3Com 510, 520, 530 manual IP Addresses, Class C

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A-12 BRIDGING AND ROUTING

IP Addresses

TCP/IP Numbering and subnet masking IP numbers or addresses are normally made up of four fields (normally called bytes), with each byte having a whole number value of between 0 and 255, and the bytes separated by a full stop. For example:

123.123.123.123

An IP address is divided into two sections, one is the Network Address section and the other is the Host Address section. For example:

123.123.123.123

Network Host

The divider between the two sections is moveable according to what class of IP address it is. The class of address is defined by what the number is in the first address byte:

For a Class A IP address the number in the first byte will be in the range 00 to 126

For a Class B IP address the numbers in the first & second bytes will be in the range 128.001 to 191.254

For a Class C IP address the numbers in the first, second & third bytes will be in the range 192.000.001 to 223.255.254

For example:

Class A 1.123.123.123

Network Host

Class B 128.001.123.123

Network Host

Class C 192.123.123.123

Network Host

Using of any of the address classes in a private TCP/IP network is not a problem, providing that connections outside of that private network to external public or private TCP/IP networks are never needed. If a private IP addressing number scheme is established within a private corporate network, connections out of that network to external public or other private TCP/IP networks, can be achieved via a computer which has software which enables it to act as an IP gateway. These devices, if configured correctly, provide the IP numbering/address translation between the two networks.

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Contents Officeconnecttm Remote User Guide3Com Corporation 5400 Bayfront Plaza Santa Clara, California Important Safety Information Disconnect the power adapter before moving the unitWichtige Sicherheitshinweise WAN = Selv’INFORMATION DE Sécurité Importante Page Contents Dimensions B-4 Specifications B-1Management Connector Interface B-1 WAN Port Connecting Cable V.11/X.21Index Page About this Guide How to Use This GuideThis table shows where to find specific information IntroductionConventions Icon conventions that are used throughout this guide areText conventions used in this guide are Additional Safety Information Additional Safety InformationAbout this Guide OfficeConnect Remote Features Getting StartedGetting Started Easy to install, configure and support Benefits of IsdnPack Contents Checklist Pre-installation Requirements Registering Ownership Of Your OfficeConnect RemoteOfficeConnect Remote Front and Rear Panel Features Front PanelQuick flash Self test or software loading during power up Getting Started Rear Panel WAN OfficeConnect Remote 520 and 530 only Introduction Siting the OfficeConnect Remote InstallationUsing the Rubber Feet and Stacking Clips To prolong the operational life of your equipmentWall Mounting the OfficeConnect Remote Clipping Your Units TogetherConnecting the Power Adapter Connecting to Your 10BaseT LANConnecting to a Single Workstation To connect the OfficeConnect Remote to in-house LANConnecting to Your 10Base2 LAN Counter-clockwise to unlock it and remove itConnecting to Isdn Connecting to the WANConnecting to the Voice Port Connecting a Management Terminal Location of OfficeConnect Fax and Print ServersQuick Configuration Starting Quick ConfigurationAt the command prompt enter QC Main Menu ScreenAbout Quick Configuration Setting the Unit Name Connecting to a Novell IPX Network Complete the fields on this screen as followsPress CTRL+E to submit this information Connecting to an IP Host on the Same IP Network 12 Connecting To An IP Host On The Same NetworkConnecting to an IP Host on a Different IP Network 13 Connecting to an IP Host on a Different NetworkPress CTRL+E to submit this information Connecting to the Internet or a PPP Router 14 Connecting To The Internet Or PPP RouterGetting Started Password is case-sensitive Press CTRL+E to save this informationSetting Up a WAN Link Monitoring Isdn Line UsageSetting Up a WAN Link Examples of Typical Isdn Networking Applications Novell NetworkDisconnected. In this way Isdn calls are kept to a minimum Examples of Typical Isdn Networking ApplicationsIP Host on the Same IP Network 192.000.000.xxxIP Host on Another IP Network Internet or PPP Router 18 IP routed network19 PPP Connections to the Internet and Corporate Network Multiple Connections from a Single Site 20 Multiple Connections from a Single SiteTroubleshooting TroubleshootingSoftware Reference guide for more Bridging and Routing Bridging and Routing ConceptsGuidelines For Choosing Bridging or Routing How Bridges LearnBridging Between Remote Sites Bridging and Routing ConceptsBuilding a Larger Network Multiple Paths Between Bridged LANs Figure A-2 Multiple Remote BridgesNetwork Topology Broadcast StormsOptimum Use of Resource Routing IP and IPX Network Organization, Structure and Physical LayoutInternet Figure A-4 Open Systems Interconnection Network Layer Model IP Routing Bridging and Routing IPX Routing Routing IP and IPX A-11IP Addresses Class CSubnet Masking Mask, for exampleHerndon USA InterNIC, Network SolutionsHuntmar park Drive KruislaanNumbered and Unnumbered Links Bridging and Routing Specifications Technical InformationBridge Characteristics ApprovalsPerformance FCC Requirement Dimensions Interface Cable Characteristics WAN Port Connecting Cable V.11/X.21 SupportWAN Port Connecting Cable V.24/V.28 Support WAN Port Connecting Cable V.35/V.36 Support Manager Port Connecting Cable LAN Port Connecting Cable 10BaseT Modem CableOrdering Information 100BaseVG An Ieee standard for using the new Ieee GlossaryChapter C Glossary Page Chapter C Glossary Page Chapter C Glossary Page Topology The way that a network is physically laid out On-line Technical Services 3Com Bulletin Board ServiceTechnical Support Support from Your Network Supplier Support from 3ComWorld Wide Web Site Returning Products for Repair To obtain an RMA number, call or faxTechnical Support Index NumericsLAN Limited Warranty EMC Update OfficeConnect Remote