6.8.1: Skills Integration Challenge-Planning Subnets and
Configuring IP Addresses
You (the network administrator) decide what subnet you need to use, depending on the available IP addresses, and how you want to divide your network into subnets (in case you use subnets).You (the network administrator) decide what subnet you need to use, depending on the available IP addresses, and how you want to divide your network into subnets (in case you use subnets).You (the network administrator) decide what subnet you need to use, depending on the available IP addresses, and how you want to divide your network into subnets (in case you use subnets).You (the network administrator) decide what subnet you need to use, depending on the available IP addresses, and how you want to divide your network into subnets (in case you use subnets).
This process is known as subnetting. An Internet Service Provider (ISP) takes a large block of IP addresses and divides it into smaller subnets to efficiently allocate resources and manage network traffic. By assigning these smaller subnets to individual customers, the ISP can optimize the use of IP addresses while ensuring each customer has sufficient connectivity. This method enhances network organization and improves overall performance.
It means that a larger network has been divided into smaller networks, called "subnets". Each subnet has its own range of IP addresses, that should not overlap with the other subnets.It means that a larger network has been divided into smaller networks, called "subnets". Each subnet has its own range of IP addresses, that should not overlap with the other subnets.It means that a larger network has been divided into smaller networks, called "subnets". Each subnet has its own range of IP addresses, that should not overlap with the other subnets.It means that a larger network has been divided into smaller networks, called "subnets". Each subnet has its own range of IP addresses, that should not overlap with the other subnets.
To create 8 subnets for the IP address 192.168.1.0, you need to use subnetting. Since 8 subnets require 3 additional bits (as 2^3 = 8), you can take 3 bits from the host part of the default subnet mask (255.255.255.0 or /24). This will change the subnet mask to 255.255.255.224 (/27), allowing for 8 subnets, each with 30 usable host addresses (2^5 - 2 = 30). The resulting subnets will range from 192.168.1.0 to 192.168.1.224.
A class A would give you the most flexibility in terms of subnets and hosts per subnet. You could use up to 23 bits of information for subnets.
Planning and documenting IPv4 addresses helps ensure efficient use of IP address space, preventing conflicts and overlap in a network. It aids in troubleshooting by providing a clear reference for network configurations and device assignments. Additionally, proper documentation facilitates scalability and future growth, allowing for easier integration of new devices or subnets as network demands evolve.
To divide subnets, network engineers typically use a router or a layer 3 switch. These devices can interpret IP addresses and manage traffic between different subnets by routing packets accordingly. Additionally, subnetting can be configured within the device's settings, allowing for efficient management of IP address allocation and enhancing network performance.
To create 6 subnets from the IP address 172.16.0.0, you need to determine how many bits to borrow from the host portion of the address. Since 2^3 = 8, borrowing 3 bits allows for 8 subnets, which is sufficient for your requirement of 6. This results in a subnet mask of 255.255.248.0 (or /21), providing each subnet with 2046 usable host addresses. The subnets would range from 172.16.0.0/21 to 172.16.7.0/21.
To implement subnetting, first determine the network's requirements, including the number of subnets and hosts per subnet. Next, choose a suitable subnet mask that allows for the desired number of subnets and hosts by calculating the available bits in the IP address. Divide the IP address space into subnets based on the selected mask, ensuring that each subnet has a unique network address. Finally, configure the devices on the network to recognize the new subnets by updating their IP addresses and subnet masks accordingly.
A fixed-length subnet, also known as fixed-length subnet masking (FLSM), is a method of subnetting where all subnets created from a given network have the same size and number of host addresses. This approach simplifies routing and network management since each subnet is uniform in size, making it easier to allocate IP addresses. However, it can lead to inefficient use of IP addresses if some subnets have fewer hosts than needed, as they may waste available address space.
An area of a network that shares a common address component. On TCP/IP networks, subnets are defined as all devices whose IP Addresses have the same prefix. Dividing a network into subnets is useful for both security and performance reasons. IP networks are divided using a subnet mask.
Subnets are created in powers of 2 due to the way netmasks work. To accomodate 10 addresses, you would need a /28 (255.255.255.240) netmask, which would provide 14 usable IP addresses. Here are the details of that mask in a private network address area (192.168.x.x) Output from the unix "ipcalc" program: Address: 192.168.1.0 11000000.10101000.00000001.0000 0000 Netmask: 255.255.255.240 = 28 11111111.11111111.11111111.1111 0000 Wildcard: 0.0.0.15 00000000.00000000.00000000.0000 1111 => Network: 192.168.1.0/28 11000000.10101000.00000001.0000 0000 HostMin: 192.168.1.1 11000000.10101000.00000001.0000 0001 HostMax: 192.168.1.14 11000000.10101000.00000001.0000 1110 Broadcast: 192.168.1.15 11000000.10101000.00000001.0000 1111 Hosts/Net: 14 Class C, Private Internet With the /28 netmask, 192.168.1.0 is the network address, and unusable. 192.168.1.15 is the broadcast address, and is also non-assignable. This gives 14 usable addresses. A /29 netmask (one bit less) gives 6 usable addresses. To create 10 subnets, the size of the subnets would need to be known, and the process is similar, but the subnets would have different start and end addresses.