I have a client/server application that communicates with .Net remoting. I need my clients to be able to find the server(s) on the network without requiring client-side configuration. As far as I know, there is no support for discovery in remoting. I am prepared to implement a UDP solution where the clients will be able to find the ser...
How do you get the maximum number of bytes that can be passed to a sendto(..) call for a socket opened as a UDP port? ...
You have multiple network adapters. Bind a UDP socket to an local port, without specifying an address. Receive packets on one of the adapters. How do you get the local ip address of the adapter which received the packet? The question is, "What is the ip address from the receiver adapter?" not the address from the sender which we get ...
I'm working on a .net solution that is run completely inside a single network. When users make a change to the system, I want to launch an announcement and have everyone else hear it and act accordingly. Is there a way that we can broadcast out messages like this (like UDP will let you do) while keeping guaranteed delivery (like TCP)? ...
I am looking for any strategies people use when implementing server applications that service client TCP (or UDP) requests: design patterns, implementation techniques, best practices, etc. Let's assume for the purposes of this question that the requests are relatively long-lived (several minutes) and that the traffic is time sensitive, ...
I'm reading some MPEG Transport Stream protocol over UDP and it has some funky bitfields in it (length 13 for example). I'm using the "struct" library to do the broad unpacking, but is there a simple way to say "Grab the next 13 bits" rather than have to hand-tweak the bit manipulation? I'd like something like the way C does bit fields (...
Is it possible for UDP data to come to you corrupted? I know it is possible for it to be lost. ...
For general protocol message exchange, with loss tolerant. How much more efficient is UDP over TCP? ...
I have a classic client/server (fat client and database) program written in Delphi 2006. When certain conditions are met in the client, I need to notify all the other clients very quickly. Up until now this has been done using UDP broadcasts, but this is no longer viable as clients now connect from outside the LAN and the UDP broadcast i...
I'm receiving a recovery feed from an exchange for recovering data missed from their primary feed. The exchange strongly recommends listening to the recovery feed only when data is needed, and leaving the multicast once I have recovered the data I need. My question is, if I am using asio, and not reading from the NIC when I don't need ...
see title? ...
I have some experience making multiplayer turn-based games using sockets, but I've never attempted a realtime action game. What kind of extra issues would I have to deal with? Do I need to keep a history of player actions in case lagged players do something in the past? Do I really need to use UDP packets or will TCP suffice? What else? ...
For UDP packets with a payload less then 1470, is it possible to achieve 1Gbit throughput? Due to the small packet size, there should be some bottlenecks in achieving such throughput (I/O, OS, network, etc.). I imagine drivers and hardware might have to be tuned to small packet/high throughput. Has anybody attempted successfully achieved...
If you have a situation where a TCP connection is potentially too slow and a UDP 'connection' is potentially too unreliable what do you use? There are various standard reliable UDP protocols out there, what experiences do you have with them? Please discuss one protocol per reply and if someone else has already mentioned the one you use ...
In Java you can give the number zero as a single parameter for the Socket or DatagramSocket constructor. Java binds that Socket to a free port then. Is it possible to limit the port lookup to a specific range? Thanks in advance, Roland ...
I found an article on getting active tcp/udp connections on a machine. http://www.codeproject.com/KB/IP/iphlpapi.aspx My issue however is I need to be able to determine active connections remotely - to see if a particular port is running or listening without tampering with the machine. Is this possible? Doesn't seem like it natively,...
As a hobby i'm interesting programming a Ethernet connected LED sign to scroll messages across a screen. But I'm having trouble making a UDP sender in VB .net (using 2008 currently) Now the sign is nice enough to have a specs sheet on programming for it: http://support.favotech.com/protocol.specs.2.4.jetfile.pdf But an example of a lin...
How do ports (or their functional equivalent) work with IPv6? Thanks! The Wikipedia article points out that the syntax of an IPv6 address includes colons and has a short form preventing fixed-length parsing, and therefore you have to delimit the address portion with []. This completely accounts for the odd parsing errors. ...
I recently turned on Windows Firewall logging on my computer and started tracking incoming and outgoing connections. Something curious about the logfiles is that I have noticed numerous UDP packets (in fact, it constitutes basically all of my incoming traffic) that don't have my host as destination or source showing up in the logs. I th...
How are the UDP and TCP protocols used in MMORPG client/server communication? For example: Does the client broadcast (player position, etc) via UDP to the server? or vice versa? Or is it more like using TCP where the Client requests that the server move the player. The server receives the request, moves the player and sends back to t...