Small Office/ Home- Office Networking

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Slide 1: 

PowerPoint for Computer Service and Repair by JoAnne Keltner Goodheart-Willcox Publisher 18604 West Creek Drive Tinley Park, IL 60477 www.g-w.com Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational purposes only.

Chapter 19Small-Office/Home Office (SOHO) Networking : 

Chapter 19Small-Office/Home Office (SOHO) Networking

SOHO Networks : 

SOHO Networks A small-office/home-office (SOHO) network is a peer-to-peer network used to share resources and data in a home- or small-office environment.

Importance to the PC Technician : 

Importance to the PC Technician As a PC technician, you may be called on to design and configure a SOHO network. It is, therefore, important that you are familiar with the following: Media and devices typically used in SOHO networks. Various ways to connect networked PCs to the Internet. Administration and configuration of a SOHO network. Methods of securing a SOHO network.

Objectives : 

Objectives Determine the best media for use in a SOHO network based on cost and building structure. Determine an appropriate Internet access configuration based on the number of PCs and the type of network media used in a SOHO network. Design a SOHO network based on the media, the number of PCs, and the type of Internet access that will be used.

Objectives : 

Objectives Determine an appropriate level of administration for a SOHO network. Identify methods to secure a SOHO network. Use the Network Setup Wizard to set up Internet Connection Sharing (ICS) on a host PC. Use the Network Setup Wizard to allow a client access to the Internet through a host PC.

Objectives : 

Objectives Explain the networking features in Windows Vista. Explain how Network Discovery works in Windows Vista. Identify common problems that can occur in a new SOHO network installation.

Presentation Outline : 

Presentation Outline Designing the SOHO Network Troubleshooting the SOHO Network 1 2 3 4 Configuring the SOHO Network Securing the SOHO Network

Designing the SOHO Network : 

Designing the SOHO Network 1

SOHO Network Design Considerations : 

SOHO Network Design Considerations Type of media that will be used to connect the PCs together. Manner in which the networked PCs will access the Internet. Level of administration that will be used to secure resources and data. Method of security that will be used to protect the network from intruders.

SOHO Media : 

SOHO Media Copper cable. Existing home telephone lines. Existing home power lines. Wireless. Click each link for details.

HomePNA : 

HomePNA Home Phoneline Alliance (HomePNA) technology allows home telephone lines to be used as network media. Telephone jacks are used as connection points. HomePNA adapter allows telephone jack to be part of the network.

HomePNA Adapter : 

HomePNA Adapter

HomePNA Installation : 

HomePNA Installation

PLC : 

PLC Powerline communications (PLC) technology allows existing power lines to be used as network media. PLC adapter connects PC to 120-V ac outlet.

Mixed Network Environment : 

Mixed Network Environment Can mix different types of networks, such as cables and wireless. Bridge is used to connect dissimilar networks. A router that is used to bridge together dissimilar networks and to provide Internet access is called a gateway router.

Mixed Network Example : 

Mixed Network Example

Home Communications Cabinet : 

Home Communications Cabinet

Data Transfer Rate Comparison : 

Data Transfer Rate Comparison

Internet Access Configurations : 

Internet Access Configurations Modem: Two-PC network. Three-PC network. DSL: DSL modem and ICS host. DSL modem, router, and hub. DSL modem and router. Click each link for details.

Modem—Two PCs : 

Modem—Two PCs

Modem—Three PCs : 

Modem—Three PCs

DSL Modem Connections : 

DSL Modem Connections

DSL Modem and ICS Host : 

DSL Modem and ICS Host

DSL Modem, Router, and Hub : 

DSL Modem, Router, and Hub

DSL Modem and Router : 

DSL Modem and Router

Review : 

Review What is the name of the technology that allows home telephone lines to be used as network media? HomePNA

Review : 

Review What is the name of the technology that allows existing power lines to be used as network media? Powerline communications (PLC)

Review : 

Review A router that is used to bridge together dissimilar networks and to provide Internet access is called a(n) _____. gateway router

Review : 

Review Describe three different hardware configurations that will provide DSL Internet access to three PCs. (Name the equipment needed for each.) DSL modem, hub, and two NICs. DSL modem, router, and hub. DSL modem and router.

Securing the SOHO Network : 

Securing the SOHO Network 2

Home Network with No Security : 

Home Network with No Security

Home Network with Security : 

Home Network with Security

Firewall : 

Firewall Can be used to block specific ports or by filtering out IP addresses, packet contents, services, and protocols. Windows XP comes with a standard firewall called the Internet Connection Firewall (ICF).

Internet Connection Firewall (ICF) : 

Internet Connection Firewall (ICF) Can be configured to keep unauthorized users from accessing the network. ICF should only be installed on the host PC. Do not implement a firewall and a VPN at the same time.

Virtual Private Network (VPN) : 

Virtual Private Network (VPN) A virtual private network ensures data sent across the Internet is not intercepted, read, or modified. All contents of a packet (except destination address) are encrypted and are not viewable with a packet sniffer.

VPN Security Connection Protocols : 

VPN Security Connection Protocols Point-to-Point Tunneling Protocol (PPTP). Layer-Two-Tunneling Protocol (L2TP). PPTP or L2TP IP, IPX, AppleTalk, or such

Review : 

Review A(n) _____ can be used to block specific ports or by filtering out IP addresses, packet contents, services, and protocols. firewall

Review : 

Review ICF should only be installed on the _____ PC. host

Review : 

Review A(n) _____ ensures data sent across the Internet is not intercepted, read, or modified. virtual private network (VPN)

Review : 

Review You should not implement a firewall and a(n) _____ at the same time. virtual private network (VPN)

Configuring the SOHO Network : 

Configuring the SOHO Network 3

Windows XP Configuration Tasks : 

Windows XP Configuration Tasks Setting up networking with the Network Setup Wizard. Enabling and configuring the firewall. Sharing files and folders. Sharing a printer. Connecting to a networked printer. Click each link for details.

Network Setup Wizard : 

Network Setup Wizard The Network Setup Wizard includes a series of dialog boxes that ask for information about the network and makes setting up a SOHO network easy. Is available in Windows XP. Accessed through Start | Settings | Control Panel | Network Connections | Setup a home or small office network.

Network Setup Wizard—1 : 

Network Setup Wizard—1

Network Setup Wizard—2 : 

Network Setup Wizard—2

Network Setup Wizard—3 : 

Network Setup Wizard—3 Use this option to connect to a gateway or through an ICS host. Use this option to set up an ICS host.

Network Setup Wizard—4 : 

Network Setup Wizard—4

Network Setup Wizard—5 : 

Network Setup Wizard—5

Network Setup Wizard—6 : 

Network Setup Wizard—6

Network Setup Wizard—7 : 

Network Setup Wizard—7

Network Setup Wizard—8 : 

Network Setup Wizard—8

Network Setup Wizard—9 : 

Network Setup Wizard—9

Setting Up Internet Connection Firewall : 

Setting Up Internet Connection Firewall Enable ICF. Select services that users can access. If service is on another computer on the network, enter that computer’s name or IP address in the Service Settings dialog box. Click each link for details.

Setting Up ICF—Step 1 : 

Setting Up ICF—Step 1 Enable ICF

Setting Up ICF—Step 2 : 

Setting Up ICF—Step 2

Setting Up ICF—Step 3 : 

Setting Up ICF—Step 3

Sharing Files and Folders : 

Sharing Files and Folders Right-click the drive or folder to be shared. Select Sharing and Security from the shortcut menu.

Sharing Files and Folders (Cont.) : 

Sharing Files and Folders (Cont.) Select Share this folder on the network.

Sharing a Printer : 

Sharing a Printer Access the Printers and Faxes folder. Right-click the printer to be shared. Select Sharing from the shortcut menu.

Sharing a Printer (Cont.) : 

Sharing a Printer (Cont.) Select Share this printer. Change the share name to a more descriptive name.

Networked Printer Connection : 

Networked Printer Connection Access the Printers and Faxes folder. Click Add a printer.

Networked Printer Connection (Cont.) : 

Networked Printer Connection (Cont.) When the Welcome to the Add Printer Wizard screen appears, click Next.

Networked Printer Connection (Cont.) : 

Networked Printer Connection (Cont.) Select A network printer, or a printer attached to another computer.

Networked Printer Connection (Cont.) : 

Networked Printer Connection (Cont.) Specify the network printer using a Universal Naming Convention path or a URL path.

Networked Printer Connection (Cont.) : 

Networked Printer Connection (Cont.) Select whether you want to make it the default printer.

Networked Printer Connection (Cont.) : 

Networked Printer Connection (Cont.) Review the configuration summary, and then click Finish to complete the network printer connection.

Windows Vista Network Features : 

Windows Vista Network Features Network Discovery. Network and Sharing Center. Networking Wizards. People Near Me.

Network Discovery : 

Network Discovery Based on the Link-Layer Topology Discovery (LLTD) protocol. Allows Network Explorer to display devices, even if they do not have an IP address assigned. Enabled and disabled through the Network and Sharing Center. Disabled by default when the computer is part of a public network or has joined a domain.

LTTD Protocols : 

LTTD Protocols Receives broadcast information from other network devices Broadcasts information to other network devices

Network and Sharing Center : 

Network and Sharing Center Displays in one centralized location all aspects concerning the LAN. Located at Start | Control Panel | Network and Internet | Network and Sharing Center. Can also right-click Network and select Properties from the shortcut menu.

Network and Sharing Center : 

Network and Sharing Center

Viewing a Full Network Map : 

Viewing a Full Network Map

Windows Vista Network Locations : 

Windows Vista Network Locations

Setting the Network Location : 

Setting the Network Location

Network and Sharing Center— Sharing Options : 

Network and Sharing Center— Sharing Options

Networking Wizards : 

Networking Wizards Available from Network and Sharing Center | Setup a connection or network. Allow you to do the following: Connect to the Internet. Set up a wireless router or access point. Set up a dial-up connection. Connect to a workplace.

Networking Wizards : 

Networking Wizards

People Near Me : 

People Near Me Dynamically discovers when other users are on the network. You can send an invitation to join a user in windows Meeting Space.

People Near Me Settings Tab : 

People Near Me Settings Tab

People Near Me Sign In Tab : 

People Near Me Sign In Tab

Windows Meeting Space : 

Windows Meeting Space

Review : 

Review The _____ includes a series of dialog boxes that ask for information about the network and makes setting up a SOHO network easy. Network Setup Wizard

Review : 

Review Which tab would you select to gain access to a list of services that can be filtered? Advanced

Review : 

Review When connecting to a networked printer, what two types of path names can be used to specify the network printer? UNC and URL

Review : 

Review Which option must be selected to share the selected folder on the network? Share this folder on the network

Review : 

Review Network Discovery is (enabled, disabled) by default on a computer that is configured for the Public location. disabled

Review : 

Review Windows Firewall is (enabled, disabled) by default on a computer that is configured for the Public location. enabled

Review : 

Review Which of the following networking wizards would you select to set up a VPN connection? Connect to the Internet Set up a wireless router or access point Set up a dial-up connection Connect to a workplace 

Troubleshooting the SOHO Network : 

Troubleshooting the SOHO Network 4

Common SOHO Network Problems : 

Common SOHO Network Problems Cannot access resources on the network. Cannot access the Internet through the ICS host. Internet access is sluggish. Incompatible hardware or software. Click each link for details.

Cannot Access Resources : 

Cannot Access Resources A firewall may be configured on a computer that is not the host. A firewall and a VPN are installed on the same computer. Computer is using a network protocol different than the one used by the other computers.

Cannot Access Internet Through Host : 

Cannot Access Internet Through Host Computer may be configured as a DHCP server. Computer may be configured as a DNS server.

Internet Access Is Sluggish : 

Internet Access Is Sluggish Someone on the network may be downloading extensively large files. To prevent download of extensively large files such as music files, the port associated with the download can be blocked.

Incompatible Hardware or Software : 

Incompatible Hardware or Software Always check the hardware compatibility list before setting up a SOHO network. An incompatible device may constantly broadcast or communicate in only one direction.

Review : 

Review What are some possible causes of a computer not being able to access resources on the network? A firewall is configured on a computer that is not the host. A firewall and a VPN are installed on the same computer. The computer is using a network protocol different than the one used by the other computers.

Review : 

Review What are some possible causes of a computer not being able to access the Internet through the ICS host? The computer may be configured as a DHCP or DNS server.

Review : 

Review What may be a cause of Internet access being extremely sluggish? Someone on the local network may be downloading extensively large files.

Review : 

Review Name two problems that may occur if a network device is incompatible. An incompatible device may constantly broadcast or communicate in only one direction.

Glossary : 

Glossary

Gateway Router : 

Gateway Router A router that combines different media and provides an Internet connection.

HomePNA Adapter : 

HomePNA Adapter A networking device that allows every telephone jack that is connected together physically in a building to be part of the network.

Home Phoneline Networking Alliance (HomePNA) Technology : 

Home Phoneline Networking Alliance (HomePNA) Technology A technology that allows exiting home telephone lines to be used for the network media.

Internet Connection Firewall (ICF) : 

Internet Connection Firewall (ICF) Software included in Windows XP that can be configured to keep unauthorized users from accessing the network.

Network Setup Wizard : 

Network Setup Wizard A Windows XP wizard that makes setting up a network easy by including a series of dialog boxes that ask for information about the network.

Packet Sniffer : 

Packet Sniffer A utility that captures packets on a network and displays their entire contents.

Powerline Communications (PLC) : 

Powerline Communications (PLC) A technology that allows existing power lines to be used as network media.

Small-Office/Home-Office (SOHO) Network : 

Small-Office/Home-Office (SOHO) Network A simple peer-to-peer LAN that is used to share resources and data in a home- or small-office environment.

Universal Naming Convention (UNC) : 

Universal Naming Convention (UNC) A path format that identifies a server and its share and uses backslashes to separate the server name from the share name.

Virtual Private Network (VPN) : 

Virtual Private Network (VPN) A security configuration that ensures data sent across the Internet is not read or modified. It does this by creating a private tunnel between the destination and source PC and encrypting packet contents.

Discussion Questions : 

Discussion Questions A client wants to network her home PCs. One PC will be located in the home office and the other two will be in each of her kid’s bedrooms. The laptop computer will be used in multiple rooms. What questions might you ask your client before making recommendations? What recommendation would you make based on the answers to your questions?

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