Sec 6040 Web And Data Assessment Answers
Questions:
1)Using the diagram Provided please identify the routers and the switches?
3)Identify what additional devices are needed (but not necessarily shown) for the basic functioning of a network. For each additional device that is identified please provide the necessary network information. This does not include User file server, printers, scanners, etc.
Answers:
- Using the diagram provided please identify the routers and the switches?
|
Device Image |
Name |
Functionality |
|
|
Router |
A router is a networking device whose functionality is to route packets from one to another. The redirects the packets as per the routing table configuration. |
|
|
Switch |
A switch is a networking device that expands the operability of a network. That is to say, it provides more ports for the computing devices to connect to the network. |
(Todd, 2016)
- Please Assign IP addressing to each of the devices shown. If a device is meant to be a DHCP client, then indicate as such. For each system, please include the subnet mask and gateway for each system. If a system does not have a gateway address, indicate by not applicable. (Add additional rows as needed) (50 points)
|
Subnet X | ||||
|
System |
Interface |
IP Address |
Subnet Mask |
Gateway Address |
|
Internet |
Et0 |
200.200.167.2 |
255.255.255.252 |
NA |
|
Lower Router |
S0/0/0 |
200.200.167.1 |
255.255.255.252 |
NA |
|
S0/0/1 |
172.16.168.1 |
255.255.255.252 |
NA | |
|
G0/0 |
172.16.170.1 |
255.255.255.0 |
NA | |
|
Upper Router |
S0/0/1 |
172.16.168.2 |
255.255.255.252 |
NA |
|
G0/0 |
172.16.169.1 |
255.255.255.0 |
NA | |
|
Device in Subnet A |
NIC |
172.16.169.2 |
255.255.255.0 |
172.16.169.1 |
|
Device in Subnet B |
NIC |
172.16.170.2 |
255.255.255.0 |
172.16.170.1 |
|
Device in Subnet C |
NIC |
172.16.171.2 |
255.255.255.0 |
172.16.171.1 |
|
Network Admin System |
NIC |
172.16.172.2 |
255.255.255.0 |
172.16.172.1 |
Explanations and assumptions
Assumptions
- We assume that our public IP as provided by ISP is 200.200.167.2/2.
- We assume that our private IP is 172.16.168.0/24.
- We assume that system admin system is in a different VLAN
- We assume that ISP router is represented inform of a cloud.
- We assume that the router, switch and cloud interfaces are connected as image below
Explanations
Given the IP address of 172.16.168.0/24 we had to come up with five subnets. Four of the subnets are treated equally in terms of number of address hosts (254 valid hosts) except for the subnet that is between the upper and lower router whose address host has only 2 hosts.
- Identify what additional devices are needed (but not necessarily shown) for the basic functioning of a network. For each additional device that is identified please provide the necessary network information. This does not include – User file server, printers, scanners, etc.
- Firewall
Firewall hardware system is necessary to filter incoming and outgoing traffic. This offers security to our network making it less vulnerable to cyber-attacks. The firewall will be positioned between our lower router and the ISP router represented as cloud. When the firewall is included, our new addressing table will look as below:
|
Subnet X | ||||
|
System |
Interface |
IP Address |
Subnet Mask |
Gateway Address |
|
Internet |
Et0 |
200.200.167.2 |
255.255.255.252 |
NA |
|
Firewall |
Fe0/0 |
200.200.167.1 |
255.255.255.252 |
NA |
|
|
Fe0/1 |
172.16.173.1 |
255.255.255.252 |
NA |
|
Lower Router |
S0/0/0 |
172.16.173.2 |
255.255.255.252 |
NA |
|
S0/0/1 |
172.16.168.1 |
255.255.255.252 |
NA | |
|
G0/0 |
172.16.170.1 |
255.255.255.0 |
NA | |
|
Upper Router |
S0/0/1 |
172.16.168.2 |
255.255.255.252 |
NA |
|
G0/0 |
172.16.169.1 |
255.255.255.0 |
NA | |
|
Device in Subnet A |
NIC |
172.16.169.2 |
255.255.255.0 |
172.16.169.1 |
|
Device in Subnet B |
NIC |
172.16.170.2 |
255.255.255.0 |
172.16.170.1 |
|
Device in Subnet C |
NIC |
172.16.171.2 |
255.255.255.0 |
172.16.171.1 |
|
Network Admin System |
NIC |
172.16.172.2 |
255.255.255.0 |
172.16.172.1 |
(Academy, 2014)
Network topology will look as below:
- For the wireless portion of the network, identify additional details required for its proper functionality. (25 points)
Wireless Access point requires the following details to work properly:
- SSID: this is the Wi-Fi network name. The network name will used to identify your network to the users. This name should be any unique name but easily identifiable with your organization.
- Security: the wireless network portion requires security setting that will authenticate users and the security will encrypt their data. This will control access to the network and will specify level of privacy for information send over the network.
References
Academy, C. N. (2014). Routing and Switching Essentials Companion Guide: Rout Swit Esse Comp Guid. Indiana Polis: Cisco Press.
Todd, L. (2016). CCNA Routing and Switching Complete Review Guide: Exam 100-105. Hoboken: John Wiley & Sons.
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