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Auto Image and Configuration Update 399
What Are the Dependencies for DHCP Auto Configuration?
The Auto Configuration process from TFTP servers depends upon the
following network services:
• A DHCP server must be configured on the network with appropriate
services.
• An image file and a text file containing the image file name for the switch
must be available from a TFTP server if DHCP image download is desired.
• A configuration file (either from bootfile (or) option 67 option) for the
switch must be available from a TFTP server.
• The switch must be connected to the network and have a Layer 3 interface
that is in an UP state.
• A DNS server must contain an IP address to hostname mapping for the
TFTP server if the DHCP server response identifies the TFTP server by
name.
• A DNS server must contain an IP address to hostname mapping for the
switch if a <
hostname>.cfg
file is to be downloaded.
• If a default gateway is needed to forward TFTP requests, an IP helper
address for TFTP needs to be configured on the default gateway.