Subnetting Project this lab scenario, you are the network administrator for the new startup MMORPG developer, owdy Gamerz. The organization has obtained the block of public IPv4 network addresses epresented by 224.151 . . 0/24, where the third octet is equal to the last two digits of your ayUTSA ID (abc123). For example, if your myUTSA ID is xyz574, then the third octet for our assignment is 74, so you have the block of network addresses 224.151.74.0/24. Nrite down your assigned network address: 224.151. .0/24 Turn-in Requirements: To complete the assignment, upload a Word (.docx) or Adobe (.pdf) ile with answers to the questions below as your submission to the M06 Lab assignment in Blackboard. 1. (5 pts) What is your assigned network address? 2. ( 5 pts) What is the subnet mask (dotted decimal form) for this network? 3. ( 5pts) What is the broadcast address for this network? 4. ( 5 pts) How many addressable hosts are available for this network? 5. ( 5 pts) List the reasons subnetting is a good network design practice? Following good network design practices, you decide to segment this network into 4 equal subnets, to be used or shared among the different Rowdy Gamezz departments: Software Development, Technical Support, Marketing/Sales, and Management \& Human Resources. 6. ( 5 pts) To create 4 subnets, you must borrow how many bits from the host portion of the network? 7. ( 5 pts) What is the subnet mask (dotted decimal form) for these new subnets? 8. (5 pts) Write the network addresses, using CIDR notation, of the four subnets:
The Correct Answer and Explanation is :
1. Assigned Network Address:
For this project, based on your myUTSA ID (which should end in “abc123”), your assigned network address is:
- 224.151.123.0/24
2. Subnet Mask:
The subnet mask in dotted decimal form for the /24 network is:
- 255.255.255.0
This means the first 24 bits are used for the network portion, and the remaining 8 bits are for the host portion.
3. Broadcast Address:
The broadcast address is the last address in the subnet. Since the network address is 224.151.123.0/24, the broadcast address for this network is:
- 224.151.123.255
This address is used to communicate with all devices in the network.
4. Addressable Hosts:
The total number of available addresses in a /24 network is 256 (from 224.151.123.0 to 224.151.123.255). However, the first address (224.151.123.0) is the network address, and the last address (224.151.123.255) is the broadcast address, so they cannot be assigned to hosts.
Thus, the number of addressable hosts is:
- 254 hosts (256 – 2 addresses).
5. Reasons Subnetting is Good Network Design Practice:
Subnetting is a crucial part of network design for several reasons:
- Efficient IP Address Usage: Subnetting allows you to allocate IP addresses more efficiently, reducing wastage and ensuring that each subnet gets just the right number of addresses for its needs.
- Improved Security: By creating separate subnets, you can isolate different departments or devices, which adds a layer of security by limiting the scope of broadcasts and potential attacks.
- Network Performance: Subnetting reduces network congestion by dividing large networks into smaller, manageable sections, improving overall performance.
- Simplified Network Management: Smaller subnets are easier to manage, troubleshoot, and monitor, especially as the organization grows.
- Better Control: Subnetting provides better control over routing, reducing the complexity of routing tables in large networks.
6. Borrowed Bits for 4 Subnets:
To create 4 subnets, you need to borrow bits from the host portion of the network. The original network is a /24, meaning 8 bits are used for hosts. To divide it into 4 subnets, you need to borrow 2 bits (since 2^2 = 4).
So, you need to borrow 2 bits from the host portion.
7. New Subnet Mask:
After borrowing 2 bits, the new subnet mask becomes /26. This means the subnet mask is now 26 bits for the network portion and 6 bits for the host portion.
In dotted decimal form, the subnet mask is:
- 255.255.255.192
8. Network Addresses of the Four Subnets:
With a /26 subnet mask, each subnet will have 64 addresses (2^6 = 64). The network addresses for the four subnets are:
- 224.151.123.0/26
- 224.151.123.64/26
- 224.151.123.128/26
- 224.151.123.192/26
Each subnet has 62 usable addresses for hosts (64 – 2 for network and broadcast addresses).
By subnetting, you ensure better organization and efficiency in addressing different departments within the company. Each subnet can be assigned to a specific department, which improves network performance, security, and manageability.