Hello! When you establish a TCP connection, the data from the server to the client can go over the same socket without any problem if your nat/firewall has been configured properly.
If you still want to *force* a source port, you need to modify the client code in each of the devices to bind(2) the client socket to the port number you wish to use for that device. On Saturday, January 5, 2013 6:28:24 AM UTC-5, [email protected] wrote: > > Hey guys I have a problem with node and I hope you can help me. > > So the problem is that i have 9 network devices that are all listening on > the same port lets call it X these device all connect to the node JS server > and sending strings to the server. Now my problem is that between the 9 > devices and the nodeserver is a router that shall map the connections with > different ports. I dont know much router and networking but what i know is > that the router maps 9 different ports to X our port that the devices are > using. Now i need node to write over the tcp protocoll via this matched > ports to communicate with the devices. How can i do it. When i have these 9 > clients connected to my server they all have different remotePorts and > furthermore not the ones i would like them to have. > > Is there any possibility to change the ports or to define them? Because I > am not allowed to make all ports accessable. > > Heres my sample code for a little server that connects n clients: > > function server(port){ > this.port = port; > this.clients = new Array(); > this.web; > } > > server.prototype.listen = function(){ > this.connection = require('net').createServer(); > this.connection.listen(this.port, (function(){ > console.log('server listening on ' + this.port); > }).bind(this)); > return this.connection.on('connection', this.addClient.bind(this)); > }; > > server.prototype.addClient = function(socket){ > this.clients.push(new client(socket, this)); > }; > > function client(socket, server){ > this.socket = socket; > this.server = server; > this.ip = socket.remoteAddress; > this.port = socket.remotePort; > this.socket.on('connect', (function(){ > console.log('client:\nremoteAddress: ' + this.ip + '\nremotePort: ' + > this.port); > }).bind(this)); > } > > tcp = new server(2222); > tcp.listen(); > > > > Here is also a small sketch that i made: > > > <https://lh3.googleusercontent.com/-jdoqFo0RIz4/UOgN9HcCVAI/AAAAAAAAAAU/QbYT4ylYvMU/s1600/node+problem.png> > I hope this helps > > And Thank you > > -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
