Question

How an interface is configured with the IPv6 address command?

Answer 1

To configure an IPv6 address on an interface, access the interface configuration mode on the network device, apply the 'ipv6 address' command with the desired IPv6 address, enable IPv6 routing if necessary, and save the configuration.

Step-by-step explanation:

To configure an interface with an IPv6 address, certain commands must be used within a network device's configuration mode. Generally, this process is done on routers or switches that support IPv6. Here's a step-by-step guide to configuring a typical interface:

1. Access the device's command-line interface (CLI).
2. Enter into global configuration mode by typing configure terminal or another variant specific to the operating system.
3. Access the interface you want to configure, for example, by typing interface GigabitEthernet0/0.
4. Assign the IPv6 address to the interface using the command ipv6 address followed by the IPv6 address and prefix length, for instance, ipv6 address 2001:DB8::1/64.
5. Enable IPv6 routing on the device if necessary, which is usually done with the command ipv6 unicast-routing, if it has not been enabled already.
6. Exit configuration mode by typing end or using the Ctrl+Z shortcut.
7. Save the configuration to the device's startup configuration file, using the command write memory or copy running-config startup-config.

These steps will apply the IPv6 configuration to the specified interface, allowing it to communicate using IPv6.