Cisco Network Boot Installation and Configuration Guide, Release 2.1
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About This Guide

Table Of Contents

About This Guide




Command Syntax Conventions

Related Documentation

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center

About This Guide

This preface describes the objectives, audience, organization and command syntax conventions of the Cisco Network Boot Installation and Configuration Guide. It also provides information on how to obtain related documentation and technical assistance.


This software configuration guide describes how to install and configure Cisco Network Boot so that a diskless system on a Cisco SN 5400 Series system network can boot. It does not describe every possible configuration but does describe those tasks commonly required to configure the software.

Note This guide does not describe in detail how to set up and configure Cisco SN 5400 Series systems or Cisco iSCSI drivers. To set up the Cisco SN 5400 Series systems, refer to the Cisco SN 5400 Series system software configuration documentation.


This guide is intended primarily for the following audiences:

System administrators who are familiar with the specifics of Cisco storage routing products or the iSCSI protocol and know the fundamentals of internetworking and network storage devices.

System administrators who are responsible for configuring network storage equipment.

Support personnel with Microsoft Windows 2000 server and basic TCP/IP administration skills.

System administrators and support personnel with DHCP server skills.


This guide contains the following chapters (Table 1):

Table 1 Document Organization


Chapter 1

Product Overview

Describes what you should understand prior to installing and configuring Cisco Network Boot.

Chapter 2

Before Installing Cisco Network Boot

Describes what you need to do before you install and configure the Cisco Network Boot.

Chapter 3

Installing and Configuring for Cisco Network Boot Operation

Provides procedures for installing and configuring the iSCSI targets, the DHCP server, the Cisco SN 5400 Series system, and the hosts. In addition, it describes how to go through the replication process.

Chapter 4

Maintenance and Troubleshooting

Provides help in resolving problems.



Definition of terms.

Command Syntax Conventions

Table 2 describes the syntax used with the commands in this document.

Table 2 Syntax Conventions 

boldface font

Indicates commands and keywords that you enter literally as shown.

italic font

Indicates arguments for which you supply values.

[ x ]

Square brackets indicate an optional element (keyword or argument).

{ x }

Braces indicate a required element (keyword or argument).

{s | y | z}

Braces and vertical bars indicate a required choice of keywords or arguments, separated by the vertical bars within the braces.

[ x {y | z}]

Braces and vertical bars within square brackets indicate a required choice within an optional element.


The value entered for /bits specifies a network mask in classless interdomain routing (CIDR) style. That is, the value equals the number of bits in a network mask counting from the most significant side (left) of an IP address. For example, a /bits value of 24 is the equivalent of a network mask of Similarly, a /bits value of 32 specifies using the entire IP address.

"user text"

Indicates that user text (a user-defined text string) that contains a space or spaces must be enclosed using double or single quotes. If single quotes or an apostrophe is used as part of the text string, enclose the string using double quotes. If double quotes are used as part of the text string, enclose the string using single quotes.

For example, both "Pat's storage router" and `number "2"' are valid text string entries.

Note The question mark (?) character cannot be used as part of a text string.

screen font

Examples of information displayed on the screen.

boldface screen font

Examples of information you must enter.

< >

Nonprinting characters, for example, passwords appear in angle brackets.

[  ]

Default responses to system prompts appear in square brackets.

Note Means reader take note. Notes contain helpful suggestions or references to additional information and material.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.
Timesaver Means the described action saves time. You can save time by performing the action described in the paragraph.

Related Documentation

Refer to the following documents for additional information:

Cisco SN 5420 Storage Router Hardware Installation Guide

Cisco SN 5428 Storage Router Hardware Installation Guide

Cisco SN 5420 Storage Router Software Installation Guide, release 2.1 or later

Cisco SN 5428 Storage Router Software Installation Guide, release 2.3 or later

Release Notes for the Cisco SN 5420 Storage Router, release 2.1.2 or later

Release Notes for the Cisco SN 5428 Storage Router, release 2.3.1 or later

Release Notes for Cisco iSCSI Drivers, version 2.2.1 or later, for Microsoft Windows 2000

Readme and example configuration files for Cisco iSCSI drivers

Obtaining Documentation

These sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at this URL:

Translated documentation is available at this URL:

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.

Ordering Documentation

You can order Cisco documentation in these ways:

Registered users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

Registered users can order the Documentation CD-ROM through the online Subscription Store:

Nonregistered users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on In the Cisco Documentation home page, click the Fax or Email option in the "Leave Feedback" section at the bottom of the page.

You can e-mail your comments to

You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. registered users have complete access to the technical support resources on the Cisco TAC Web Site. is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world. is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you with these tasks:

Streamline business processes and improve productivity

Resolve technical issues with online support

Download and test software packages

Order Cisco learning materials and merchandise

Register for online skill assessment, training, and certification programs

If you want to obtain customized information and service, you can self-register on To access, go to this URL:

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Cisco TAC inquiries are categorized according to the urgency of the issue:

Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to this URL:

All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:

If you are a registered user, and you cannot resolve your technical issues by using the Cisco TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.