3Com 3CR856-95 manual Contents

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CONTENTS

Contents

3

 

 

 

 

 

About This Guide

7

 

 

 

Naming Convention

7

 

 

Conventions

7

 

 

 

 

Introducing the OfficeConnect Cable/DSL Secure Gateway 9

OfficeConnect Cable/DSL Secure Gateway

9

Cable/DSL Secure Gateway Advantages 10

 

Package Contents

11

 

 

Minimum System and Component Requirements 11

Front Panel

12

 

 

 

 

Rear Panel

13

 

 

 

 

Installing the Gateway

15

 

 

Introduction

15

 

 

 

 

Positioning the Gateway

15

 

Safety Information

15

 

Using the Rubber Feet

15

 

Before you Install your Gateway 15

 

PPPoE

16

 

 

 

 

PPTP

16

 

 

 

 

DHCP

16

 

 

 

 

Static

 

16

 

 

 

 

Powering Up the Gateway

17

 

Connecting the Cable/DSL Secure Gateway

17

Setting Up Your Computers 19

Obtaining an IP Address Automatically 19

Windows 2000, XP

19

Windows 95, 98, ME

20

Macintosh OS 8.5, 9.x

20

Disabling PPPoE and PPTP Client Software 20

Running the Setup Wizard

23

 

Accessing the Wizard

23

 

 

Setting the Password

24

 

Setting the Time Zone

25

 

Auto-Configuration Settings

26

Internet Settings

26

 

 

Choosing your LAN Settings

30

Activating DHCP

30

 

 

Viewing the Summary

31

 

Gateway Configuration 33

Navigating Through the Gateway Configuration Pages 33

Main Menu

33

Option Tabs

33

Welcome Screen

34

Viewing the Notice Board 34

Changing the Administration Password 34

Setup Wizard 35

3

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Contents Page United States Government Legend 3Com Corporation Bayfront Plaza Santa Clara, CaliforniaContents Troubleshooting Using DiscoveryIP Addressing Index Regulatory Notices Safety InformationEnd User Software Licence Agreement ISP InformationPage Icon Description About this GuideNaming Convention ConventionsRelated Documentation Feedback about this User GuideProduct Registration OfficeConnect Cable/DSL Secure Gateway Introducing the Officeconnect CABLE/DSL Secure GatewayCable/DSL Secure Gateway Advantages Example Network Using a Cable/DSL Secure GatewayMinimum System and Component Requirements Package ContentsFlashing slowly Two seconds on, two seconds off Power LED GreenFront Panel Alert LED OrangeEthernet Cable/DSL port Power Adapter socketRear Panel Cable/DSL Status LEDPage Positioning the Gateway Installing the GatewayBefore you Install your Gateway IntroductionStatic PPPoEConnecting the Cable/DSL Secure Gateway Powering Up the GatewayPage Setting UP Your Computers Obtaining an IP Address AutomaticallyWindows 2000, XP Disabling PPPoE and Pptp Client Software Windows 95, 98, MEMacintosh OS 8.5 Internet Properties Disabling Web ProxyPage Accessing the Wizard Running the Setup WizardWelcome Screen Setting the PasswordTo set the Gateway to World Time UTC Setting the Time ZoneInternet Settings Auto-Configuration SettingsDynamic IP Address Mode Static IP ModeConnection, use the following procedure PPPoE ModePptp Screen Pptp ModeActivating Dhcp Choosing your LAN SettingsViewing the Summary Dhcp Server Setup ScreenPage Option Tabs Gateway ConfigurationNavigating Through the Gateway Configuration Pages Main MenuWelcome Screen Password ScreenChanging the LAN Settings LAN SettingsSetup Wizard LAN IP SettingsChanging the Dhcp Server Settings Dhcp Clients Screen Dhcp Clients ListStatic IP Address DSL or Cable Internet SettingsConnection to ISP Screen Connection to ISPStatic Address Setup Screen Configuring a Static IP AddressDynamic Address Setup Screen Configuring a Dynamic IP AddressPPPoE Setup Screen Configuring a PPPoE connectionConfiguring a Pptp connection Setting up NATOne-to-Many and One-to-One NAT Setting up One-to-Many NATConfiguring the Firewall Setting up One-to-One NATVirtual Servers Menu Creating a Virtual DMZ Creating a Virtual ServerPC Privileges Virtual Servers Settings ScreenTo assign different access rights for different computers To use access control for all computersSpecial Applications Screen Special ApplicationsCreating Custom Special Applications Adding and Editing Special ApplicationsCustom Special Applications Setup Screen Advanced Advanced Settings ScreenConfiguring VPNs Setting the VPN ModeIPSec Configuration Address Pool for Pptp and L2TP clients field enter L2TP ConfigurationViewing VPN Connections Pptp ConfigurationAdding and Editing VPN Connections IPSec Connections using Gateway to Gateway IPSec Connections using Remote User AccessIPSec Connection Gateway to Gateway Connection Name field enter headsales L2TP over IPSec ConnectionsPptp Connections Editing IPSec RoutesRestart Accessing the System ToolsTime Zone Loading and Saving the Gateway ConfigurationUpgrading the Firmware of your Gateway Upgrade ScreenStatus Screen Viewing Status and LogsObtaining Support and Feedback for your Gateway Log Settings ScreenFeedback Screen Troubleshooting Browsing to the Gateway Configuration ScreensBasic Connection Checks Forgotten Password Connecting to the InternetHttp//192.168.1.1 Alert LEDDoes the Gateway support virtual private networks VPNs? Frequently Asked QuestionsUsing Discovery Windows Installation 95/98/2000/Me/NTRunning the Discovery Application Discovery Finish Screen Type One IP AddressingInternet Protocol Suite IP Addresses and Subnet MasksType Two How does a Device Obtain an IP Address and Subnet Mask?Dhcp Addressing Static AddressingAuto-IP Addressing Private IP AddressesPage Standards Technical SpecificationsOperating Systems Cable SpecificationsSystem Requirements Ethernet PerformanceSafety Information Important Safety InformationWichtige Sicherheitshinweise Consignes importantes de sécurité Page Page 3Com Corporation END User Software Licence AgreementPage Internet Characteristics Popular ISPs Connection Types ISP InformationInformation Regarding Popular ISPs Page Glossary Fast Ethernet DSL modemEthernet Ethernet AddressMAC Address IP AddressIPSec L2TP over IPSecProtocol SwitchNetwork Network Interface Card NICWizard TrafficPage Numbers IndexIeee Ietf NAT Ping VPN Page FCC Statement Regulatory Notices100 Page DUA08569-5AAA02 Published November
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Manual 2 pages 51.21 Kb

3CR856-95 specifications

The 3Com 3CR856-95 is a versatile networking device designed to meet the demands of small to medium-sized businesses. As a part of the 3Com OfficeConnect series, the 3CR856-95 combines switching, routing, and security features into a compact, integrated solution that enhances network performance and reliability.

One of the main features of the 3CR856-95 is its ability to support multiple network configurations. It operates as a router and switch simultaneously, offering six Ethernet ports for wired connections, while also integrating wireless capabilities. This allows businesses to connect various devices seamlessly, including computers, printers, and smartphones, providing flexibility and convenience in a modern office environment.

The device incorporates advanced technologies such as Quality of Service (QoS) which prioritizes network traffic to ensure that bandwidth-intensive applications like video conferencing and VoIP run smoothly. This feature is essential for maintaining productivity and communication efficiency in busy office settings. Additionally, the 3CR856-95 supports both IPv4 and IPv6 protocols, making it a future-proof solution as businesses transition to the newer Internet Protocol standard.

Security is a critical consideration for any networking equipment, and the 3CR856-95 addresses this with robust measures. It includes a built-in firewall that protects the network from external threats, along with support for Virtual Private Networks (VPN), allowing secure remote access for employees working from off-site locations. Furthermore, the device supports WPA2 encryption for wireless connections, safeguarding sensitive data transmitted over the network.

Another important characteristic of the 3CR856-95 is its user-friendly interface, which simplifies the setup and management of the network. The device features a web-based management console that allows network administrators to easily configure settings, monitor traffic, and troubleshoot issues from any internet-connected device. This accessibility saves time and reduces the complexity often associated with network management.

In summary, the 3Com 3CR856-95 is a robust and feature-rich networking solution tailored for small to medium-sized businesses. With its combination of switching, routing, and security features, it provides a reliable platform for facilitating seamless communication and connectivity. Its support for advanced technologies and user-friendly management interface makes it a smart choice for organizations looking to enhance their network infrastructure.