udp

问题 how to use "udptunnel" so that i will be able to send and receive udp packets over tcp probably with an example 回答1: You start udptunnel on two PCs in different networks and connect them as decribed here: http://www.cs.columbia.edu/~lennox/udptunnel/ with an example: http://wiki.leipzig.freifunk.net/Udptunnel 来源： https://stackoverflow.com/questions/3566208/how-to-forward-udp-packets-over-tcp-udptunnel

问题 There seems to be no portable way to set the source IP for sending UDP datagrams from sockets bound to INADDR_ANY, but at least on Linux and FreeBSD it can be done using sendmsg() and the IP_PKTINFO (Linux) or IP_SENDSRCADDR (FreeBSD) option. (See this question.) Is there an equivalent option to set the UDP source IP on Windows ? 回答1: From MSDN: WSASendMsg function [...] On an IPv4 socket of type SOCK_DGRAM or SOCK_RAW , an application can specific the local IP source address to use for

问题 I'm in a hurry at the moment. My Question is, is there a way to forward UDP to TCP port? I need this for hosting a game server for my friends, I want to host Counter-Strike server for example, but it uses UDP (User Datagram Protocol) for server port, but NGROK only supports TCP (Transmission Control Protocl) & HTTP (HyperText Transfer Protocol). I tried this while ago.. ngrok tcp 127.0.0.1:27015 and as usually it will start : ngrok by @inconshreveable (Ctrl+C to quit) Session Status online

问题 I'm in a hurry at the moment. My Question is, is there a way to forward UDP to TCP port? I need this for hosting a game server for my friends, I want to host Counter-Strike server for example, but it uses UDP (User Datagram Protocol) for server port, but NGROK only supports TCP (Transmission Control Protocl) & HTTP (HyperText Transfer Protocol). I tried this while ago.. ngrok tcp 127.0.0.1:27015 and as usually it will start : ngrok by @inconshreveable (Ctrl+C to quit) Session Status online

问题 I'm trying to diagnose a problem with the OpenSIPS ( a SIP proxy ) application. When sending two different UDP packets to the same IP and port, one call fails with -1 EPERM (Operation not permitted) whilst the other is fine. Both of the calls are made from the same process ( at least the same PID ). The code in question is on github. Here's the strace output: strace -e sendto sendto(7, "SIP/2.0 100 Giving a try\r\nVia: S"..., 315, 0, {sa_family=AF_INET, sin_port=htons(5060), sin_addr=inet

问题 This question already has answers here : Difference between TCP and UDP? (11 answers) Closed 2 years ago . What exactly is a TCP connection? I understand there isn't a physical connection from the client to server. Is this connection just the client's socket being linked with the new socket created by the server after the three-way-handshake? Thereafter once the "connection" is set up, the sockets on either ends of the connection then know where to send their packets. How does this differ

问题 I'm developing a voip server-client app using NAUDIO and Sockets. I've read the naudio's documentation and I have tried alot to get the data from the microphone then send it to the client, the thing that you can get the data, but you have to save it to a byte array first then send it which is almost like sending a file using TCP. How can I get data from naudio and send it at the same time "Stream it" to the client using UDP protocol. Thanks in advance. 回答1: NAudio has a Network Chat Demo

问题 I'm developing a voip server-client app using NAUDIO and Sockets. I've read the naudio's documentation and I have tried alot to get the data from the microphone then send it to the client, the thing that you can get the data, but you have to save it to a byte array first then send it which is almost like sending a file using TCP. How can I get data from naudio and send it at the same time "Stream it" to the client using UDP protocol. Thanks in advance. 回答1: NAudio has a Network Chat Demo

问题 I've set a udp socket and call sendto() with a different recipient at each call. I would like to use writev() in order to benefit scater/gather io but writev() does not allows me to specify the recipient addr/port as in sendto(). Any suggestions? 回答1: You can use writev to send a coalesced set of buffers to a single end point if you use connect to specify the end point beforehand. From the (OSX) manpage for connect(2) : datagram sockets may use connect() multiple times to change their

问题 I am creating a server for a game that handles multiple clients over UDP using the asynchronous methods, and am specifically working on clean disconnect logic. When a client hard crashes (their program is closed without proper disconnect logic) the readCallback on the server throws the SocketException An existing connection was forcibly closed by the remote host which makes sense, however when the read is triggered the next time on the loop in read it crashes despite the exception being