The DHCP server responds with an IP address for the device, a subnet mask, a default gateway, a Domain Name System (DNS) server address, and a TFTP server name or address. When a device boots, it queries a DHCP server for its network configuration information. This section describes the request process. The TFTP server can handle simultaneous requests for configuration files. Understanding How Devices Identify the TFTP Server.Understanding How Devices Access the TFTP Server.Understanding How Devices Use DHCP and Cisco TFTP.This section contains the following topics: This section describes the relationship among Cisco CallManager, TFTP, and Dynamic Configuration Protocol (DHCP) as well as the relationship between devices and the TFTP server. When you set the parameter to False, the TFTP server builds only. cnf format configuration files for devices. When you set the BuildCNFFlag service parameter to True, the TFTP server builds both. cnf.xml format, depending on the device type and your TFTP service parameter settings. Configuration files for gateways contain all their configuration information.Ĭonfiguration files may be in a. Configuration files for Cisco IP Phone 79 models also contain URLs for the phone buttons: messages, directories, services, and information. Cisco TFTP builds configuration files and serves embedded component executables, ringer files, and device configuration files.Ī configuration file contains a prioritized list of Cisco CallManagers for a device (telephones and gateways), the TCP port on which the device connects to those Cisco CallManagers, and an executable load identifier. The Cisco TFTP service builds and serves files consistent with the trivial file transfer protocol, which is a simplified version of the File Transfer Protocol (FTP). Understanding How Devices Identify the TFTP Server Understanding How Devices Access the TFTP Server Understanding How Devices Use DHCP and Cisco TFTP
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