Configuring Dhcp Auto-Image Update (Configuration File And Image) - Cisco Catalyst 3750-X Software Configuration Manual

Assigning Switch Information
Command
Step 4
network network-number mask
prefix-length
Step 5 default-router address
Step 6
option 150 address
Step 7
exit
Step 8 tftp-server flash:filename.text
Step 9 interface interface-id
Step 10
no switchport
Step 11
ip address address mask
Step 12
end
Step 13 copy running-config startup-config
This example shows how to configure a switch as a DHCP server so that it will download a configura-
tion 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
Switch(dhcp-config)# default-router 10.10.10.1
Switch(dhcp-config)# option 150 10.10.10.1
Switch(dhcp-config)# exit
Switch(config)# tftp-server flash:config-boot.text
Switch(config)# interface gigabitethernet1/0/4
Switch(config-if)# no switchport
Switch(config-if)# ip address 10.10.10.1 255.255.255.0
Switch(config-if)# end

Configuring DHCP Auto-Image Update (Configuration File and Image)

Beginning in privileged EXEC mode, follow these steps to configure DHCP autoconfiguration to
configure TFTP and DHCP settings on a new switch to download a new image and a new configuration
file.
Before following the steps in this table, you must create a text file (for example, autoinstall_dhcp) that
Note
will be uploaded to the switch. In the text file, put the name of the image that you want to download (for
example, 3750x-ipservices-mz.122-53.3.SE2.tar). This image must be a tar and not a bin file.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
3-12
Chapter 3 Assigning the Switch IP Address and Default Gateway
Purpose
Specify the subnet network number and mask of the DHCP address
pool.
The prefix length specifies the number of bits that comprise
Note
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 (/).
Specify the IP address of the default router for a DHCP client.
Specify the IP address of the TFTP server.
Return to global configuration mode.
Specify the configuration file on the TFTP server.
Specify the address of the client that will receive the configuration
file.
Put the interface into Layer 3 mode.
Specify the IP address and mask for the interface.
Return to privileged EXEC mode.
(Optional) Save your entries in the configuration file.
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