Cisco 300 Series Cli Manual page 887

Small business 300 series managed switches command line interface guide release 1.3

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Table of Contents

DHCP Server Commands

78-21075-01 Command Line Interface Reference Guide

Command Mode

DHCP Pool Host Configuration mode

DHCP Pool Network Configuration mode

User Guidelines

DHCP provides a framework for passing configuration information to hosts on a

TCP/IP network. Configuration parameters and other control information are

carried in tagged data items that are stored in the DHCP message options field.

The data items themselves are also called options. The current set of DHCP

options are documented in RFC 2131,

For options in hexadecimal format, the string parameter should include all the

bytes in the option value, including leading zeros.

Example 1 - The following example configures DHCP option 19, which specifies

whether the client should configure its IP layer for packet forwarding. A value of 0

means disable Ip forwarding. A value of 1 means enable IP forwarding. IP

forwarding is enabled in the following example.

Console(config-dhcp)#

Example 2 - The following example configures DHCP option 2, which specifies the

offset of the client's subnet in seconds from Coordinated Universal Time (UTC). A

value of 0xE10 in the following example indicates a location 1 hour east of the

Console(config-dhcp)#

The following example configures DHCP option 72, which specifies the World

Wide Web servers for DHCP clients. World Wide Web servers 172.16.3.252 and

172.16.3.253 are configured in the following example.

Console(config-dhcp)#

...]—Specifies a list of one or more IP addresses.

Dynamic Host Configuration Protocol

option 19 hex

option 2 hex

72 172.16.3.252 172.16.3.253

option ip-list