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The chapter "First-Time Startup" described how to get your router started for the first time using the setup command facility. This chapter describes the following tasks:
For information about using the EXEC command interpreter, refer to the Router Products Configuration Guide. For information about specific commands, refer to the Router Products Command Reference publication.
The setup command facility can be used after first-time startup to make basic changes at any time. The changes you make will affect only the changed elements in current running memory and in nonvolatile memory (NVRAM).
When you enter the setup command facility after first-time startup, you must run through the entire dialog until you come to the element you intend to change. When you use the setup command facility after first-time startup, the default values indicated within the brackets in the System Configuration Dialog are the values last set using the setup command facility, were left as defaults, or were supplied using the configure command. If you do not want to make the change while still in the System Configuration Dialog, press Ctrl-C to return to the privileged EXEC prompt.
Refer to the chapter, "Preparing for First-Time Startup," for complete descriptions of the values you can assign each item within the dialog.
The streamlined setup command facility permits your router to netboot an image even though there may be problems with the configuration in NVRAM. The streamlined setup command facility is available only if your router is running from ROM monitor and it has RXBOOT ROMs installed. The following routers can have this type of ROM installed:
The streamlined setup command facility is different from the standard setup command facility in that the streamlined facility does not ask you to configure global router parameters. You are prompted only to configure interface parameters, which permit your router to boot.
The router enters the streamlined setup command facility if, after any of the following circumstances occurs, your router is accidentally or intentionally rebooted (or you are attempting to netboot):
The following example shows a router entering the streamlined setup command facility because the router is being netbooted and it does not have a valid image in NVRAM:
--- System Configuration Dialog ---
Refer to the 'Getting Started' Guide for additional help.
Default settings are in square brackets '[]'.
Configuring interface IP parameters for netbooting:
Configuring interface Ethernet0:
Is this interface in use? [yes]:
Configure IP on this interface? [yes]:
IP address for this interface: 192.195.78.50
Number of bits in subnet field [0]: 5
Class C network is 192.195.78.0, 5 subnet bits; mask is 255.255.255.248
Configuring interface Serial0:
Is this interface in use? [yes]:
Configure IP on this interface? [yes]:
IP address for this interface: 192.195.78.34
Number of bits in subnet field [5]:
Class C network is 192.195.78.0, 5 subnet bits; mask is 255.255.255.248
The system then displays the command script that was created as a result of you configuring the router through the streamlined setup command facility.
You will be asked to provide an IP address and subnet mask bits. You can enter the subnet mask bits as a decimal value such as 8.
The configuration information you provide at this screen is temporary and is only to allow you to proceed with booting your system. When you reload the system, your original configuration is left intact. If your image in NVRAM is corrupted, enter the setup command facility, configure the basic parameters, then issue the write memory command to write this configuration to NVRAM. Refer to the Router Products Configuration Guide for further details.
You can review the changes you have made to the configuration. To display information stored in NVRAM, use the EXEC command show configuration. To make changes, use the configure command, as described in the Router Products Configuration Guide.
After having provided the basic startup configuration for your router, refer to the Router Products Configuration Guide for information about using the configure command to make advanced configuration changes.
The configuration guide also provides information about the following tasks:
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