After many hours, I have discovered that the given udp server needs the following steps for a successful communication: 1- Send "Start Message" on a given port 2- Wait to receive from server on any port 3- Then the port dedicated to you to send further data to the server equals the port you have received on it + 1 So I am asking if thi...
I couldn't find this online so I thought I'd ask here. What protocols can be used by websockets currently? (in chrome) Also does chrome or any other browser plan to support RUDP protocol for websockets eventually? Thanks in advance! ...
HI all. Here is the scenario. I have port 8888 for my program to use. I build a TCP and a UDP listener on that port. (This can do, c# allows, because they are two different protocols) My question is If the network traffic is very busy, TCP sockets may refuse or signalling the other end to stop sending things, it is called congestion...
I have been creating an application using UDP for transmitting and receiving information. The problem I am running into is security. Right now I am using the IP/socketid in determining what data belongs to whom. However, I have been reading about how people could simply spoof their IP, then just send data as a specific IP. So this seems...
Hi All, I am developing an embedded system and very new to this TCP\IP. My problem is that once I installed my board in a local network and this board will acquire its IP address dynamically, it has to communicate with a client application running on one of the PC(other than DHCP server) in the network. To communicate with this new boar...
Short radio link with a data source attached with a needed throughput of 1280 Kbps over IPv6 with a UDP Stop-and-wait protocol, no other clients or noticeable noise sources in the area. How on earth can I calculate what the best packet size is to minimise overhead? UPDATE I thought it would be an idea to show my working so far: IPv6 ha...
I am writing a Client/Server set of programs Depending on the operation requested by the client, I use make TCP or UDP request. Implementing the client side is straight-forward, since I can easily open connection with any protocol and send the request to the server-side. On the servers-side, on the other hand, I would like to listen b...
Hi all,I am trying to build a UDP application(P2P) of Large file transfer in Flex. My back end is C++. How can I transfer my client's files to server without any middle server. If I use stratus services..how to connect that to C++. Please help me, if possible with source code. Thank you. ...
I've got an app that needs to transmit and receive on the same port. This can happen in two cases: Where the PC is talking to a piece of remote hardware. It "replies to sender", so the datagrams come back in to my PC via the sending port. Where the PC is talking to itself (loopback mode) for testing and demoing (a test app feeds fake d...
i want to transmit and receive data on RS232 using udp and i want to know about techniques which allow me to transmit and receive data on a faster rate and also no lose of data is there? thanx in advance. i have tried but need improvements if possible #include <stdio.h> #include <dos.h> #include<string.h> #include<conio.h> #includ...
I would like a utility that would allow me to send/receive tcp and udp messages as a client or server, assemble packets, set responses, etc... Preferably on Windows. Please let me know if you've seen anything like this. THANKS! ...
Hello everybody, I am trying to read the UDP packages in python, which were sent from an FPGA. I see the packages in wireshark, and they look allright. Python, however does not receive anything when I use this simple script: import socket import sys HOST, PORT = "192.168.1.1", 21844 sock = socket.socket(socket.AF_INET, socket.SOCK_DGRA...
I have an application which occasionally leaves an entry in the output of the netstat command which indicates a UDP socket is associated with a port on another machine, and the state that the netstat command reports is "established". To my understanding, this does not make sense -- UDP is a connectionless protocol, right? When this hap...
I'm trying to do something like this. There is one server , and multiple clients in the same subnet. Clients will send something to server and server will send this message back to all the other clients in the subnet. So this looks like broadcast to me. But i never could manage to do this in C.. I'd be glad if you give me an example of t...
i am trying to broadcast a UDP package using subnet. i want to braodcast my package to 192.168.1.255 ? can i do that ? and how using c++ ? ...
In computer networking, the Reliable User Datagram Protocol (RUDP) is a transport layer protocol designed at Bell Labs for the Plan 9 operating system. It aims to provide a solution where UDP is too primitive because guaranteed-order packet delivery is desirable, but TCP adds too much complexity/overhead. It extends UDP by adding the fol...
Hi, Has anyone used DTLS on Android or is there an open source Java implementation that supports DTLS? What are my other options for securing UDP traffic on Android ? Thanks. ...
I am using SharpPCap which is built on WinPCap to capture UDP traffic. My end goal is to capture the audio data from H.323 and save those phone conversations as WAV files. But first thing is first - I need to figure out what my UDP packets are crossing the NIC. SharpPCap provides a UdpPacket class that gives me access to the PayloadDat...
I'm trying to find a version of UDP which just alleviates the restriction of a maximum size of the message sent. I don't care about reliability or partial retransmission, if all chunks arrive I want the message to be assembled from the chunks in sending order and delivered to the listening app. If one or more chunks are missing I would j...
Hello everybody, I am trying to read UDP packages sent by an FPGA with my computer. They are sent to port 21844 and to the IP 192.168.1.2 (which is my computer's IP). I can see the package in wireshark, they have no errors. When I run however this little python script, then only a very very small fraction of all packages are received by ...