Setting Dhcp Auto Configuration - Cisco 200 Series Administration Manual
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- User manual (428 pages) ,
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Managing System Files
Setting DHCP Auto Configuration
Setting DHCP Auto Configuration
NOTE
Cisco Small Business 200 Series Smart Switch Administration Guide
Dynamic Host Configuration Protocol (DHCP) provides a means of passing
configuration information (including the IP address of a TFTP server and a
configuration file name) to hosts on a TCP/IP network. By default, the switch is
enabled as a DHCP client.
When the IP address is allocated or renewed, such as during a reboot or upon an
explicit DHCP renewal request and if the switch and the server are configured to
do so, the switch transfers a configuration file from the TFTP server identified to
the switch by DHCP. This process is known as auto configuration.
If you enable DHCP Auto Configuration on a switch with DHCP disabled, you must
enable the DHCP by using the procedure is described in the
section.
DHCP Auto Configuration Page
The
information pointing to a TFTP server for auto configuration purposes or manual
configuration of the TFTP server and configuration file in the event that the
information is not provided in a DHCP message.
Note the following limitations regarding the DHCP auto-update process:
•
A configuration file that is placed on the TFTP server must match the form
and format requirements of a supported configuration file. The form and
format of the file are checked, but the validity of the configuration
parameters is not checked prior to loading it to the Startup Configuration.
•
To make sure the configuration of devices functions as intended and due to
allocation of different IP addresses with each DHCP renew cycle, IP
addresses must be bound to MAC addresses in the DHCP server table. This
ensures that each device has its own reserved IP address and other
relevant information.
configures the switch to receive DHCP
4
IP Addressing
40
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