TcpClient SocketException .NET

hi, my computer configured to have automatically ip address and when i use ipconfig /all command that shows something like below:

Windows IP Configuration

PPP adapter Broadband Connection:

Connection-specific DNS Suffix . : IPv4 Address. . . . . . . . . . . : 95.38.95.204 Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : 0.0.0.0

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::64d7:e4ee:ba7e:1ede IPv4 Address. . . . . . . . . . . : 192.168.72.198 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.0.1

i should use 95.38.95.204 or 192.168.72.198 as ip address for server and client?

when i use 192.168.72.198, server connect successfully but client throw an SocketException like below

 var tcpServer = new TcpClient();
 tcpServer.Connect(new IpAddress("192.168.72.198"), 1986);

A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 192.168.72.198:1986

i used this articles on geekpedia at http://www.geekpedia.com/tutorial239_Csharp-Chat-Part-1---Building-the-Chat-Client.html

thanks if anybody can help me

thanks, but article author said we can use 192.168.72.198 and this should be works properly. but on my computer not. i need to change any section on network setting? i'm using windows 7, ilso when i turn off my adsl modem and get ipconfig command, result is nothing and says Media disconnected

Sadegh 2010-07-02 08:57:20

I agree with Graphain; the most likely reason for that error is that your server process is not running. You can test this by running `netstat -a` and looking for port `1986` in a `Listening` state. Regarding your comment, you need a network to have a network address; this is why 192.168.72.198 goes away when you turn off your modem.

Stephen Cleary 2010-07-02 13:06:00

@Stephen when i run netstate -a on cmd that shows this: **TCP 192.168.72.198:1986 Sadegh-PC:0 LISTENING** but still my client can't connect to this ip:port and SocketException was thrown(timeout and connection failed)

Sadegh 2010-07-02 16:23:11

Try using `IPAddress.Any` for your server's IP. That's the standard practice for servers.

Stephen Cleary 2010-07-02 17:31:11

oh man that great but still client can't connect

Sadegh 2010-07-02 18:53:06

It might be listening, but is it actually responding? If you do `telnet 192.168.72.198 1986` in a command prompt, and pretend to be the client and send whatever the client would by typing it and hitting enter what happens?

Graphain 2010-07-04 23:19:58

ansaurus

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TcpClient SocketException .NET

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