Main index | Section 1 | 日本語 | Options |
amp;? command-name ... | |
Print help information.
| |
ascii |
Shorthand for "mode ascii"
|
binary |
Shorthand for "mode binary"
|
blocksize [size] | |
Sets the TFTP blksize option in TFTP Read Request or Write Request packets
to
[size]
as specified in RFC 2348.
Valid values are between 8 and 65464.
If no blocksize is specified, then by default a blocksize of 512 bytes
will be used.
| |
blocksize2 [size] | |
Sets the TFTP blksize2 option in TFTP Read Request or Write Request packets
to
[size].
Values are restricted to powers of 2 between 8 and 32768.
This is a non-standard TFTP option.
| |
connect host [port] | |
Set the
host
(and optionally
port)
for transfers.
Note that the
TFTP
protocol, unlike the
FTP
protocol,
does not maintain connections between transfers; thus, the
connect
command does not actually create a connection,
but merely remembers what host is to be used for transfers.
You do not have to use the
connect
command; the remote host can be specified as part of the
get
or
put
commands.
| |
debug level | |
Enable or disable debugging levels during verbose output.
The value of
level
can be one of
packet, simple, options,
or
access.
| |
get [host : ]file [localname]
get | |
[host1 : ]file1
[host2 : ]file2 ...
[hostN : ]fileN
Get one or more files from the remote host.
When using the
host
argument, the
host
will be used as default host for future transfers.
If
localname
is specified, the file is stored locally as
localname,
otherwise the original filename is used.
Note that it is not possible to download two files at a time, only
one, three, or more than three files, at a time.
To specify an IPv6 numeric address for a host, wrap it using square brackets like "[3ffe:2900:e00c:ffee::1234]:file" to disambiguate the colons used in the IPv6 address from the colon separating the host and the filename.
| |
mode transfer-mode | |
Set the mode for transfers;
transfer-mode
may be one of
ascii
or
binary.
The default is
binary.
| |
packetdrop [arg] | |
Randomly drop
arg
out of 100 packets during a transfer.
This is a debugging feature.
| |
put file [[host : ]remotename]
put file1 file2 ... fileN [[host : ]remote-directory] | |
Put a file or set of files to the remote host.
When
remotename
is specified, the file is stored remotely as
remotename,
otherwise the original filename is used.
If the
remote-directory
argument is used, the remote host is assumed to be a
Unix
machine.
To specify an IPv6 numeric address for a
host,
see the example under the
get
command.
| |
options [arg] | |
Enable or disable support for TFTP options.
The valid values of
arg
are
on
(enable RFC 2347 options),
off
(disable RFC 2347 options), and
extra
(toggle support for non-RFC defined options).
| |
quit |
Exit
tftp.
An end of file also exits.
|
rexmt retransmission-timeout | |
Set the per-packet retransmission timeout, in seconds.
| |
rollover [arg] | |
Specify the rollover option in TFTP Read Request or Write
Request packets.
After 65535 packets have been transmitted, set the block counter to
arg.
Valid values of
arg
are 0 and 1. This is a non-standard TFTP option.
| |
status |
Show current status.
|
timeout total-transmission-timeout | |
Set the total transmission timeout, in seconds.
| |
trace |
Toggle packet tracing.
|
verbose | |
Toggle verbose mode.
| |
windowsize [size] | |
Sets the TFTP windowsize option in TFTP Read Request or Write Request packets to [size] blocks as specified in RFC 7440. Valid values are between 1 and 65535. If no windowsize is specified, then the default windowsize of 1 block will be used. | |
The following RFC's are supported:
RFC 1350: The TFTP Protocol (Revision 2),
RFC 2347: TFTP Option Extension,
RFC 2348: TFTP Blocksize Option,
RFC 2349: TFTP Timeout Interval and Transfer Size Options,
RFC 3617: Uniform Resource Identifier (URI) Scheme and Applicability Statement for the Trivial File Transfer Protocol (TFTP),
RFC 7440: TFTP Windowsize Option,
The non-standard rollover and blksize2 TFTP options are mentioned here: http://www.compuphase.com/tftp.htm
Extending TFTP,
Edwin Groothuis <edwin@FreeBSD.org> performed a major rewrite of the tftpd(8) and tftp code to support RFC2348.
Files larger than 33488896 octets (65535 blocks) cannot be transferred without client and server supporting the TFTP blocksize option (RFC2348), or the non-standard TFTP rollover option.
TFTP (1) | March 2, 2020 |
Main index | Section 1 | 日本語 | Options |
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