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Whether each interface is up or down on the Layer 2 level (protocol column) Whether each interface is up or down on the Layer 1 level (status column)

For example, this command will output the following information: To show the interfaces in a Cisco router, use the ‘show IP interface brief’ command in the console window. The rest of the instructions through this article will assume that you are connected to the Cisco router. Therefore, we need to verify the state of those interfaces before proceeding, especially if this router is being re-used. Typically, Cisco routers have all their interfaces shut down out of the box. How to Display Interfaces on a Cisco Deviceīefore you assign an IP address to a Cisco router, you need to know the current configuration of that device. You'll see a straightforward, four-step process to enabling interfaces that will equip you to do this yourself. Unlike switches, which are essentially plug and play, routers require a bit of configuration before they can do what they were designed to.

In this video, Jeremy Cioara covers assigning IP addresses and enabling interfaces on Cisco routers. An Overview of How to Configure IP Addresses on Cisco Devices We will walk through each of those steps, explain how to complete them, and why they are essential. Verify the current interface configuration of the routerĬhoose the interface that you want to assign an IP address to So, we will walk through how to configure an IP address on a Cisco router today.Ĭonfiguring a Cisco router with an IP address is not a complicated process. Before an enterprise-grade router can be installed in a network, it needs to have an IP address assigned to it first. In contrast, business-grade ISP services assign static IP addresses. Likewise, consumer-grade ISP services typically configure home ‘routers’ with a dynamic IP address. Consumer-grade routers come mostly configured out of the box. Enterprise-grade routers are very different from consumer-grade routers, though. Configuring routers is a routine operation for network administrators.