Cisco SR224T Administration Guide - Page 41

Managing System Files DHCP Auto Configuration 4 • If the configuration filename was supplied by the DHCP server, then the copy protocol (TFTP) is selected as described in DHCP Auto Configuration. • If a configuration filename was not supplied by the DHCP server, the backup configuration file name is used. • If the configuration filename was not supplied by the DHCP server and the backup configuration file name is empty, the Auto Configuration process is halted. • The TFTP server is accessed to download the file from it. The download process is done only if the new configuration filename is different from the current configuration filename (even if the current configuration file is empty). • A SYSLOG message is generated acknowledging that the Auto Configuration process is completed. Configuring DHCP Auto Configuration The DHCP Auto Configuration page is used to perform the following actions when the information is not provided in a DHCP message: • Enable DHCP auto configuration feature. • Specify the download protocol. • Configure the switch to receive configuration information from a specific file on a specific server. Note the following regarding the DHCP auto configuration 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 ensure that the device configuration functions as intended, due to allocation of different IP addresses with each DHCP renew cycle, it is recommended that IP addresses 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. Cisco Small Business 200 Series Smart Switch Administration Guide 42