When configuring a router, certain basic tasks are performed including:
- Naming the router
- Setting passwords
- Configuring interfaces
- Configuring a banner
- Saving changes on a router
- Verifying basic configuration and router operations
/* Router Interface Configuration */
You will now configure the individual router interfaces with IP addresses and other information. First, enter the interface configuration mode by specifying the interface type and number.
/* Verifying Basic Router Configuration */R1#show running-config
Now that the basic configuration commands have been entered, it is important to save the running-config to the nonvolatile memory, the NVRAM of the router. That way, in case of a power outage or an accidental reload, the router will be able to boot with the current configuration. After the router's configuration has been completed and tested, it is important to save the running-config to the startup-config as the permanent configuration file.
R1#copy running-config startup-config
After applying and saving the basic configuration, you can use several commands to verify that you have correctly configured the router. Click the appropriate button in the figure to see a listing of each command's output. All of these commands are discussed in detail in later chapters. For now, begin to become familiar with the output.
R1#show running-config
This command displays the current running configuration that is stored in RAM. With a few exceptions, all configuration commands that were used will be entered into the running-config and implemented immediately by the IOS.
R1#show startup-config
This command displays the startup configuration file stored in NVRAM. This is the configuration that the router will use on the next reboot. This configuration does not change unless the current running configuration is saved to NVRAM with the copy running-config startup-config command. Notice in the figure that the startup configuration and the running configuration are identical. They are identical because the running configuration has not changed since the last time it was saved. Also notice that the show startup-config command also displays how many bytes of NVRAM the saved configuration is using.
R1#show ip route
This command displays the routing table that the IOS is currently using to choose the best path to its destination networks. At this point, R1 only has routes for its directly connected networks via its own interfaces.
R1#show interfaces
This command displays all of the interface configuration parameters and statistics. Some of this information is discussed later in the curriculum and in CCNP.
R1#show ip interface brief
This command displays abbreviated interface configuration information, including IP address and interface status. This command is a useful tool for troubleshooting and a quick way to determine the status of all router interfaces.
For Download file (basic router configuration.pka) :
by Click this Link --> Basic Router Configuration.pka
For Download file (configure and Verify R1.pka) :
by Click this Link --> Configure and Verify.pka
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