The "First-Time Startup" chapter described how to get your router started for the first time using the setup command facility. This chapter describes the following tasks:
You can use the setup command facility after first-time startup to make basic configuration changes at any time. The changes you make affect only the changed elements in current running memory and in 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. The default values shown in brackets are the values last set using the setup command facility or using the configure command. Refer to the "Preparing for First-Time Startup" chapter for complete descriptions of the values you can enter during the setup command facility dialog.
The streamlined setup command facility is available only if your router is running from ROM monitor and has RXBOOT ROMs installed. The following routers can have this type of ROM installed:
The streamlined setup command facility permits your router to load a system image from a network server when there are problems with the startup configuration. The Cisco IOS software automatically puts you in the streamlined setup command facility when your router is accidentally or intentionally rebooted (or you are attempting to load a system image from a network server) after any of the following circumstances:
The streamlined setup command facility differs 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.
--- 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:
220.127.116.11Number of bits in subnet field :
5Class C network is 18.104.22.168, 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:
22.214.171.124Number of bits in subnet field : Class C network is 126.96.36.199, 5 subnet bits; mask is 255.255.255.248
The system then displays the command script that was created as a result of your configuring the router through the streamlined setup command facility.
The configuration information you provide on this screen is temporary and exists only so that you can proceed with booting your system. When you reload the system, your original configuration is left intact. If your startup configuration is corrupted, enter the setup command facility, and configure the basic parameters. Then issue the copy running-config startup-config command to write this configuration to NVRAM. Refer to the Router Products Configuration Guide for further details.
After you establish the basic startup configuration for your router, refer to the Router Products Configuration Guide or the Router Products Command Reference publication for information on using the configure command to make advanced configuration changes.
The configuration guide also provides information about the following tasks:
For additional information, refer to the following sources: