and workmanship under normal use for one (1) year from the date of purchase.If the product proves defective during this warranty period, call Linksys Customer Support in order to obtain a Return Authorization number. Warranty is for repair or replacement only. Linksys does not issue any refunds. BE SURE TO HAVE YOUR PROOF OF PURCHASE AND BAR CODE AND MODEL NUMBER ON HAND WHEN CALLING. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE AND BAR CODE FROM THE BOX. When returning a product, mark the Return Authorization number clearly on the outside of the package and include your original proof of purchase and bar code.

IN NO EVENT SHALL LINKSYS’ LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITS DOCUMENTATION. Linksys makes no warranty or representation, expressed, implied, or statutory, with respect to its products or the contents or use of this documentation and all accompanying software, and specifically disclaims its quality, performance, merchantability, or fitness for any particular purpose. Linksys reserves the right to revise or update its products, software, or documentation without obligation to notify any individual or entity. Please direct all inquiries to:

Linksys P.O. Box 18558, Irvine, CA 92623.

FCC STATEMENT

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which is found by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

•Reorient or relocate the receiving antenna

•Increase the separation between the equipment or device

•Connect the equipment to an outlet other than the receiver’s

•Consult a dealer or an experienced radio/TV technician for assistance

903

Notice:

This is the first FINAL version of the SNMP user guide for 10 March 1999. It was posted at 5:00PM PST.

Please report any errors via email: support@linksys.com

Introduction	2
About This Guide	3
Managing the Hub	5
Installing The Hardware	6
Using a Telnet Connection	9
The Command Line Interface	10
The Web-Based Interface	23

Introduction

Congratulations on your purchase of a Simple Network Management Protocol (SNMP) Module for the StackPro II 10/100 Dual-Speed Hub. The module will allow you to control your hub's activity through advanced SNMP and Remote Monitoring (RMON) features, as well as adding network security and increased data negotiation capabilities.

Since the StackPro II hubs can stack up to six high, you can manage your entire stack with only one SNMP module. You can configure protocols, partition ports on any hub in the stack, set port speeds, manage 100BaseFX fiber optic distance extender modules, monitor traffic, and perform a host of other duties to make your network more secure, and to allow your data to travel as smoothly and error-free as possible. The module provides you with the choice of using a command console interface or a web-based interface to configure your network's management settings.

As your network needs grow, your StackPro II 10/100 DualSpeed Hub Management Module can be updated - just log on to the Linksys web site, at http://www.linksys.com, and download the latest free firmware upgrade.

About this Guide

This user guide outlines the features, installation, and firmware upgrade procedures for the StackPro II Management Module. This printed version of the user guide does not offer full support for the configuration and use of the StackPro II Management Module beyond the navigation and use of features in the command line interface and the web-based interface.

The module's firmware, along with both the web interface and the command console interface, will be updated regularly to provide you with the most reliable and current network management utilities. For this reason, Linksys has made the SNMP module's full and complete user guide available in PDF format on the Linksys web site. Whenever you perform a firmware upgrade, please download or print out the latest versions of the full user guide and release notes that correspond to the latest firmware update.

This user guide is intended for system administrators who have network management experience. If you have never used an SNMP module or other network management device, it is recommended that you read the entire user guide, including the full version available in PDF format on the Linksys web site before installing and configuring the module. Additional research may be needed to obtain a full working knowledge of some of the concepts and terms discussed in this guide.

Getting to Know the Hardware

The SNMP Management Module (DSHSNMP) provides extensive management support for the following Linksys products:

•StackPro II 10/100 Dual-Speed 16-Port Hub (DSHUB16)

•StackPro II 10/100 Dual-Speed 24-Port Hub (DSHUB24)

The StackPro II hubs also feature additional expansion options for fiber optic networking:

•100BaseFX Fiber Optic Distance Extender Module SC-Type (DSHFXSC)

•100BaseFX Fiber Optic Distance Extender Module ST-Type (DSHFXST)

The StackPro II Management Module provides management options for the Fiber Optic modules as well as the regular RJ45 ports for all hubs in the same collision domain. For example, when you install an SNMP module in a StackPro II Hub, you are immediately able to control all of the ports in the stack.

When used in conjunction with the web interface or the command console interface, you can use the StackPro II Management Module to do the following:

•Display a picture of the StackPro II 10/100 hub and monitor port activity using the web interface

•Generate graphs that show hub or port activity over a selected time period

•Configure each port's security settings

•View hub statistics with RMON on levels 1,2,3 and 9

•Manually control the speed settings (10Mbps, 100Mbps, or 10/100 auto-sensing) for each port on the hub or in the stack.

•Configure hub IP addresses, network protocols, and system ID settings

•Enable or disable of any port on the hub or in the stack

•Enable, disable, and monitor fiber optic distance extender modules

•Partition ports

•Generate traps

•Access three security levels of user control

•Configure the console port for use with a modem

•Download free firmware and software upgrades

Managing Your Hub

Getting Started

There are two ways in which you can manage your StackPro II 10/100 Dual-Speed Hub with the SNMP Module - through a command console interface and a Web-based interface.

The command console interface is the first one that you will use when you first install the module and power on your hub. The command console interface looks just like a basic textbased command-line terminal. You can change settings, save firmware upgrades, manage your ports, and perform other basic functions. However, the command console interface is meant to be used primarily as a way to set up your StackPro Hub's SNMP module for use with the more powerful Webbased interface.

The Web-based interface allows you to access your management module over a network of any kind using a Web browser or network management application. With a Web browser such as Microsoft Internet Explorer or Netscape Navigator, (any browser that supports Java, frames, and HTML 3.2 or higher will do the trick), you can access the managed hub simply by entering the IP address of the hub in the browser's address box.

A network management application, such as Hewlett Packard OpenView, allows greater control and more features than a Web browser. The RMON feature of your management module can only be utilized by a compatible network management application.

Installing the Hardware

In order to manage a single hub or stack of StackPro II DualSpeed hubs, you should insert one SNMP module into one of the hubs in the stack. Only one SNMP module is needed to manage each stack of up to 6 hubs.

Follow these instructions to install the SNMP module in a StackPro II 10/100 hub or a stack of StackPro II 10/100 hubs. Please read through all of the provided instructions before continuing with the installation:

1.Turn off the StackPro II hub. If your hub is connected to a rack, remove it from the rack. Remove the panel on the back of the unit marked SNMP. For your safety, it is important to do this in a safe working environment free of excessive clutter, electromagnetic interference, and dormant static electricity.

2.Carefully insert the SNMP module (with the circuits and chips facing up). Gently but firmly slide the module into the slot and push on it until you feel that the module is securely connected to the slots inside of the hub. The module should be firmly set - if you can move it by wiggling it, then it is not properly connected.

3.Find a PC with a free serial port to use as a "terminal". You will use this computer to configure your SNMP module. Bring the computer close to the hub and boot it up.

Run a terminal program on your PC - for example, run the HyperTerm program under Windows 95/98 - and set the following parameters

Baud Rate: 38400

Data Bits: 8

Parity: None

Stop Bits: 1

Flow Control: No

4.Connect your PC to the SNMP module using one of the PC's active serial ports. Directly connect them using a DB-9 male to DB-9 male serial cable. Do not use a null modem cable.

5.Turn on the hub.

6.You will see diagnostic messages in the terminal window. The hub is running a self-test. Please wait for it to finish, and watch to make sure that the hub passes all of the tests.

7.After the hub finishes its self-test, you will notice that the LEDs on the hub(s) are displaying management information. On the hub that is managed, the MNGMNT light will be on.

You will be prompted to enter a password. There are three access levels. Your access to the hub's management capabilities will be determined by the password that you give.

MANAGER

The manager has access to all functions on the hub and can configure any of the hub's settings. The default password for this level is "manager"

OPERATOR

The operator can set only the variables under the portconfiguration menu. All other variables are only read-only. The default password for this level is "operator"

USER

The user level offers read-only access to the hub's settings. The default password for the user level is "user"

You should change all three of the SNMP module's passwords under the "Change Password" sub-menu later.

8.Enter the manager password. You will see a command menu.

9.The first thing you should do is change the hub unit's IP address. The default address for the hub is 192.168.0.1.

Press 2 to get to the "Protocol Configuration" menu. Give the hub a unique IP address in this format: nnn.nnn.nnn.nnn

The values for each variable in the address should fall between 0 and 255. Be sure that the IP address fits into the Subnet addressing scheme of your network. You can also set the Subnet Mask and the Routing Address from the "System Setting" menu.

10. After the IP address has been set, you can manage your hub by using a Network Management application (such as HP OpenView) or a web browser from anywhere on the network. Any browser you use must support frames, Java, and HTML 3.2 or higher.

Locating Hubs in the Stack

The find a hub's unit number, start with Unit 1 at the top of the stack and count downwards. In a stack of 6 StackPro II hubs, Unit 1 is on the top and Unit 6 is on the bottom.

Using the Command Line

Interface

The command line interface can be accessed through the terminal port on the back of the SNMP module or through a telnet connection from any computer on the network.

You must configure at least the IP address of the unit using the command line interface before accessing it through the web interface.

Before entering the command line interface, the hub will run several diagnostic tests and it will prompt you to enter a password. Enter the manager's password. The default password for the manager access level is "manager". It will remain "manager" until you change it.

The main menu for the command line interface looks like this

Network Management Module Setup Main Menu

--------------------------------------------

[1]System Settings

[2]Protocol Configuration

[4]Restart Management Kit

[5]SNMP Configuration

[7]Port Management

[8]Firmware Update

[9]Modify Password

[S] Save Current Settings

[R]Restore Default Values

[S]Save Current Settings