Student Information

Acknowledging and recognizing the College's academic integrity and student discipline policies while working on this assessment, affix your name and current date below.

Student Name: ____________

Date (dd/mm/yy): _______________

Instructions

1. Type your name and date in the placeholders above.
2. Read the activity background.
3. Fill out the problems and questions below with appropriate answers.  Show your solution or calculations to earn marks for Problem 1 to 4. 
4. Once complete, submit the file including your solution or calculations to Learn dropbox under Activity - Computer Network

Background 

The ability to work with IPv4 subnets and determine network and host information based on a given IP address and subnet mask is critical to understanding how IPv4 networks operate. This activity is designed to reinforce how to compute network IP address information from a given IP address and subnet mask. When given an IP address and subnet mask, you will be able to determine other information about the subnet.

1. Example Problem

Given:
Host IP Address:	192.168.100.148
Original Subnet Mask	255.255.255.0
New Subnet Mask:	255.255.255.224

 

Find:
Original Subnet Mask Prefix	/24
New Subnet Mask Prefix	/27
Number of Subnet Bits	3
Number of Subnets Created	8
Number of Host Bits per Subnet	5
Number of Hosts per Subnet	30
Network Address of this Subnet	192.168.100.128
IPv4 Address of First Host on this Subnet	192.168.100.129
IPv4 Address of Last Host on this Subnet	192.168.100.158
IPv4 Broadcast Address on this Subnet	192.168.100.159
Class A, B, C, D or E	C
Public or Private	Private

Problem1: Please provide calculation

Given:
Host IP Address:	192.168.157.217
Original Subnet Mask	255.255.255.0
New Subnet Mask:	255.255.255.224

 

Find:
Original Subnet Mask Prefix
New Subnet Mask Prefix
Number of Subnet Bits
Number of Subnets Created
Number of Host Bits per Subnet
Number of Hosts per Subnet
Network Address of this Subnet
IPv4 Address of First Host on this Subnet
IPv4 Address of Last Host on this Subnet
IPv4 Broadcast Address on this Subnet
Class A, B, C, D or E
Public or Private

Problem 2: Please provide calculation

Given:
Host IP Address:	10.17.129.18
Original Subnet Mask	255.0.0.0
New Subnet Mask:	255.255.255.128

 

Find:
Original Subnet Mask Prefix
New Subnet Mask Prefix
Number of Subnet Bits
Number of Subnets Created
Number of Host Bits per Subnet
Number of Hosts per Subnet
Network Address of this Subnet
IPv4 Address of First Host on this Subnet
IPv4 Address of Last Host on this Subnet
IPv4 Broadcast Address on this Subnet
Class A, B, C, D or E
Public or Private

Problem 3: Please provide calculation

Given:
Host IP Address:	172.25.77.249
Original Subnet Mask	255.255.0.0
New Subnet Mask:	255.255.255.0

 

Find:
Original Subnet Mask Prefix
New Subnet Mask Prefix
Number of Subnet Bits
Number of Subnets Created
Number of Host Bits per Subnet
Number of Hosts per Subnet
Network Address of this Subnet
IPv4 Address of First Host on this Subnet
IPv4 Address of Last Host on this Subnet
IPv4 Broadcast Address on this Subnet
Class A, B, C, D or E
Public or Private

Problem 4: Please provide calculation

Given:
Host IP Address:	210.166.157.138
Original Subnet Mask	255.255.255.0
New Subnet Mask:	255.255.255.224

 

Find:
Original Subnet Mask Prefix
New Subnet Mask Prefix
Number of Subnet Bits
Number of Subnets Created
Number of Host Bits per Subnet
Number of Hosts per Subnet
Network Address of this Subnet
IPv4 Address of First Host on this Subnet
IPv4 Address of Last Host on this Subnet
IPv4 Broadcast Address on this Subnet
Class A, B, C, D or E
Public or Private

Questions

1. Why is the subnet mask so important when analyzing an IPv4 address?

2. What is the MAC address of student 1's laptop?

3. What portion of student 1's MAC address is the OUI (Organizationally Unique Identifier)?

4. What is the name of the manufacturer for student 1's MAC address?

Note:  You can use https://macvendors.com/ to find this information.

5. What portion of student 1's MAC address is vendor assigned?

6. What is the MAC address of student 2's laptop?

7. What portion of student 2's MAC address is the OUI (Organizationally Unique Identifier)?

8. What is the name of the manufacturer for student 2's MAC address?

Note:  You can use https://macvendors.com/ to find this information.

9. What portion of student 2's MAC address is vendor assigned?