Cisco 4000 Series User Manual

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Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
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Chapter 4 Configure Initial Router Settings on Cisco 4000 Series ISRs
Verify Initial Configuration on Cisco 4000 Series ISRs
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Note To avoid losing work you have completed, be sure to save your configuration occasionally as you
proceed. Use the copy running-config startup-config command to save the configuration to
NVRAM.
Verify Initial Configuration on Cisco 4000 Series ISRs
Enter the following commands at Cisco IOS-XE to verify the initial configuration on the router:
• show version—Displays the system hardware version; the installed software version; the names and
sources of configuration files; the boot images; and the amount of installed DRAM, NVRAM, and
flash memory.
• show diag—Lists and displays diagnostic information about the installed controllers, interface
processors, and port adapters.
• show interfaces— Shows interfaces are operating correctly and that the interfaces and line protocol
are in the correct state; either up or down.
• show ip interface brief— Displays a summary status of the interfaces configured for IP protocol.
• show configuration— Verifies that you have configured the correct hostname and password.
• show platform— Displays the software/rommon version, and so on.
When you have completed and verified the initial configuration, specific features and functions are ready
to be configured. See the Software Configuration Guide for the Cisco 4400 and Cisco 4300 Series ISRs.
ROM Monitor Overview and Basic Procedures
The ROM Monitor is a bootstrap program that initializes the hardware and boots the
Cisco IOS XE software when you power on or reload a router. When you connect a terminal to the router
that is in ROM Monitor mode, the ROM Monitor command-line interface (CLI) prompt is displayed.
During normal operation, users do not use ROM Monitor mode. ROM Monitor mode is used only in
special circumstances, such as reinstalling the entire software set, resetting the router password, or
specifying a configuration file to use at startup.
The ROM Monitor software is known by different names. It is sometimes called ROMMON because of
the CLI prompt in ROM Monitor mode. It is also called the boot software, boot image, or boot helper.
Although it is distributed with the routers that use the Cisco IOS XE software, the ROM Monitor

Cisco 4000 Series Specifications

General

Brand	Cisco
Model	4000 Series
Category	Network Router
Language	English