HP Configuring the TFTP client

Table 10 Configuration when the device serves as the TFTP client

Device	Configuration	Remarks
	• Configure the IP address and routing function, and
	ensure that the route between the device and the TFTP
Device (TFTP client)	server is available.	—
	• Use the tftp command to establish a connection to the
	remote TFTP server to upload/download files to/from
	the TFTP server
PC (TFTP server)	Enable TFTP server on the PC, and configure the TFTP	—
	working directory.

Configuring the TFTP client

When a device acts as a TFTP client, you can upload a file on the device to a TFTP server or download a file from the TFTP server to the local device. You can use either of the following methods to download a file:

•Normal download: The device writes the obtained file to the storage medium directly. In this way, if you download a remote file using a filename destination-filenamethat exists in the directory, the device deletes the original file and then saves the new one. If file download fails due to network disconnection or other reasons, the original system file will never recover because it has been deleted.

•Secure download: The device saves the obtained file to its memory and does not write it to the storage medium until the whole file is obtained. If you download a remote file using a filename destination-filenamethat exists in the directory, the original file is not overwritten. If file download fails due to network disconnection or other reasons, the original file still exists. This mode is more secure but consumes more memory.

HP recommends that you use the secure mode or, if you use the normal mode, specify a filename not existing in the current directory as the target filename when downloading the system software image file or the startup configuration file.

Before using the tftp command to establish a TFTP connection, you can perform source address binding. Source address binding means configuring an IP address on a stable interface such as a loopback interface, and then using this IP address as the source IP address of a TFTP connection. The source address binding function simplifies the configuration of ACL rules and security policies. You only need to specify the source or destination address argument in an ACL rule as the address to filter inbound and outbound packets on the device, ignoring the difference between interface IP addresses as well as the effect of interface statuses. You can configure the source address by configuring the source interface or source IP address. The primary IP address configured on the source interface is the source address of the transmitted packets.

Follow these steps to configure the TFTP client:

To do…	Use the command…	Remarks
Enter system view	system-view	—
		Optional
Use an ACL to control the device’s	tftp-server [ ipv6 ] acl acl-number	By default, no ACL is used to
access to TFTP servers		control the device’s access to
		TFTP servers.
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