Dell POWEREDGE M1000E User Manual

Page 95

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide

OL-13270-03

Chapter 3 Assigning the Switch IP Address and Default Gateway

Assigning Switch Information

It reads its host table by indexing its IP address 10.0.0.21 to its hostname (switcha).

It reads the configuration file that corresponds to its hostname; for example, it reads switch1-confg
from the TFTP server.

Switches B through D retrieve their configuration files and IP addresses in the same way.

Configuring the DHCP Auto Configuration and Image Update Features

Using DHCP to download a new image and a new configuration to a switch requires that you configure
at least two switches: One switch acts as a DHCP and TFTP server. The client switch is configured to
download either a new configuration file or a new configuration file and a new image file.

Configuring DHCP Autoconfiguration (Only Configuration File)

Beginning in privileged EXEC mode, follow these steps to configure DHCP autoconfiguration of the
TFTP and DHCP settings on a new switch to download a new configuration file.

This example shows how to configure a switch as a DHCP server so that it downloads a configuration
file:

Switch# configure terminal

Switch(config)# ip dhcp pool pool1

Switch(dhcp-config)# network 10.10.10.0 255.255.255.0

Switch(dhcp-config)# bootfile config-boot.text

Command

Purpose

Step 1

configure terminal

Enter global configuration mode.

Step 2

ip dhcp poolname

Create a name for the DHCP Server address pool, and enter DHCP
pool configuration mode.

Step 3

bootfile filename

Specify the name of the configuration file that is used as a boot image.

Step 4

network network-number mask
prefix-length

Specify the subnet network number and mask of the DHCP address
pool.

Note

The prefix length specifies the number of bits that comprise
the address prefix. The prefix is an alternative way of
specifying the network mask of the client. The prefix length
must be preceded by a forward slash (/).

Step 5

default-router address

Specify the IP address of the default router for a DHCP client.

Step 6

option 150 address

Specify the IP address of the TFTP server.

Step 7

exit

Return to global configuration mode.

Step 8

tftp-server flash:filename.text

Specify the configuration file on the TFTP server.

Step 9

interface interface-id

Specify the address of the client that will receive the configuration
file.

Step 10

no switchport

Put the interface into Layer 3 mode.

Step 11

ip address address mask

Specify the IP address and mask for the interface.

Step 12

end

Return to privileged EXEC mode.

Step 13

copy running-config startup-config

(Optional) Save your entries in the configuration file.

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