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Questions tagged [tftp]

Trivial File Transfer Protocol (TFTP) is a file transfer protocol notable for its simplicity.

TFTP is a very simple and lightweight file transfer protocol.
It only supports to read and to write files from/to a remote. Even a directory listing is not supported. It is sometimes used to boot devices without data storage or to update firmware.
TFTP is build on top of UDP and using port 69.

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Checking connectivity with tftp server and accessibility of file there

I have BusyBox v1.23.2 multi-call binary. with simple tftp-client. I need to check connectivity with a tftp server and accessibility of file there. For ftp it may look like this: if wget -q -s $url; then echo "found" fi Is there a…
ltWolfik
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In the TFTP Client Server application, how does a UDP datagram modify the IP header?

I am building a TFTP(RC1350) application using Java. So far I have been able to make the successful transfers between two different computers whether its for a read request or a write request. As the RC1350 specification suggests, I specify the…
Haris Ghauri
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How to unpack format?

I'm working with sockets 2 different folders on computers. I'm creating a basic TFTP client/server program. My code is as follows: def RRQ (filename): format = "!H%ds" % (len(filename)+1) format += "%ds" % (len(mode)+1) s =…
Idea
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TFTP protocol with options negotiation

I have to implement the TFTP protocol in C for a school projet according to the RFC 1782. When a client send a RRQ paquet with option(s), the serveur reply with a OACK paquet to confirm the recognized option(s). I'm fine with that. Buf if the client…
Mathieu
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Kernel and Rootfs booting through tftp

Task: to load kernel and rootfs image and execute into the ram without storing onto the spi flash I loaded flashable image (zimage at 0x200000) and flashable rootfs (jffs2 at 0x200000+offset) tftp zimage 0x200000 tftp jffs2 0x200000+offset bootm…
Nayeem
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What is the best way in C# (windows10) to similar dos prompt command "tftp 192.168.x.x put c:\x.bin"

What is the best way in C# (windows10) to similar dos prompt command "tftp 192.168.x.x put c:\x.bin" I already doing it ProcessStartInfo but it doesn't work in Windows 10...
İlkin
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How to get the file name from an RRQ datagramPacket?

Im working on a TFTP server. Basing on the image the max length of my packets is 516 bytes (2+2+512). I'm trying to take the original length from the client datagrampacket(in this case sends 13 bytes in a RRQ packet), instead im getting the server…
user4754124
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TFTP client does not recognize when last packet has been sent

I'm using the mac TFTP client to work with my TFTP Java server. Whatever is requested from the client (in this case a txt file) is read and rewritten as it should. However I'm having a problem where the client doesn't seem to recognize that the…
Johan Rovala
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How to listen to ACK packages on ephemeral ports

I need to write a tftp client implementation to send a file from a windows phone 8.1 to a piece of hardware. Because I need to be able to support windows 8.1 I need to use the Windows.Networking.Sockets classes. I'm able to send my Write request…
datezZz
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Bootloader Set Up for TFTP and NFS; Diskless Boot Up from Amazon EC2

Currently, I have successfully boot up my wandboard with TFTP for kernel and NFS for rootfs locally. Still, I want to achieve on booting it over the cloud set up in Amazon EC2. The machine could get the kernel files and boot up fine. However, it…
Charles C.
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uboot timeouts, but tftp server says transfer done- integer-folds of 512 bytes

I am trying to download a file with uboot. When the filesize is 512 bytes and it integer-folds, Uboot gives timeout, but tftp server says transfer done. TFTP Server is on Windows 7 Uboot log: using FM1@DTSEC2 device TFTP from server 192.168.1.22;…
Bahri Gökcan
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TFTP UDP header checksum failure

I have a codebase in C that parses network packets, and it seems to work with UDP just fine. Except for (the first packet of) TFTP. Is the Ubuntu tftp client (which is actually the BSD netkit TFTP client) faulty in this respect? I have noticed, for…
KJH
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tftp server does not work behinf tap interface

I have problem with tftp server that is running under qemu. Qemu is connected to host by tap interface. Output from wireshark shows that packed arrived to host, but hosts udp socket (and put command) ends up with timeut, netstat -au shows no data…
Marcin
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How to listen to a port(69) of a server using the TFTP session in java?

I want to get a file thrown by the client using the TFTP session. I mean the TFTP session has to listen to the port continuously and catch the file that was thrown from the client. I have googled it and couldn't find any library except "package…
Ivs Babu
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winsock select() function returning 0

I am implementing a TFTP Client application in MFC. Below are two functions: 1) Connect to server function.. int TFTPClient::connectToServer() { cout << "Connecting to " << server_ip << " on port " << server_port << endl; socket_descriptor =…
MDK
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