Configuring an Ethernet interface

Configuring an Ethernet interface
3.1.7 This page will explain how an Ethernet interface can be configured from the console or a virtual terminal line.


Each Ethernet interface must have an IP address and subnet mask to route IP packets.

To configure an Ethernet interface follow these steps:

1. Enter global configuration mode.
2. Enter interface configuration mode.
3. Specify the interface address and subnet mask.
4. Enable the interface.

By default, interfaces are turned off, or disabled. To turn on or enable an interface, the command no shutdown is entered. If an interface needs to be disabled for maintenance or troubleshooting, use the shutdown command to turn off the interface.

This page concludes this lesson. The next lesson will explain how a configuration is finalized. The first page covers the importance of configuration standards.