Configuring network interfaces with IPv4 and IPv6

There are several approaches to configuring network interfaces and several network configurations. These will help us determine what we need to do and the required parameters and settings.

Let’s look at some examples:

• A server might have two or more Network Interface Cards (NICs) for redundancy, but only one of them is active at a time.
• A server might use a trunk network and require that we define VLANs on top for accessing or providing the different services in the networks.
• Two or more NICS can be combined to provide increased output and redundancy via teaming.

Configuration can be performed in several ways, too:

• nmtui: A text-based interface for configuring a network
• nmcli: The command-line interface for NetworkManager
• nm-connection-editor: The graphical tool available for graphical environments
• Using text configuration files

Important Note

Before editing your network...