3Com 3CR856-95 System Requirements, Ethernet Performance, Cable Specifications, Operating Systems

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System Requirements

Operating Systems

The Cable/DSL Secure Gateway will support the following Operating Systems:

Windows 95, 98, Me

Windows NT 4.0

Windows 2000

Windows XP

Mac OS 8.5 or higher

Unix

Ethernet Performance

The Cable/DSL Secure Gateway complies to the IEEE 802.3i, u and x specifications.

Cable Specifications

The Cable/DSL Secure Gateway supports the following cable types and maximum lengths:

Category 3 (Ethernet) or Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair — shielded and unshielded cable types.

Maximum cable length of 100m (327.86 ft).

Category 5 cables are required for a 100BASE-TX connection.

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Contents Page 3Com Corporation Bayfront Plaza Santa Clara, California United States Government LegendContents Troubleshooting Using DiscoveryIP Addressing ISP Information Safety InformationEnd User Software Licence Agreement Index Regulatory NoticesPage Conventions About this GuideNaming Convention Icon DescriptionRelated Documentation Feedback about this User GuideProduct Registration Introducing the Officeconnect CABLE/DSL Secure Gateway OfficeConnect Cable/DSL Secure GatewayExample Network Using a Cable/DSL Secure Gateway Cable/DSL Secure Gateway AdvantagesPackage Contents Minimum System and Component RequirementsAlert LED Orange Power LED GreenFront Panel Flashing slowly Two seconds on, two seconds offCable/DSL Status LED Power Adapter socketRear Panel Ethernet Cable/DSL portPage Introduction Installing the GatewayBefore you Install your Gateway Positioning the GatewayPPPoE StaticPowering Up the Gateway Connecting the Cable/DSL Secure 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 Disabling Web Proxy Internet PropertiesPage Running the Setup Wizard Accessing the WizardSetting the Password Welcome ScreenSetting the Time Zone To set the Gateway to World Time UTCAuto-Configuration Settings Internet SettingsStatic IP Mode Dynamic IP Address ModePPPoE Mode Connection, use the following procedurePptp Mode Pptp ScreenChoosing your LAN Settings Activating DhcpDhcp Server Setup Screen Viewing the SummaryPage Main Menu Gateway ConfigurationNavigating Through the Gateway Configuration Pages Option TabsPassword Screen Welcome ScreenLAN IP Settings LAN SettingsSetup Wizard Changing the LAN SettingsChanging the Dhcp Server Settings Dhcp Clients List Dhcp Clients ScreenInternet Settings Static IP Address DSL or CableConnection to ISP Connection to ISP ScreenConfiguring a Static IP Address Static Address Setup ScreenConfiguring a Dynamic IP Address Dynamic Address Setup ScreenConfiguring a PPPoE connection PPPoE Setup ScreenSetting up NAT Configuring a Pptp connectionSetting up One-to-Many NAT One-to-Many and One-to-One NATConfiguring the Firewall Setting up One-to-One NATVirtual Servers Menu Creating a Virtual Server Creating a Virtual DMZVirtual Servers Settings Screen PC PrivilegesTo use access control for all computers To assign different access rights for different computersSpecial Applications Special Applications ScreenAdding and Editing Special Applications Creating Custom Special ApplicationsCustom Special Applications Setup Screen Advanced Settings Screen AdvancedConfiguring VPNs Setting the VPN ModeIPSec Configuration L2TP Configuration Address Pool for Pptp and L2TP clients field enterPptp Configuration Viewing VPN ConnectionsAdding and Editing VPN Connections IPSec Connections using Remote User Access IPSec Connections using Gateway to GatewayIPSec Connection Gateway to Gateway L2TP over IPSec Connections Connection Name field enter headsalesEditing IPSec Routes Pptp ConnectionsAccessing the System Tools RestartLoading and Saving the Gateway Configuration Time ZoneUpgrade Screen Upgrading the Firmware of your GatewayViewing Status and Logs Status ScreenLog Settings Screen Obtaining Support and Feedback for your GatewayFeedback Screen Troubleshooting Browsing to the Gateway Configuration ScreensBasic Connection Checks Connecting to the Internet Forgotten PasswordAlert LED Http//192.168.1.1Frequently Asked Questions Does the Gateway support virtual private networks VPNs?Using Discovery Windows Installation 95/98/2000/Me/NTRunning the Discovery Application Discovery Finish Screen IP Addresses and Subnet Masks IP AddressingInternet Protocol Suite Type OneStatic Addressing How does a Device Obtain an IP Address and Subnet Mask?Dhcp Addressing Type TwoPrivate IP Addresses Auto-IP AddressingPage Technical Specifications StandardsEthernet Performance Cable SpecificationsSystem Requirements Operating SystemsSafety Information Important Safety InformationWichtige Sicherheitshinweise Consignes importantes de sécurité Page Page END User Software Licence Agreement 3Com CorporationPage Internet Characteristics Popular ISPs Connection Types ISP InformationInformation Regarding Popular ISPs Page Glossary Ethernet Address DSL modemEthernet Fast EthernetL2TP over IPSec IP AddressIPSec MAC AddressNetwork Interface Card NIC SwitchNetwork ProtocolTraffic WizardPage Index NumbersIeee Ietf NAT Ping VPN Page Regulatory Notices FCC Statement100 Page DUA08569-5AAA02 Published November
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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.