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IP Address Scope

When configuring a network, setting the IP Address Scope correctly is fundamental to ensuring the network operates efficiently and securely. This section of the configuration pertains to defining the range of IP addresses available for assignment to devices within your network. Understanding the options and implications of your choices will guide you in setting up an effective network infrastructure.

IP Address Scope​

The IP Address Scope determines which IP addresses are available for use within the network. This setting is crucial for proper network segmentation, management, and security.

  • Predefined Scopes: These are commonly used IP ranges that are reserved for private networks. They are not routable on the internet, which helps to secure internal network communications from external threats. The common predefined scopes are:

    • 172.16.0.0 - 172.31.255.255: This range is often used in large private networks due to its ample address space, suitable for enterprises with a significant number of devices.

    • 192.168.0.0 - 192.168.255.255: Ideal for smaller networks, like those typically found in homes or small businesses. It offers enough addresses for most small-scale applications without the complexity of managing a vast range of numbers.

    • 10.0.0.0 - 10.255.255.255: Provides the largest range of IP addresses, making it suitable for very large organizational networks that require a vast number of IP addresses.

  • Custom Scope: Allows for the specification of an IP range that does not fit into the standard private network ranges. This option can be used to create a highly customized network setting that aligns with specific operational requirements or to integrate with an existing network structure without causing conflicts.

Selecting the Correct Scope​

Choosing the right IP Address Scope is dependent on several factors:

  • Network Size and Hierarchy: Larger networks with numerous devices or segmented operations may require broader ranges or specific configurations that do not conflict with other networks in the organization.

  • Security Requirements: Certain scopes might be preferable based on security policies, such as limiting network exposure or segregating parts of the network for sensitive operations.

  • Operational Needs: Some networks might need specific configurations to support specialized services or applications that dictate particular IP range requirements.

Visual Guide for Selecting IP Address Scope​

When you access the IP Address Scope setting in your network configuration panel, you'll encounter options like this:

  1. Select from Predefined Ranges: Click on the dropdown menu to choose from the predefined scopes. These scopes are designed to accommodate a variety of network scales and uses.

  2. Custom Range: If your network requires a unique setup, select the 'Custom' option and specify the range according to your needs.

  3. CIDR Notation: For network segmentation and precise control, you can specify the CIDR notation (e.g., /24, /16) that determines the network's subnet size directly within the IP Scope setting.