Lan/Wan Devices..

LAN/WAN Network Devices

Computer network consist of different devices such as router, hub, switch, gateway and others. Without these network devices data cannot be transmitted from one computer to another in a LAN or WAN network. These devices link up all the local and remote network segments with each other to make data communication from one segment to another. The two important devices of a big network are routers and switches. A computer network with good infrastructure with properly placed and configured network devices such as routers, switches etc. are helpful in reducing the overall operational cost, improve the performance, manageability and reliability.

LAN Devices

Hub

A hub is a networking device, which is used to connect the two segments of a wired network. In star topology, every computer is directly connected with the hub. In case of any fault in the hub, the data communication in the network computers stops. In an Ethernet-based network a hub is a central device that is used to connect all the computers with each other.A hub has multiple ports such as 6, 8, 16 and 24 etc. When data packets are reached at hub, they are broadcasted to all the computers unlike a switch and only the destined computer receives the data. When you want to connect more than computers with each other a hub or switch is required in a local area network. There are two types of a hub passive hub and active hub.

LAN Card

LAN card, network interface card or NIC is used to join the computers in a network. A NIC card is installed in any available PCI port inside the computer. A unique MAC (Media Control Access) address is assigned to LAN card. A MAC address is consists of two portions manufacture’s id and the card id (PROM on the network interface card holds the addresses). LAN card operates on the physical and data link layer of the OSI model. A LAN card usually has twisted pair, BNC and AUI sockets where the Ethernet cables are connected.

Switch

A network switch performs the same functionality in a network as a hub except a different that switch does not broadcast the data packets to all the computers in a network like a hub. A network switch has multiple ports like 4, 8, 16 and 24 etc. All the computers in a wired network are directly connected with the switch through Ethernet cable. Switches limit the traffic to and from each port and all the devices connected to the switch has maximum available bandwidth. Switch doesn’t provide the built-in firewall capabilities like the routers. In the telecommunication and packet switched infrastructure switches play an important role. They transmit the data towards its destination based on the IP address.

Gateway

A gateway can be hardware or software and it acts as a bridge between two networks. A gateway is an entrance point of a network. A gateway connects a LAN with internet. A router acts as a gateway device in a network. In big networks, a computer server which acts as a gateway also acts as a proxy server and a firewall server. A gateway computer is usually attached with the router and switch.

Repeater

A repeater is a network device that is used to retransmit the weaker signals in a network. A repeater receives the signals on the electromagnetic or optical transmission mediums. Repeater removes the unwanted noise from the incoming signals. A series of the repeaters is used to amplify the signals in the big network. The can also relay the messages between subnetworks that use different protocols but a repeater can’t perform intelligent routing like the routers.

WAN Devices

Routers

A router is a network communication device that is used to connect two or more logically and physically different networks. A router can be used to connect a LAN to LAN, LAN to WAN and LAN to internet. A router acts as a post office where sorting and distribution of the posts (packets in case of routers) is done. A router works on the basis of an IP address. Every router has built-in operating system known as IOS. A router works on the network layer of the OS model and it routes the data towards the optimal path. Router uses the header information of the packets and forwarding table to define the best shortest possible path of the data.

ISDN Adaptors

ISDN (Integrated Services Digital Network) is a data communication method and it is used over the regular telephone lines. To use the ISDN lines, you need to install add-on adapters known as ISDN terminal adapters. ISDN Terminal Adapter works like a digital modem i.e. it converts the signals from digital to analog and vice versa. ISDN Terminal adapter is plugged into the serial port of the system. Some ISDN adapters have the feature of switching between digital and analog modes.

CSU/DSU

CSU/DSU stands for channel service unit and data service unit. CSU is used to connect a terminal to a digital line. DSU is used to perform the protective and diagnostic functions of the telecommunication line. CSU/DSU is a network device of the size of an external modem. The Channel service unit receives and transmits the signals from the wide area network line. CSU/DSU are two separate devices and they are sometimes used in conjunction with the T1 LAN cards.

Bridges

A bridge is a network communication device that is used to connect two segments of a LAN that uses the same protocol. Bridge is like a router but it doesn’t analyze the data before sending. A bridge operates at the data link layer of the OSI model and it can be used to connect the physically different networks and the networks that use the different protocols such as Ethernet and Token Ring.

Modems

A modem is communication device that performs two different functions such as modulation and demodulation i.e. it converts the digital data into analog and analog into digital. The faster types of the modems are used by the internet such as DSL modem, cable modem and optical modems. The features like BPS, auto answer, data compression, voice/data, fax capability and flash memory distinguish one modem from the other.

Brouter

Network bridge and router combined together to form a device known as brouter.

Very Small Aperture Terminal. (VSAT)

VSAT INTRODUCTION

VSAT is an abbreviation for a Very Small Aperture Terminal. It is basically a two-way satellite ground station with a less than 3 meters tall (most of them are about 0.75 m to 1.2 m tall) dish antenna stationed. The transmission rates of VSATs are usually from very low and up to 4 Mbit/s. These VSATs' primary job is accessing the satellites in the geosynchronous orbit and relaying data from terminals in earth to other terminals and hubs. They will often transmit narrowband data, such as the transactions of credit cards, polling, RFID (radio frequency identification) data, and SCADA (Supervisory Control and Data Acquisition), or broadband data, such as satellite Internet, VoIP, and videos. However, the VSAT technology is also used for various types of communications.

Equatorial Communications first used the spread spectrum technology to commercialize the VSATs, which were at the time C band (6 GHz) receive only systems. This commercialization led to over 30,000 sales of the 60 cm antenna systems in the early 1980s. Equatorial Communications sold about 10,000 more units from 1984 to 1985 by developing a C band (4 and 6 GHz) two way system with 1 m x 0.5 m dimensions.

In 1985, the current world's most used VSATs, the Ku band (12 to 14 GHz) was co-developed by Schlumberger Oilfield Research and Hughes Aerospace. It is primarily used to provide portable network connection for exploration units, particularly doing oil field drilling.

Implementations of VSAT

Currently, the largest VSAT network consists of over 12,000 sites and is administered by Spacenet and MCI for the US Postal Service (USPS). Walgreens Pharmacy, Dollar General, CVS, Riteaid, Wal-Mart, Yum! Brands (such as Taco Bell, Pizza Hut, Long John Silver's, and other fast food chains), GTEC, SGI, and Intralot also utilizes large VSAT networks. Many huge car corporations such as Ford and General Motors also utilizes the VSAT technology, such as transmitting and receiving sales figures and orders, along with announcing international communications, service bulletins, and for distance learning courses. An example of this is the "FordStar Network."

Two way satellite Internet providers also use the VSAT technology. Companies like StarBand, WildBlue, and HughesNet in the United States and SatLynx, Bluestream, and Technologie Satelitarne in Europe, and many other broadband services around the world in rural areas where high speed Internet connections cannot be provided use it too. A statistic from December 2004 showed that over a million VSATs were in place.

VSAT Configurations

Most of the current VSAT networks use a topology:

Star topology: This topology uses a central uplink site (eg. Network operations center (NOC)), which transports the data to and from each of the VSAT terminals using satellites

Mesh topology: In this configuration, each VSAT terminal will relay data over to another terminal through the satellite, acting as a hub, which also minimizes the need for an uplink site

Star + Mesh topology: This combination can be achieved (as some VSAT networks do) by having multiple centralized uplink sites connected together in a multi-star topology which is in a bigger mesh topology. This topology does not cost so much in maintaining the network while also lessening the amount of data that needs to be relayed through one or more central uplink sites in the network.

VSAT's Strengths

VSAT technology has many advantages, which is the reason why it is used so widely today. One is availability. The service can basically be deployed anywhere around the world. Also, the VSAT is diverse in that it offers a completely independent wireless link from the local infrastructure, which is a good backup for potential disasters. Its deployability is also quite amazing as the VSAT services can be setup in a matter of minutes. The strength and the speed of the VSAT connection being homogenous anywhere within the boundaries is also a big plus. Not to forget, the connection is quite secure as they are private layer-2 networks over the air. The pricing is also affordable, as the networks themselves do not have to pay a lot, as the broadcast download scheme (eg. DVB-S) allows them to serve the same content to thousands of locations at once without any additional costs. Last but not least, most of the VSAT systems today use onboard acceleration of protocols (eg. TCP, HTTP), which allows them to delivery high quality connections regardless of the latency.

VSAT Drawbacks

As with everything, VSAT also has its downsides. Firstly, because the VSAT technology utilizes the satellites in geosynchronous orbit, it takes a minimum latency of about 500 milliseconds every trip around. Therefore, it is not the ideal technology to use with protocols that require a constant back and forth transmission, such as online games. Also, surprisingly, the environment can play a role in slowing down the VSATs. Although not as bad as one way TV systems like DirecTV and DISH Network, the VSAT still can have a dim signal, as it still relies on the antenna size, the transmitter's power, and the frequency band. Last but not least, although not that big of a concern, installation can be a problem as VSAT services require an outdoor antenna that has a clear view of the sky. An awkward roof, such as with skyscraper designs, can become problematic.

CCIE Course outline

CCNA required. The learners must possess an expert level knowledge of WAN and LAN technologies and related skills in configuring Cisco IOS features on a variety of Cisco routers and switches, equivalent to Cisco Certified Internetwork Professional (CCIP) designation. This level of experience can be obtained by taking the courses from the Cisco CCIP curriculum (BSCI, BGP, QoS and MPLS) and by using the related remote labs to get the required skills. Taking some advanced courses (such as MPLST) and technology-related remote labs (for example IP multicast, Integrated IS-IS) is an additional benefit and highly recommended.

The CCIE Service Provider Bootcamp - Practice course provides the CCIE SP candidates with the skills required in the CCIE SP practice lab exam as well as during the daily activities of a CCIE SP engineer. The course focuses entirely on the practical experience. The students are exposed to four challenge labs that resemble and even exceed the complexity of the CCIE SP practical lab. The course is led by an experienced CCIE instructor who assists the candidates when needed and conducts an introductory/refresher and wrap-up session every day. The challenge labs expose the students to configure a complex large-scale internetwork resembling real-life scenarios as CCIEs face daily, including the technologies such as advanced BGP, EIGRP, IS-IS OSPF, QOS, IP Multicast, MPLS/VPN, MPLS TE, mVPN and LAN switching, as well as various IP services, network management and security features. The labs also allow the student to gain the advanced monitoring and troubleshooting skills. Although the course is especially tailored for CCIE SP applicants, this course also provides intensive skills for individuals who seek an advanced further education in service provider environments.

	# Introductory/refresher session and wrap-up session every day (led by the an experienced CCIE instructor) # CCIE SP Multiprotocol Challenge Lab 1 # CCIE SP Multiprotocol Challenge Lab 2 # CCIE SP Multiprotocol Challenge Lab 3 # CCIE SP Multiprotocol Challenge Lab 4

	The course is targeted at the CCIE SP candidates as well as at all individuals seeking expert level skills in internetworking.

Course Outline CCNP 3.0

• CCNP 3.0 COURSE OUTLINE

1. Network Requirements
1. Describing Network Requirements
2. Configuring EIGRP
1. Introducing EIGRP
2. Implementing and Verifying EIGRP
3. Configuring Advanced EIGRP Options
4. Configuting EIGRP Authentication
5. Using EIGRP in an Enterprise Network
3. Configuring OSPF
1. Introducing the OSPF Protocol
2. OSPF Packet Types
3. Configuring OSPF Routing
4. OSPF Network Types
5. Link-State Advertisements
6. Configuring OSPF Route Summarization
7. Configuring OSPF Special Area Types
4. The IS-IS Protocol
1. Introducing IS-IS and Integrated IS-IS Routing
2. Performing IS-IS Routing Operations
3. Configuring Basic Integrated IS-IS
5. Manipulating Routing Updates
1. Operating a Network Using Multiple IP Routing Protocols
2. Confuguring and Verifying Route Redistribution
3. Controlling Routing Update Traffic
4. Implementing Advanced Cisco IOS Features: Configuring DHCP
6. Implementing BGP
1. Explaining BGP Concepts and Terminology
2. Explainng EBGP and IBGP
3. Configuring Basic BGP Operations
4. Selecting a BGP Path
5. Using Route Maps to Manipulate Basic BGP Paths
7. Implementing Multicast
1. Explaining Multicast
2. IGMP and Layer 2 Issues
3. Explaining Multicast Routing Protocols
4. Multicast Configuration and Verification
8. Implementing IPv6
1. Introducing IPv6
2. Defining IPv6 Addressing
3. Implementing Dynamic IPv6 Addresses
4. Using IPv6 with OSPF and Other Routing Protocols
5. Using IPv6 with IPv4

Course Outline: Building Cisco Multilayer Switched Network v3.0

1. Network Requirements
1. Introducing Campus Networks
2. Defining VLANs
1. Implementing Best Practices for VLAN Topologies
2. Implementing VLANs
3. Implementing Trunks
4. Propagating VLAN Configurations with VTP
5. Correcting Common VLAN Configuration Errors
3. Implementing Spanning TREE
1. Describing the STP
2. Implementing RSTP
3. Implementing MSTP
4. Configuring Link Aggreagation with EtherChannel
4. Implementing Inter-VLAN Routing
1. Describing Routing Between VLANs
2. Enabling Routing Between VLANs on a Multilayer Switch
3. Deploying CEF-Based Multilayer Switching
5. Implementing High Availability in a Campus Environment
1. Configuring Layer 3 Redundancy with HSRP
2. Configuring Layer 3 Redundancy with VRRP and GLBP
6. Wireless LANs
1. Introducing WLANs
2. Describing WLAN Topologies
3. Explaining WLAN Technology and Standards
4. Configuring Cisco WLAN Clients
5. Implementing WLANs
6. Configuring WLANs
7. Configuring Campus Switches to Support Voice
1. Planning for Implementation of Voice in a Campus Network
2. Accommodating Voice Traffic on Campus Switches
8. Minimizing Service Loss and Data Theft in a Campus Network
1. Understanding Switch Security Issues
2. Protecting Against VLAN Attacks
3. Protecting Against Spoof Attacks
4. Describing STP Security Mechanisms
5. Preventing STP Forwarding Loops
6. Securing Network Switches

Course Outline: Implementing Secure Converged Wide Area Networks v1.0

1. Describe Network Requirements
1. Describing Network Requirements
2. Connect Teleworkers
1. Topologies for Facilitating Remote Connections
2. Describing Cable Technology
3. Describing DSL Technology
4. Configuring the CPE as the PPPoE Client
5. Configuring DSL with PPPoA
6. Verifying Broadband ADSL Configurations
3. Implement Frame Mode MPLS
1. Introducing MPLS Networks
2. Assigning MPLS Labels to Packets
3. Implementing Frame Mode MPLS
4. MPLS VPN Technology
4. IPSec VPNs
1. IPSec Components and IPSec VPN Features
2. Site-to-Site IPSec VPN Operations
3. Configuring IPSec Site-to-Site VPN Using SDM
4. Configuring GRE Tunnels over IPSec
5. High Availability Options
6. Configuring Cisco Easy VPN and Easy VPN Server Using SDM
7. Implementing the Cisco VPN Client
5. Cisco Device Hardening
1. Mitigating Network Attacks
2. Disabling Unused Cisco Router Network Services and Interfaces
3. Securing Cisco Router Installations and Administrative Access
4. Mitigating Threats and Attacks with Access Lists
5. Securing Management and Reporting Features
6. Configuring AAA on Cisco Routers
6. Cisco IOS Threat Defense Features
1. Introducing the Cisco IOS Firewall
2. Implementing Cisco IOS Firewalls
3. Introducing Cisco IOS IPS
4. Configuring Cisco IOS IPS

Course Outline: The Optimizing Converged Cisco Networks v1.0

1. Describe Network Requirements
1. Describing Network Requirements
2. Describe Cisco VoIP Implementations
1. Introducing VoIP Networks
2. Digitizing and Packetizing Voice
3. Encapsulating Voice Packets for Transport
4. Calculating Bandwidth Requirements
5. Implementing Voice Support in an Enterprise Network
3. Introduction to IP QoS
1. Introducing QoS
2. Identifying Models for Implementing QoS
3. Methods for Implementing QoS
4. Implement the DiffServ QoS Model
1. Introducing Classification and Marking
2. Using NBAR for Classification
3. Introducing Queuing Implementations
4. Configuring WFQ
5. Configuring CBWFQ and LLQ
6. Introducing Congestion Avoidance
7. Introducing Traffic Policing and Shaping
8. WAN Link Efficiency Mechanisms
9. Implementing QoS Pre-Classify
10. Deploying End-to-End QoS
5. Implement AutoQoS
1. Introducing AutoQoS
2. Mitigating Common AutoQoS Problems
6. Implement Wireless Scalability
1. WLAN QoS Implementation
2. Introducing 802.1x
3. Configuring Encryption and Authentication on Lightweight Access Points
4. WLAN Management

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Network Courses(CCNA)

1-CCNA
2-CCNP
3-CCIE

• CCNA COURSE OUTLINE:

I. Building a Simple Network

1. Exploring the Functions of Networking
2. Securing the Network
3. Understanding the Host-to-Host Communications Model
4. Understanding the TCP/IP Internet Layer
5. Understanding the TCP/IP Transport Layer
6. Exploring the Packet Delivery Process
7. Understanding the Ethernet
8. Connecting to an Ethernet LAN

II. Ethernet LANs

1. Understanding the Challenges of Shared LANs
2. Solving Network Challenges with Switched LAN Technology
3. Exploring the Packet Delivery Process
4. Operating Cisco IOS� Software
5. Starting a Switch
6. Understanding Switch Security
7. Maximizing the Benefits of Switching
8. Troubleshooting Switch Issues

III. Wireless LANs

1. Exploring Wireless Networking
2. Understanding WLAN Security
3. Implementing a WLAN

IV. LAN Connections

1. Exploring the Functions of Routing
2. Understanding Binary Basics
3. Constructing a Network Addressing Scheme
4. Starting a Route
5. Configuring a Cisco� Router
6. Exploring the Packet Delivery Process
7. Understanding Cisco� Router Security
8. Using Cisco� SDM
9. Using a Cisco� Router as a DHCP Server
10. Accessing Remote Devices

V. WAN Connections

1. Under WAN Technologies
2. Enabling the Internet Connection
3. Enabling Static Routing
4. Configuring Serial Encapsulation
5. Enabling RIP

VI. Network Environment Management

1. Discovering Neighbors on the Network
2. Managing Router Startup and Configuration
3. Managing Cisco� Devices

VII. Small Network Implementation

1. Introducing the Review Lab

VIII. Medium-Sized Switched Network Construction

1. Medium-Sized Switched Network Construction
2. Implementing VLANs and Trunks
3. Improving Performance with Spanning Tree
4. Routing Between VLANs
5. Securing the Expanded Network
6. Troubleshooting Switched Networks

IX. Medium-Sized Routed Network Construction

1. Reviewing Routing Operations
2. Implementing VLSM

X. Singe-Area OSPF Implementation

1. Implementing OSPF
2. Troubleshooting Switched Networks

XI. EIGRP Implementation

1. Implementing EIGRP
2. Troubleshooting EIGRP

XII. Access Control Lists

1. Access Control Lists
2. Introducing ACL Operation
3. Configuring and Troubleshooting ACLs

XIII. Address Space Management

1. Scaling the Network with NAT and PAT
2. Transitioning to IPv6

XIV. LAN Extension into a WAN

1. Introducing VPN Solutions
2. Establishing a WAN Connection with Frame Relay
3. Troubleshooting Frame Relay WANs

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Win Xp Tips,Tricks (Tested)

TURN NUMLOCK ON AT LOGON.

NumLock does not toggle on by default (system-wide), even if you have it set in your PC's BIOS, because of XP's multi-user functionality. Guess Microsoft doesn't know everyone actually turns it on, which should be reason enough for what acts as "default"...
Anyway, you can hack the Windows Registry to change this behavior, or run a script at logon to turn NumLock on.
1. To enable NumLock through the Registry:
* Open Windows' Registry Editor (START > RUN, type "REGEDIT").
*. Navigate to HKEY_USERS\.Default\Control Panel\Keyboard.
*. Change the value for InitialKeyboardIndicators from 0 to 2.
2. To enable NumLock using a script, see this MS Knowledgebase article for complete instructions:
CODE
http://support.microsoft.com/directory/article.asp?ID=KB;EN-US;Q262625

Option 1 is the quicker method, but if you have more than one user on your system and one or more don't want NumLock on (stranger things have been known of), then option 2 is the way to go since it allows you to only attach the script to specific users.

FREE DISK SPACE BY DELETING RESTORE POINTS.

Start button-all programs-accessories-system tools-cleanup-more options. You will have the option of deleting your restore points.When your done creat one
restore point as a back up.

HOW TO REAL GET RID OF UNNECESSARY SOFTWARE

to uninstall things like msn messenger and other hidden installs thru add remove programs, do this: find sysoc.inf (you might have to enable "show hidden files" and "show hidden/protected system folders" in explorer) and open it in notepad replace all ",hide" with "," (both with out quotes) which is easiest to do with the replace all command under edit then in add/remove programs under add/remove windows compnents and whole new list of things to uninstall and add are now listed (such as internet explorer)

HAVING PROGRAMS RUN WHEN WINDOWS LOADS SLOWS DOWN YOUR STARTUP.

There are two ways do disable programs that may be in your startup (like icq, messanger,) The easiest is to do the following:
1. start --> run --> msconfig
2. Click on the "startup" tab (furthest right)\
3. Unclick any items you don't want to load when windows starts.
The second is by deleting registry entrys, this can be done the following way:
1. Start --> run --> regedit
2. Navigate to : HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
3. Delete any entry's that you don't want to load up

TURN OFF INDEXING TO SPEED UP XP.

Windows XP keeps a record of all files on the hard disk so when you do a search on the hard drive it is faster. There is a downside to this and because the computer has to index all files, it will slow down normal file commands like open, close, etc. If you do not do a whole lot of searches on your hard drive then I suggest turnning this feature off:
1. Control Panel
2. Administrative Tools
3. Services
4. Disable Indexing Services

HALF LIFE AND WINDOWS XP.

1. How to recover from incompatible drivers
Before you install new drivers set a system restore point. Start>All programs>Accessories>system tools>system restore
After your new drivers don't work reset your computer. Press F8 repeatedly as soon as the BIOS screen disappears, and before the Windows XP screen appears. Select safe mode. Use system restore again to undo your mess.
2. Video Drivers
The NVidia drivers that come with XP do not allow you to run Half Life in OpenGL. Update to the newest drivers.
Despite the fact that they are not official drivers, 22.50 was the only set which worked
3. Sound Drivers
Use windows update to update Creative drivers.
4. Fixing screen flicker
Windows XP defaults to 60Hz for games. A fix is available here:
CODE
http://www.fileplanet.com/dl/dl.asp?/planetquake/ztn/nvreffix-setup.exe

Select "set: ev ery resolution to monitor's maximum supported rate"
5. Fixing lag
If you are having trouble with lag, try disabling the windows XP firewall. Go to control panel>network connections. Select connection, right click, properties, advanced, untick the firewall.




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To Configure Your LAN Using a Network Hub or Router:

To Configure Your LAN Using a Network Hub or Router:

The following materials are required:

• 1 10/100 multi-port Ethernet hub or Router
• 10/100 Ethernet card and driver disks for each computer
• Category 5 RJ-45 Ethernet cables
• 1 category 5, crossover cable (If hub does not have an up-link port)

If one computer is already connected to the Internet, install and configure the network card in your second computer. Follow all of the directions provided by the network card manufacturer, using the driver diskettes supplied with the card.

• Connect the adsl modem, computers, and network hub or Router, as illustrated in figure one
• If your hub has a built in up-link port or your Router has a WAN(Wide Area Network)port, use a regular, straight through RJ-45 cable to connect the ADSL Modem from the hub
• Hubs without an up-link port require a special crossover cable to connect the ADSL Modem to the hub's first port
• Connect the primary and secondary computers to individual ports on the hub using standard, Category 5, RJ-45 Ethernet cable Do not plug into the number one port on the hub.
• Once you obtain a solid ADSL status green light ,and a solid link light(s) on the hub and the adsl modem, the network connection is established

Configure the second computer using the same steps performed on your primary system. Windows 95/98, NT and Macintosh computers all require an installed and configured TCP/IP stack, using DHCP.

Security Note

If you enable File and Print Sharing on your network, drives and printers must be password protected, in order to maintain network security. We suggest that you install a firewall if you are going to want to use File and printer sharing on your internal network. Use the troubleshooting guide at the end of this document if you find there is no network connection.

Figure 1

To Configure Your LAN with two Network Cards in one Computer

The following materials are required;

• A second network card and drivers for your primary computer
• A network card and drivers for you second computer
• Category 5 RJ-45 Ethernet

In this scenario, your primary computer requires a second network card configured according to the manufacturer's specifications. The original DHCP settings for the primary computer remain the same. Install a separate TCP/IP stack for the second network card.

Figure 2 demonstrates what you see when all components for two (2) network cards are properly installed. The Computer Name remains unchanged. NT Service Packs must be reinstalled after you configure the new network card, as per Microsoft recommendations.

Install the network card into subsequent computers using the manufacturer's driver diskettes. Again, use standard DHCP settings for the network card.

Figure 2

Security Note

If you enable File and Print Sharing on your network, drives and printers must be password protected, in order to maintain network security. Use the troubleshooting guide at the end of this document if you find there is no network connection.

Connect the primary computer, secondary computer and ADSL Modem, as shown in Figure 3. You are now ready to install the software on the second computer. Follow the troubleshooting guide at the end of this document if there is no network connection.

Figure 3

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Types Of Router

There are basically 2 types of routers.

1. Static router: In this type the system administrator is defining the shortest path in the network.

In static routers, system administrator is giving the shortest path by giving some commands.

Static router is not so efficient than dynamic routing. static routing have some limitations and used in the relatively

Smaller range of the network.

2. Dynamic router: In the dynamic routing the router can define the shortest path by itself between the nodes.

Dynamic routing is the clever type of routing and normally used in lot of places in the world while routing. In this type the router is programmed in such a way that router itself is taking the shortest path and system administrator does not have to do any thing. It saves time and cost.




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Types Of Networks

• LAN - Local Area Network
• WLAN - Wireless Local Area Network
• WAN - Wide Area Network
• MAN - Metropolitan Area Network
• SAN - Storage Area Network, System Area Network, Server Area Network, or sometimes Small Area Network
• CAN - Campus Area Network, Controller Area Network, or sometimes Cluster Area Network
• PAN - Personal Area Network
• DAN - Desk Area Network

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