Implementing The Remote Working System Computer Science Essay

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I have to produce a report which outlines the benefits of implementing the remote working system for the company.

List the potential requirements of the basic scenario outlined in the introduction are given bellow

I have chosen to need a topology, transmission media, hardware requirements of the servers and other network components. The clients are supposed to access this remote working system through the internet. The clients need to chat with each other and send each other emails and to be able to access the central system of the company.

Cisco use a system called Easy VPN to allow you to push policies from a central device to remote devices and this can be done with hostname so fixed IP address may not be required in this situation.

There are advantages and disadvantages to working from home both for employers and employees. Some of the advantages include:

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A reduction in the time spent traveling to work and the amount of expenses incurred as a result of commuting - this can also have a positive impact on the environment with a reduction in CO2 emissions and congestion at major traffic hot spots

Employers may be able to reduce their office space and therefore cut down on their expenses for premises - desk sharing is now a common practice which enables staff to alternate between working at home and in the office

Disadvantages of working within the company can be:

A feeling of isolation with a lack of involvement in shared decision making

Reduced access to company information and involvement in team activities or training

The temptation to work longer hours and not to take regular breaks, including missing lunch

Benefits of remote working system

It has less operational risks

Save time if it operated frequently

Operate from anywhere & make the device as portable

Task 2

Introduction:

I have to setup a small wireless networking in my collage with the following configuration.

Requirements:

Wireless router (With wireless and wired features),

Wireless network adaptor,

3 computer systems with MS Windows.

(i)

At first I setup wireless network adaptor in PC#1

Figure: PC#1

Now I connect the wireless network adaptor in PC#1, and also show new hardware wizard.

Figure: Found new hardware

After that insert the wireless network adaptor software CD in the CD-ROM, if auto play is on then it will show Install software.

Figure: Browse CD-ROM

Figure: Install from CD

Figure: Preparing to Install

Now click next to continue install

Figure: Install Software

Now select destination folder and click next

Figure: Installing Software

Figure: Installing Software

Now I have to select the country and select agree

Figure: Select Country

Select netgear small wizard and click to next

Figure: Install Software

Now click yes and click to next

Figure: Install Software

Now select yes, the AP/router supports either of them and I want to use it and then click to next

Figure: Install Software

To connecting to the wireless network using puss button select yes and click to next

Figure: Connecting to Wireless network

Now puss the WPS button and select next to connecting to my wireless router

Figure: Connecting to Wireless Network

It may take two minutes to complete the setup

Figure: Connecting to Wireless Network

Now click finish to connecting to the network

Figure: Connecting to Wireless Network

Now I have select scan and found network and click connect to completely connect to the Wireless network.

Figure: Network Statistics

Figure: Shows IP and MAC address

Figure: Wireless Network Connection Statistics

Now I have to setup wireless network adaptor in PC#2

Figure: PC#2

Then I connect the wireless network adaptor in PC#2, and it found new hardware, and also show new hardware wizard.

Figure: Found new hardware

Now insert the wireless network adaptor software CD in the CD-ROM

Figure: Install Software

Now select the language and click install software then it show software update check

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Figure: Software Update Check

Now it preparing to install

Figure: Install Shield Wizard

Now click next to install

Figure: Install Software

Select destination folder and click next

Figure: Install Software

Figure: Install Software

Select the country and select agree

Figure: Install Software

Select netgear small wizard and click to next

Figure: Install Software

Then click to next

Figure: Install Software

Now select yes, and then click to next

Figure: Install Software

To connecting to the wireless network using puss button select yes and click to next

Figure: Connecting to Wireless network

Now puss the WPS button and select next to connecting to my wireless router

Figure: Connecting to Wireless Network

It may two minutes to complete the setup

Figure: Connecting to Wireless Network

Now click finish to connecting to the network

Figure: Connecting to Wireless Network

I have scan it and found network and click connect to completely connect to the Wireless network.

Figure: Network Statistics

Figure: Shows IP and MAC address

Figure: Wireless Network Statistics

Now I setup network adaptor in PC#3

Then I plug the NIC in PC#3, and it show new hardware wizard.

Figure: Found New Hardware

Figure: Hardware Update Wizard

Click next for scan new hardwires software

Figure: Install Software

Now select network adaptor and click next

Figure: Select Network Adaptor

Now it takes few times to install software

Figure: Install Software

Now click to finish the install

Figure: Completing Installation

Now it's successfully install the NIC on PC#3

Figure: Successfully Install the NIC

Step 2

The field of computer networking once sat squarely in the domain of techies. Equipment manufacturers, service providers, and "experts" that study the field of networking tend to go quite heavy on technical jargon. The wireless networking industry is gradually improving on this legacy, making products more consumer-friendly and easier to integrate into the home. But there is still much work for the industry to do.

Used component for the connectivity-

Wireless Router

Network Adaptor Card

Three Computer System

PC#1 PC#2 PC#3

Step 3

I have setup security for the wireless connectivity.

Security Encryption (WPA-PSK)

If selected, you must use TKIP encryption, and enter the WPA pass phrase (Network key). Enter a word or group of printable characters in the Pass phrase box. The Pass phrase must be constituted of either 8 to 63 ASCII characters or exactly 64 hex digits. A hex digit is one of the following characters:

0, 1, 2... 8, 9, A, B, C, D, E, and F.

Security Encryption (WPA2-PSK)

WPA2 is a newer version of WPA. Only select this if all the wireless clients in my network support WPA2. If selected, I have must use AES encryption, and enter the WPA pass phrase (Network key). Enter a word or group of printable characters in the Pass phrase box. The Pass phrase must be constituted of either 8 to 63 ASCII characters or exactly 64 hex digits. A hex digit is one of the following characters:

0, 1, 2, ..., 8, 9, A, B, C, D, E, and F.

Security Encryption (WPA-PSK + WPA2-PSK)

This selection allows clients to use either WPA (with TKIP, broadcast packets also use TKIP.) or WPA2 (with AES). If selected, encryption must be TKIP + AES. The WPA pass phrase (Network key) must also be entered. To reach maximum wireless performance, the client like WN511B must connect to this router using WPA2 (with AES). For clients connecting in WPA-PSK( with TKIP), the maximum wireless speed will be at 802.11g. Enter a word or group of printable characters in the Pass phrase box. The Pass phrase must be constituted of either 8 to 63 ASCII characters or exactly 64 hex digits. A hex digit is one of the following characters:

0, 1, 2, ..., 8, 9, A, B, C, D, E, and F.

Figure: Select Encryption method

I have chosen WPA2-PSK [AES] Encryption Method for Wireless Security

Click Apply to have my changes take effect.

Step 4

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Now I have to assign the Gateway IP as 192.168.248.57 and make it as a DHCP server. Assign the range of IP addresses for the nodes from 192.168.248.60-90

LAN TCP/IP Setup

IP Address: Type the IP address of your router in dotted decimal notation (192.168.248.57).

IP Subnet Mask: The subnet mask specifies the network number portion of an IP address. Your router will automatically calculate the subnet mask based on the IP address that you assign. Unless you are implementing sub netting, use 255.255.255.0 as the subnet mask (computed by the router).

Use Router as DHCP Server

The Router is set up by default as a DHCP (Dynamic Host Configuration Protocol) server, which provides the TCP/IP configuration for the all the computers that are connected to the router.

Starting IP Address: This box specifies the first of the contiguous addresses in the IP address pool. 192.168.248.60 is the start address.

Ending IP Address: This box specifies the last of the contiguous addresses in the IP address pool. 192.168.248.90 is the ending address.

Figure: Assign the IP

Click Apply to save the new settings to the router.

Figure: Wireless Network Connection Status

Step5

Change the SSID of the wireless access point as PTLSJC.

Changing Network Name (SSID)

Enter a value of up to 32 alphanumeric characters. The same Name (SSID) must be assigned to all wireless devices in your network. The default SSID is NETGEAR, This value is also case-sensitive. For example, NETGEAR is not the same as NETGEAr.

New SSID=PTLSJC

Figure: Change SSID

Figure: Review Wireless Settings

Step 6

I have produce sereen shots for the following: Router configuration sereen, wireless networking configuration of the nodes, "View avalable wireless screen" with given SSID, and list of the connected nodes from the router.

Figure: Router Configuration Screen

Figure: Wireless configuration#1 of a Node

Figure: Wireless configuration#2 of a Node

Figure: View Available Wireless Networks#1 from a Node

Figure: View Available Wireless Networks#2 from a Node

Figure: List of Wireless Nodes connected with the Router

Step 7

I have copy a file from a shared folder from machine 1 to machine 2 via wireless network.

Figure: A Shared Folder on PC#2

Task 3

Introduction:

After researching various Wireless Broadband Router for home/small office available in my local market by visiting the computer shops, I have chosen 3 popular brands along with their price, features and limitations are given below.

NETGEAR

Model

Price(BDT)

Feature

Limitation

N300 WIRELESS ROUTER

WNR2000

4800

Dimensions: 177.5 x 130 x 35 mm (7 x 5.1 x 1.4 in)

IEEE® 802.11 b/g/n 2.4 GHz

Double firewall protection (SPI and NAT firewall)

Broadband usage meter measures Internet usage

Power and Wi-Fi on/off buttons

Five (5) 10/100 (1 WAN and 4 LAN) Ethernet ports with auto-sensing technology

Multiple SSID guest networks (separate security and access restrictions)

Broadband usage meter measures Internet usage

Power and Wi-Fi on/off buttons

It's an 802.11 b/g cards, so that its transfer rate not more than from 11 mbps to 54mbps.

TP-LINK

Model

Price(BDT)

Feature

Limitation

TP-LINK Technologies TP-Link TL-WR541G Wireless router - 4-port switch (integrated) - EN, Fast EN, IEEE 802.11b, IEEE 802.11g

3500

The TL-WR541G 54Mbps Wireless Router integrates firewall

NAT-router and Wireless AP

The TL-WR541G 54Mbps Wireless Router will allow you to connect your network wirelessly better than ever, sharing Internet access, files and fun, easily and securely.

It is compatible with all IEEE 802.11g and IEEE 802.11b products

It also supports virtual server and DMZ host for port triggering needs, as well as remote management and log so that network administrators can manage and monitor the network on real time.

certain network access

It's an 802.11 b/g cards, so that its transfer rate not more than from 11 mbps to 54mbps.

D-Link

Model

Price(BDT)

Feature

Limitation

DI-524 High Speed 2.4GHz (802.11g) Wireless Router

11500

Up to 54Mbps

Advanced Firewall & Parental Control

Quick and Easy Setup

802.11g Standard, 802.11b Compatible

It's an 802.11 g cards, so that its transfer rate not more than 54 mbps.

Summary:

I am visiting many computer shops I found three popular brand Wireless Broadband Routers. I have collected their price, features and limitations.