DNS Lookup  «Prev 

IP Address Subnet Requirements

Question: What are the characteristics of a Class C network ID that has been subnetted?
When a Class C network ID is subnetted, it is divided into multiple subnets, each with its own unique network ID and subnet mask. The characteristics of a Class C network ID that has been subnetted include the following:
  1. Increased network capacity: Subnetting a Class C network ID allows for increased network capacity by dividing the network into smaller subnets, each with its own set of addresses. This reduces the number of hosts on each network segment, reducing network congestion and improving network performance.
  2. Customized network topology: Subnetting allows for a more customized network topology, enabling administrators to design networks that better suit their specific needs. This can include creating subnets for different departments or teams within an organization, or for different types of network traffic.
  3. Improved security: By dividing a Class C network ID into subnets, administrators can improve network security by controlling access to specific resources within the network. For example, an administrator can configure a firewall to restrict access to certain subnets based on IP addresses, preventing unauthorized access to sensitive data.
  4. Flexibility: Subnetting allows for greater flexibility in managing IP addresses, as administrators can allocate addresses more efficiently by subnetting the network. This helps to prevent address exhaustion and makes it easier to manage IP address allocations across the network.
  5. Increased complexity: Subnetting a Class C network ID can also increase network complexity, as it requires additional network configuration and management. Administrators need to ensure that routing tables are updated to reflect the new network topology, and that all devices are configured to use the correct subnet masks.

Overall, subnetting a Class C network ID provides many benefits, including increased network capacity, customized network topology, improved security, flexibility, and greater efficiency in managing IP addresses. However, it also requires additional configuration and management, and can increase network complexity. When you configure the TCP/IP protocol on a computer, an IP address, subnet mask, and a default gateway are required in the TCP/IP configuration settings. To configure TCP/IP correctly, it is necessary to understand how TCP/IP networks are addressed and divided into networks and subnetworks.

1) This is a Class C network ID that has not been subnetted. You can represent this in binary as
11000000.10101000.00000001.00000000
11111111.11111111.11111111.00000000
Each bit in the IP address has a corresponding bit in the subnet mask. Those bits that correspond to the '1' in the subnet mask are considered part of the network ID.

2) This is a Class C network ID that has been subnetted. Two bits have been borrowed from the host ID of the default C network ID. This allows for a total possible number of four subnets (22) and 62 hosts per subnet (26-2).

3) This is a Class C network ID that has been subnetted. Four bits have been borrowed from the host ID of the default C network ID. This allows for a total possible number of 16 subnets (24) and 14 hosts per subnet (24-2).