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Configuring the Fast Ethernet Interfaces*
Configuring Interfaces—Descriptions and Examples
This section describes a basic configuration. Press the Return key after each step unless otherwise
noted. At any time you can exit the privileged level and return to the user level by entering disable
at the prompt as follows:
Following is a basic configuration procedure:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Following are descriptions and examples of the commands for configuring interface 3/0/0.
Descriptions are limited to fields that are relevant for establishing and verifying the configuration.
After configuring the new interface, use show commands to display the status of the new interface
or all interfaces, or to verify changes you have made.
Depending on the requirements for your system configuration and the protocols you plan to route on
the interface, you might also need to enter other configuration subcommands. For complete
descriptions of configuration subcommands and the configuration options available for interfaces,
refer to the publications listed in the section "If You Need More Information" on page 2.
30 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Router# disable
Router>
At the privileged-level prompt, enter configuration mode and specify that the console
terminal is the source of the configuration subcommands, as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
At the prompt, specify the first interface to configure by entering the subcommand
interface, followed by the type (fastethernet) and slot/port (interface processor slot
number/0). The example that follows is for the interface port of the first interface port, on
an FEIP in interface processor slot 1:
Router(config)# interface fa 1/0/0
If IP routing is enabled on the system, you can assign an IP address and subnet mask to
the interface with the ip address configuration subcommand, as in the following
example:
Router(config-int)# ip address 1.1.1.10 255.255.255.0
Add any additional configuration subcommands required to enable routing protocols and
set the interface characteristics.
Change the shutdown state to up and enable the interface as follows:
Router(config-int)# no shutdown
Configure additional interfaces as required.
When you have included all of the configuration subcommands to complete the
configuration, press Ctrl-Z to exit configuration mode.
Write the new configuration to nonvolatile memory as follows:
Router# copy running-config startup-config
[OK]
Router#
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