Cisco Systems 12410, 12010, 12810 manual Configuring Host Name

Chapter 4 System Startup and Basic System Configuration

Cisco IOS User Interface

Configuring Host Name

The host name you configure your router with must:

•Follow the rules for ARPANET host names.

•Start with a letter, end with a letter or digit, and have as interior characters only letters, digits, and hyphens.

•Consist of 63 or fewer characters.

For more information, refer to RFC 1035, “Domain Names—Implementation and Specifications.”

Uppercase and lowercase characters look the same to many internet software applications, so do not expect case to be preserved. It may seem appropriate to capitalize a name the same way you might do when writing, but names must appear as all lowercase. For more information, see RFC 1178, “Choosing a Name for Your Computer.”

Configuring Passwords

The commands available at the user EXEC level are a subset of those available at the privileged EXEC level. Because many privileged EXEC commands are used to set system parameters, you should password-protect these commands to prevent their unauthorized use. For information on how to establish password protection or configure privilege levels, refer to the “Configuring Passwords and Privileges” chapter in the Security Configuration Guide.

The enable secret password functionality is available for Cisco 12000 series Gigabit switch routers. To gain access to privileged-level commands, you must enter the correct password. Depending on your boot ROM level, you can use enable password while in ROM monitor mode.

For maximum security, enable secret and enable password settings should be different. If you use the same password during the setup process, the system accepts it but issues a warning to enter a different password.

•An enable secret password can contain from 1 to 25 uppercase and lowercase alphanumeric characters.

•An enable password can contain any number of uppercase and lowercase alphanumeric characters.

	Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01		4-23