530 Topics
http://oi46.tinypic.com/29usx81.jpg . In this image there is a network diagram All rooms (shown by 1,2,3.....,11) should be in different networks. X,Y,Z are the router's ports. What IP addresses should I put them?(Is it a must to put an IP to xyz parts?) A is the router. what IP should I …
Hello, I Need a TCP / IP Port Listener on my centos VPS Hosting to receive gps tracker signals on ports and store in mysql db. For further processing of received stored data, we are working on a php mysql application, but to listen to port signals, which programming language …
> this is my udp server code #include<iostream> #include<arpa/inet.h> #include<unistd.h> #include<sys/socket.h> #include<sys/types.h> #include<stdio.h> #include<string.h> #include<stdlib.h> using namespace std; void error( char *msg) { perror(msg); exit(EXIT_FAILURE); } int main() { int sockfd; sockfd = socket(AF_INET,SOCK_DGRAM,0); struct sockaddr_in serv,client; serv.sin_family = AF_INET; serv.sin_port = htons(53000); serv.sin_addr.s_addr = INADDR_ANY; char buffer[256]; socklen_t l …
I have setup my own server(just a windows XP service pack 2 installed) now i want my friend to connect to it. I understand that there are 2 ways to do this. You can type in your CMD: telnet [IP Address] [PORT] Or you could type: telnet and then the …
i going to make socket application in c# i dont know more about socket but i have tried but fail . now i want know some more information plz share with me. 1)my server is located in other city . 2)what type of socket i need TCP or UDP ? …
trying to configure my windows sever 2008 as a DHCP SERVER to distribute internet access within a local network.
I am working on creating a basic battleships game in .NET, I have got all the functionality working however i have never used .NET for any networking applications. All i need to do is send a co-ordinate to the other player when they click on a given square. the co-ordinates …
can UDP run on computers that support only TCP protocol? WHy?
I have this C++ network client program but it has an error. Here is the error: error C2664: 'wsprintfW' : cannot convert parameter 1 from 'char [128]' to 'LPWSTR' Here is the code: // Client program example #define WIN32_LEAN_AND_MEAN #include <winsock2.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #define DEFAULT_PORT 2007 …
Hello, about online games/programs, can i create a listener wich will catch all datas received from server What i should use? i create a simple TCPClient/TCPListener but i can only make it listen in localhost :/ maby i use wrong classes, i no have idea about theory part... that i …
HI all, I'm having a lot of trouble finding out these routing tables using RIP Protocol as I'm really unfamiliar with it Routers M and N use the RIP routing protocol The original routing table in M is: Destination Distance Route Net 1 0 direct Net 2 0 direct Net …
Two parted question really... First off, I've been trying to enable my SQL Server 2008 R2 to allow remote access so my friend can view it from his RDBMS (also SQL Server 2008). I've enabled TCP/IP, I've allowed Remote Access/Connection, I've opened TCP and UDP Ports and also added the …
Router XX has forwarding table: Network/Mask Next_Hop 170.211.220.0/24 deliver directly 170.211.220.0/22 184.129.184.1 170.211.208.0/22 184.129.170.1 170.211.216.0/21 184.129.178.1 170.211.216.0/23 184.129.172.1 0.0.0.0/0 184.129.178.1 Explain what router XX will do with packets with the following destination addresses. Be sure to use longest prefix routing. a. 170.211.218.17 b. 170.211.220.108 c. 170.211.222.44 d. 170.211.218.128 e. 184.129.184.1 …
metasploit,nmap,IDM.... what protocols do the tunnel? HTTP,TCP,UDP,VoIP,HTTPS etc..??
Hello all daniwebbers. I've been working on an application that uses TCP to send messages to another computer, but I am going to be updating it alot! I know how to make my program update itself, but I just want a progress bar so you know how long it will …
this is my server code i want to receive more than 1000000 bytes ,so the data should be splited into many packets so i use loop to receive all data ,if i use like this server always wait for client even client sent all data to server ,my messsage is …
Good Afternoon, I'm new to socket programming, and the assignment that I have to do with Server/Client socket programming which I have to write server and client programs to send text across Transport Service Access Points (TSAPs) also known as TCP ports or Sockets. Your program can select any non-privileged …
Why a router does not have only one IP address (i.e. for itself). and why a unique IP address need to be associated with each interface? Whats the scenario which neccessiates each interface to have an IP addresses?(TCP IP)
Hi, I just want to know which is the best way to transfer files between clients and server. My server is accessed from client through internet. I found some results after googled as using tcp/udp/ftp... So , i just want to know which one is best and why ? . …
hi i work on project in java and i use tcp and after that i almost finish the project then i have to create an applet and the applet doesnot work with tcp so what can i do i need any help?
my professor provided us with the java program so we could each compile it and run it on our computers. heres what i get: socketProgramming$ java TCPServer <--------name of program - TCP Server program started. - Server welcoming at port #: 6789 im trying to connect to my professors terminal …
I have this code where I get all the IP's connected to the network.. [CODE] Dim oWMI = GetObject("winmgmts:") Dim IP = GetObject("winmgmts:") Dim oPings = GetObject("winmgmts:") Dim PcName = GetObject("winmgmts:") For i = 100 To 105 IP = "192.168.168." + i.ToString oPings = oWMI.ExecQuery("Select * from WIN32_Pingstatus where address='" …
I have the basics down on the VPN, but I seem to have several problem. I have the 4 locations that I can hit, they route to one machine, I use different Ips however, all static. For instance, the first location has IP 10.0.0.2 to 10.0.0.19, next location has Ips, …
Hello all. I have been trying to get port forwarding going for 3 days with my d link DIR-628 router. Ive been checking to see if my changes to my dlink settings have taken effect at this web site and many similar. [url]http://www.canyouseeme.org/[/url] . I usually type in my local …
Would it be ok to read a book written in 2002 to learn networking and TCP/IP? Computer networks by tanenbuam
Hi there, I have this coursework to do and I don't know why my code is not working. Could you help, please? Many thanks. Task 1 You are to develop a UDP server, and Client, capable of transferring a file (worth up to 60% of total available marks for this …
Hi computer started to become weird since i installed Ubuntu 11.10 with wubi to run it with windows. it's been given me 11!! BSOD's already all related to tcpip.sys problems. it happens only when i'm connected to the Internet. I'm new to the hardware part and i saw that people …
Hi all, i've question , i'm using GNS3 virtualbox edition, and using 2 client with win xp installed on virtualbox detail is client-1 is on vlan 10 with ip : 10.10.10.1 client-2 is on vlan 10 with ip : 10.10.20.1 i've done in configure cisco at inter-vlan router and ping …
I know we learn about TCP/IP but,is it...... 1.is it a software(I think it has to be)? 2.Is it a BIOS level software? 3.Where is the protocol set installed in a computer?(Windows,linux,mac etc..) 4.Can we uninstall it like normal software? 5.Can we update it? 6.Where do routers and modems have …
[CODE]package test; import java.util.*; import sun.security.krb5.internal.UDPClient; import java.net.*; public class CMD { public static void main(String[] args) throws UnknownHostException, SocketException { DatagramSocket sock = new DatagramSocket (); Scanner keyboard = new Scanner(System.in); String fisrtarg=null; // System.out.println("Enter CMD"); // fisrtarg = keyboard.nextLine(); if (args.length > 0) {//this is important if no …
In a client server program ... generally when the server goes down the client on executing the send command 2 times returns a SIGPIPE signal . I want to know y this happens. The client must recieve sigpipe immediately when it sends a message after the socket connection is broken …
i have programming assignment which is to make UDP and TCP client now i already finished UDP ,TCP client and GUI now i want to make the command line class So the assignment tell me that "CLIENT: The client should read input from the command line: • -x <number>, where …
I have developed the Server client application(TCP) which works fine. I need to start the server and the client do request and get the desired ouput. I want the server application to run on client machine some what like windows service(when the system boots the services starts). Can anyone suggest …
i'm a beginner for coding at java . net now i got a problem with input the port plz see the code [CODE]package test; import java.net.*; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; public class UDPCliet { final int buffSize = 10001;//buff size final int TIMEOUT = 3000; final …
I am trying to implement process pairs redundancy (process level redundancy) in c/c++. basically there is a active core process 1 running on one system and its standby copy, process 2, is running on other system. When ever the active one goes down the standby becomes active and executes the …
hello, please can any one help me how can the router distinguish that the packet belong to previous flow in IPv4 thank you in advance for any help best regards
hello every body, Usually one client establishes multiple TCP connections to a certain web server ‎for improved HTTP performance. how can it seen to be as one session? is it contain the same port number and Ip address? then what is the difference between it, to diffrentiate between them? thank …
Hello! I don't have a router. So i am thinking of using a switch instead which i have. Is it ok to use a switch instead of a router that is to be connected to a DSL modem which is connected to a DSL line. And then I am going …
Hi everyone :) This is one of my first programs using C, so I am facing some issues. our professer asked us to develop a TCP socket (client/server) where the client sends lets say an ID,Name or Major and the server searches into a txt file and returns the line(s) …
Hi, networking is new to me in vb.net as I normally use third party components to do my networking like Winsock Orcas. However I want to make my own classes for networking. The following is what I have so far. It has problems. 1) Its disorganized...particularly the way I'm multi-threading, …
Hi, I was trying to figure this out. I've been scratching my head all morning and I'm at a mental dead end. Can anyone help me? Malicious code in red [CODE]/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package …
Hello everybody. How do you do? I have a really odd problem. I am using an application which is running on MS OS-es. (MS Windows XP SP3, MS Server 2003) This application connects to a remote SQL server (MS Server 2003). The version of MS SQL was 2000 (previous free …
I am currently having a very similar problem. I followed the directions in the sticky. Here are my log files from GMER and DDS I will follow up with Malwarebytes log when it finishes. My connection to my network has been acting up since this started as well it wont …
Hi, i've a problem with my codes, when ever i run it, i got an error from the checking i implemented. Can some pls explain why does the error keep coming. [CODE]import java.net.*; import java.io.*; public class EchoClient{ static final int serverPort = 1026; static final int packetSize = 1024; …
Hi all i had a question in my networking exam today which was : which transmission protocol would you use ( TDM with 4 slots or packet ) if the devices (A,B,C,D and Y) transmit through the network for : a - 90% of the time b - 5% of …
I have a server to which clients are connected using TCP connection. All the clients broadcast to each other using UDP braodcasting.I want to disconnect one of the client from the UDP connections from server. what can be the possible ways to do this? please suggest.
Hi, as part of my project, i need to write code that actually implements the tcp layer functions. Could anyone tell me where i could get some idea on how to code the functions of tcp layer (i.e. I need to manage the transfer of data between the network and …
My computer has recently been crashing to BSOD (Blue Screen of Death) very often. I looked up the TCPIP.SYS error that came up and saw that I should reinstall my ethernet slot drivers. I tried that but it didn't work. I have attached the last 6 dmp files from the …
I have a desktop with XP Pro that looses connection to the network every 2 hours. Power cycling the modem/router fixes the problem for 2 more hours. System worked properly before adding an external ip phone to my TalkSwitch PBX. Setting up the external IP phone required some port forwarding. …
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