nmcli-connection:tldr:3c624

This command is using the nmcli utility to add a new network connection.

Explanation of each part of the command:

• nmcli connection add: This specifies the nmcli command to add a new connection.
• ifname ${interface_name}: This specifies the interface name, which is a placeholder and should be replaced with the desired name of the network interface. For example, if the interface is "eth0", you would replace ${interface_name} with eth0.
• type ${ethernet}: This specifies the type of connection, which is Ethernet in this case. The ${ethernet} is a placeholder and must be replaced with the actual type, e.g., ethernet.
• ip6 ${2001:db8::2-64}: This sets the IPv6 address for the connection. ${2001:db8::2-64} is a placeholder and should be replaced with the desired IPv6 address range. In this example, it is set to 2001:db8::2-64.
• gw6 ${2001:db8::1}: This sets the IPv6 gateway for the connection. ${2001:db8::1} is a placeholder and should be replaced with the desired IPv6 gateway address. In this example, it is set to 2001:db8::1.
• ipv6.dns ${2001:db8::1}: This sets the DNS server for IPv6. ${2001:db8::1} is a placeholder and should be replaced with the desired IPv6 DNS server address. In this example, it is set to 2001:db8::1.
• ipv4.method ${ignore}: This specifies the method for IPv4 configuration. In this case, it is set to ${ignore}, which means the IPv4 configuration will be ignored. ${ignore} is a placeholder and can be replaced with other values like auto, manual, or disabled, depending on the desired configuration.