About This Guide

This guide describes the features and advanced configuration of the OfficeConnectRemote 840 SDSL Router. The guide is intended for both first-time and experienced computer network users who are using the OfficeConnectRemote 840.

For information on the initial configuration of the unit, see the OfficeConnect Remote 840 SDSL Router Installation Guide (included in the box when your purchased your Router). That guide contains steps to get the user started accessing the Internet or telecommuting to a remote office.

This OfficeConnectRemote 840 SDSL Router User's Guide is intended to be used for advanced configuration, presenting more detailed information on the unit.

First-time users may want to read the tutorials in this Guide to help you learn more about the networking technologies used by the OfficeConnectRemote 840 SDSL Router.

The appendixes describe how to set up your router without using the Setup Wizard.

This table shows where to find specific information in this guide.

If you are looking for:	Turn to:
OfficeConnect Remote 840 Product Overview and Configuration	Chapters 1, 2
Configuration of your Router (Remote Sites, IP Routing, Bridging, NAT, DHCP, DNS, IPX Routing)	Chapter 3 - 9
Upgrading Software	Chapter 10
Monitoring Capabilities	Chapter 11
Configuring Filters	Chapter 12
Troubleshooting	Chapter 13
Information on the difference between Bridging and Routing	Appendix A
Information about IP Addressing	Appendix B
Information on Address Translation	Appendix C
Information on using the CLI Guide	Appendix D
Information on Configuration	Appendix E
Information on Technical Support	Appendix F

These and other user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site:

http://www.3com.com/ocr840

Table 1 and Table 2 list conventions that are used throughout this guide.

Table 1 Notice Icons

Icon	Notice Type	Description
	Information note	Information that describes important features or instructions
	Caution	Information that alerts you to potential loss of data or potential damage to an application, system, or device
	Warning	Information that alerts you to potential personal injury

Table 2 Text Convention

Convention	Description
Screen displays	This typeface represents information as it appears on the screen.
Syntax	The word "syntax" means that you must evaluate the syntax provided and then supply the appropriate values for the placeholders that appear in angle brackets. Example: To add a login user, use the following syntax: Add user <name> password <password> In this example, you must supply a user name for <name> and a password for <password>.
Commands	The word "command" means that you must enter the command exactly as shown and then press Return or Enter. Commands appear in bold. Example: To view the current login users, use the command: list users
The words "enter" and "type"	When you see the word "enter" in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says "type."
Keyboard key names	If you must press two or more keys simultaneously, the key names are linked with a plus sign (+). Example: Press Ctrl+Alt+Del
Words in italics	Italics are used to: Emphasize a point. Denote a new term at the place where it is defined in the text. Identify menu names, menu commands, and software button names. Examples: From the Help menu, select Contents. Click OK.

References to specific OfficeConnect Remote 840 Manager pages in this document will use a specific notation to describe the location of a page relative to the OfficeConnect Remote 840 Manager home page. The notation uses the' >' character to indicate that a sub-menu on a page must be accessed.

For example, to monitor the IP ARP Table you would (starting from the home page) access the Monitor menu. From the Monitor menu you would access the Networks sub-menu. From the Networks sub-menu you would access the IP sub-menu. Finally, from the IP sub-menu, you would access the ARP Table page. This is specified as Monitor > Networks > IP > ARP Table.

When accessing a page that requires data entry, press the Help icon displayed in the Main area to obtain information about the each data field on the page.

When using the unit, observe the following safety information:

• Retain this user guide for later use and pass it on to subsequent owners/managers of the unit.

• The power adapter supplied with the unit is fitted with a molded plug for connection to a standard electrical mains system supply socket. If this plug is not suitable for connection to your mains supply, contact your reseller for advice. Do not attempt to connect to the mains supply using an inappropriate mains adapter.

• Protect the unit from sudden, transient increases and decreases in electrical power by fitting an in-line surge suppressor or uninterruptible power supply.

• Products manufactured by 3Com are safe and without risk provided they are installed, used, and maintained in good working order and in accordance with their instructions and recommendations.

• Should any of the following conditions occur, isolate the electricity supply and refer to your 3Com reseller.

  • If the case or cover is not correctly fitted.

  • If the case is damaged.

  • If the unit begins to make an odd noise, smell or smoke.

  • If the unit shows signs of a distinct change in performance.

• Never install telephone wires during a thunder storm, or install telephone connection sockets in wet locations (unless the socket is specifically designed for wet locations).

• Do not touch uninstalled telephone wires or terminals unless the telephone line has been disconnected at the network interface. Always exercise caution when installing or modifying telephone lines.

• Do not use a telephone that is connected to the unit to report a gas leak in the vicinity of the leak.

• Do not use a telephone that is connected to the unit (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning.

• Do not spill food or liquids on the unit. If the unit gets wet, isolate the electrical supply and contact your 3Com reseller.

• Do not push any objects into the openings of the unit. Doing so can cause fire or electric shock by shorting out internal components.

• Ensure nothing rests on the unit's system cables and that the cables are not located where they can be stepped on and cause damage to the unit.

• Keep the unit away from radiators and heat sources. Allow 25mm (1 inch) around the unit or stack to provide adequate air circulation.

• Install the unit in a clean area that is free from dust or extreme temperatures.

• The unit has been designed to be a free standing unit. Do not place anything else on top of the unit's case.

• Allow a clearance gap of at least a 150 mm from the rear panel of the unit, to allow for cable access.

• This unit contains a lithium battery which is attached to a microchip on the printed circuit board. The defective battery must be disposed of safely in accordance with the manufacturers instructions.

  Cette unité contient une pile au lithium attachée à une puce sur la carte à circuit imprimé. Se débarrasser de la pile défectueuse en toute sécurité conformément aux instructions du fabricant.

See the printed installation guide for additional important safety information.

For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 web page:

http://www.3Com.com/products/yr2000.html