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Table 10 Configuration when the device serves as the TFTP client
Device Configuration Remarks
Device (TFTP client)
• Configure the IP address and routing function, and
ensure that the route between the device and the TFTP
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-filename that 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-filename that 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 —
Use an ACL to control the device’s
access to TFTP servers
tftp-server [ ipv6 ] acl acl-number
Optional
By default, no ACL is used to
control the device’s access to
TFTP servers.
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