Specifications

2-12
System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches
Chapter 2 Assigning the Switch IP Address and Default Gateway
Assigning Switch Information
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.
If your DHCP server is a Cisco device, see the IP Addressing: DHCP Configuration Guide, Cisco IOS
Release 15M&T for additional information about configuring DHCP.
This section includes the following topics:
• Configuring DHCP Autoconfiguration (Only Configuration File), page 2-12
• Configuring DHCP Auto-Image Update (Configuration File and Image), page 2-13
• Configuring the Client, page 2-14
Configuring DHCP Autoconfiguration (Only Configuration File)
Follow this procedure to configure DHCP autoconfiguration of the TFTP and DHCP settings on a new
switch to download a new configuration file.
BEFORE YOU BEGIN
Review the “Prerequisites” section on page 2-9 and “Guidelines and Limitations” section on page 2-9.
DETAILED STEPS
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
ip dhcp pool 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.