Server gives exception and fails to start
lately I started to learn about Tcp/ip sockets in c#, so I watched a tutorials and read online about it. I followed tutorial and I made client-server app that is sending simple text to the server on the same network. I tried to "upgrade" and make client communicate with other client that is on different network thru server. But now server fails to start saying that "The requested address is not valid in its context".
First was server running as localhost, but now when I want to clients that are in different networks communicate through server , server needs to run on my ip address so other client in different network could connect. I did IPAddress ip = IPAddress.Parse("my IP"); and TcpListener server = new TcpListener(ip, 10000); I tried using different ports but its still the same.
This is what exceptions tells me
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at System.Net.Sockets.TcpListener.Start(Int32 backlog)
at System.Net.Sockets.TcpListener.Start()
IPAddress ip = IPAddress.Parse("192.168.1.5"); //Mock IP
TcpListener server = new TcpListener(ip, 8080);
TcpClient client = default(TcpClient);
TcpClient client2 = default(TcpClient);
try
{
server.Start();
Console.WriteLine("Server started...");
}
catch(Exception ex)
{
Console.WriteLine("Server failed to start... {0}",ex.ToString());
Console.Read();
}
while (true)
{
client = server.AcceptTcpClient();
client2 = server.AcceptTcpClient();
byte receivedBuffer = new byte[1000];
byte receivedBuffer2 = new byte[1000];
NetworkStream stream = client.GetStream();
NetworkStream stream2 = client2.GetStream();
stream.Read(receivedBuffer, 0, receivedBuffer.Length);
stream2.Read(receivedBuffer2, 0, receivedBuffer2.Length);
StringBuilder message = new StringBuilder();
foreach (byte b in receivedBuffer)
{
if (b.Equals(126))
{
break;
}
else
{
message.Append(Convert.ToChar(b).ToString());
}
}
StringBuilder message2 = new StringBuilder();
foreach (byte g in receivedBuffer2)
{
if (g.Equals(126))
{
break;
}
else
{
message2.Append(g);
}
}
//string message = Encoding.ASCII.GetString(receivedBuffer, 0, receivedBuffer.Length);
Console.WriteLine(message.ToString() + message.Length);
Console.WriteLine(message2.ToString() +message2.Length);
c# tcp websocket
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
asked Dec 31 '18 at 15:05
LordRedLordRed
133
add a comment |
lately I started to learn about Tcp/ip sockets in c#, so I watched a tutorials and read online about it. I followed tutorial and I made client-server app that is sending simple text to the server on the same network. I tried to "upgrade" and make client communicate with other client that is on different network thru server. But now server fails to start saying that "The requested address is not valid in its context".
First was server running as localhost, but now when I want to clients that are in different networks communicate through server , server needs to run on my ip address so other client in different network could connect. I did IPAddress ip = IPAddress.Parse("my IP"); and TcpListener server = new TcpListener(ip, 10000); I tried using different ports but its still the same.
This is what exceptions tells me
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at System.Net.Sockets.TcpListener.Start(Int32 backlog)
at System.Net.Sockets.TcpListener.Start()
IPAddress ip = IPAddress.Parse("192.168.1.5"); //Mock IP
TcpListener server = new TcpListener(ip, 8080);
TcpClient client = default(TcpClient);
TcpClient client2 = default(TcpClient);
try
{
server.Start();
Console.WriteLine("Server started...");
}
catch(Exception ex)
{
Console.WriteLine("Server failed to start... {0}",ex.ToString());
Console.Read();
}
while (true)
{
client = server.AcceptTcpClient();
client2 = server.AcceptTcpClient();
byte receivedBuffer = new byte[1000];
byte receivedBuffer2 = new byte[1000];
NetworkStream stream = client.GetStream();
NetworkStream stream2 = client2.GetStream();
stream.Read(receivedBuffer, 0, receivedBuffer.Length);
stream2.Read(receivedBuffer2, 0, receivedBuffer2.Length);
StringBuilder message = new StringBuilder();
foreach (byte b in receivedBuffer)
{
if (b.Equals(126))
{
break;
}
else
{
message.Append(Convert.ToChar(b).ToString());
}
}
StringBuilder message2 = new StringBuilder();
foreach (byte g in receivedBuffer2)
{
if (g.Equals(126))
{
break;
}
else
{
message2.Append(g);
}
}
//string message = Encoding.ASCII.GetString(receivedBuffer, 0, receivedBuffer.Length);
Console.WriteLine(message.ToString() + message.Length);
Console.WriteLine(message2.ToString() +message2.Length);
c# tcp websocket
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
asked Dec 31 '18 at 15:05
LordRedLordRed
133
What line is throwing the exception?
– Symon
Dec 31 '18 at 15:11
Line 26 when server is supposed to start.
– LordRed
Dec 31 '18 at 15:20
Here is MSDN reference for usingTcpListenerjust as a reference. -- Firstly, I would hope that isn't your actualIPgiven in the question, and if it is, I recommend changing it (within the question) for security. Then , I would verify if anything is already running onport 8080. Have you tried different ports?
– Symon
Dec 31 '18 at 15:35
I tried to change ports but its saying that ip its not valid for some reason but when i start it from local ipv4 address with same port it works.
– LordRed
Dec 31 '18 at 17:03
It is working only with local ip.
– LordRed
Dec 31 '18 at 17:54
add a comment |
lately I started to learn about Tcp/ip sockets in c#, so I watched a tutorials and read online about it. I followed tutorial and I made client-server app that is sending simple text to the server on the same network. I tried to "upgrade" and make client communicate with other client that is on different network thru server. But now server fails to start saying that "The requested address is not valid in its context".
First was server running as localhost, but now when I want to clients that are in different networks communicate through server , server needs to run on my ip address so other client in different network could connect. I did IPAddress ip = IPAddress.Parse("my IP"); and TcpListener server = new TcpListener(ip, 10000); I tried using different ports but its still the same.
This is what exceptions tells me
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at System.Net.Sockets.TcpListener.Start(Int32 backlog)
at System.Net.Sockets.TcpListener.Start()
IPAddress ip = IPAddress.Parse("192.168.1.5"); //Mock IP
TcpListener server = new TcpListener(ip, 8080);
TcpClient client = default(TcpClient);
TcpClient client2 = default(TcpClient);
try
{
server.Start();
Console.WriteLine("Server started...");
}
catch(Exception ex)
{
Console.WriteLine("Server failed to start... {0}",ex.ToString());
Console.Read();
}
while (true)
{
client = server.AcceptTcpClient();
client2 = server.AcceptTcpClient();
byte receivedBuffer = new byte[1000];
byte receivedBuffer2 = new byte[1000];
NetworkStream stream = client.GetStream();
NetworkStream stream2 = client2.GetStream();
stream.Read(receivedBuffer, 0, receivedBuffer.Length);
stream2.Read(receivedBuffer2, 0, receivedBuffer2.Length);
StringBuilder message = new StringBuilder();
foreach (byte b in receivedBuffer)
{
if (b.Equals(126))
{
break;
}
else
{
message.Append(Convert.ToChar(b).ToString());
}
}
StringBuilder message2 = new StringBuilder();
foreach (byte g in receivedBuffer2)
{
if (g.Equals(126))
{
break;
}
else
{
message2.Append(g);
}
}
//string message = Encoding.ASCII.GetString(receivedBuffer, 0, receivedBuffer.Length);
Console.WriteLine(message.ToString() + message.Length);
Console.WriteLine(message2.ToString() +message2.Length);
c# tcp websocket
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
asked Dec 31 '18 at 15:05
LordRedLordRed
133
lately I started to learn about Tcp/ip sockets in c#, so I watched a tutorials and read online about it. I followed tutorial and I made client-server app that is sending simple text to the server on the same network. I tried to "upgrade" and make client communicate with other client that is on different network thru server. But now server fails to start saying that "The requested address is not valid in its context".
First was server running as localhost, but now when I want to clients that are in different networks communicate through server , server needs to run on my ip address so other client in different network could connect. I did IPAddress ip = IPAddress.Parse("my IP"); and TcpListener server = new TcpListener(ip, 10000); I tried using different ports but its still the same.
This is what exceptions tells me
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at System.Net.Sockets.TcpListener.Start(Int32 backlog)
at System.Net.Sockets.TcpListener.Start()
IPAddress ip = IPAddress.Parse("192.168.1.5"); //Mock IP
TcpListener server = new TcpListener(ip, 8080);
TcpClient client = default(TcpClient);
TcpClient client2 = default(TcpClient);
try
{
server.Start();
Console.WriteLine("Server started...");
}
catch(Exception ex)
{
Console.WriteLine("Server failed to start... {0}",ex.ToString());
Console.Read();
}
while (true)
{
client = server.AcceptTcpClient();
client2 = server.AcceptTcpClient();
byte receivedBuffer = new byte[1000];
byte receivedBuffer2 = new byte[1000];
NetworkStream stream = client.GetStream();
NetworkStream stream2 = client2.GetStream();
stream.Read(receivedBuffer, 0, receivedBuffer.Length);
stream2.Read(receivedBuffer2, 0, receivedBuffer2.Length);
StringBuilder message = new StringBuilder();
foreach (byte b in receivedBuffer)
{
if (b.Equals(126))
{
break;
}
else
{
message.Append(Convert.ToChar(b).ToString());
}
}
StringBuilder message2 = new StringBuilder();
foreach (byte g in receivedBuffer2)
{
if (g.Equals(126))
{
break;
}
else
{
message2.Append(g);
}
}
//string message = Encoding.ASCII.GetString(receivedBuffer, 0, receivedBuffer.Length);
Console.WriteLine(message.ToString() + message.Length);
Console.WriteLine(message2.ToString() +message2.Length);
c# tcp websocket
c# tcp websocket
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
asked Dec 31 '18 at 15:05
LordRedLordRed
133
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
asked Dec 31 '18 at 15:05
LordRedLordRed
133
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
edited Dec 31 '18 at 15:51
Sorceri
6,48011630
6,48011630
asked Dec 31 '18 at 15:05
LordRedLordRed
133
asked Dec 31 '18 at 15:05
LordRedLordRed
133
asked Dec 31 '18 at 15:05
LordRedLordRed
133
133
What line is throwing the exception?
– Symon
Dec 31 '18 at 15:11
Line 26 when server is supposed to start.
– LordRed
Dec 31 '18 at 15:20
Here is MSDN reference for usingTcpListenerjust as a reference. -- Firstly, I would hope that isn't your actualIPgiven in the question, and if it is, I recommend changing it (within the question) for security. Then , I would verify if anything is already running onport 8080. Have you tried different ports?
– Symon
Dec 31 '18 at 15:35
I tried to change ports but its saying that ip its not valid for some reason but when i start it from local ipv4 address with same port it works.
– LordRed
Dec 31 '18 at 17:03
It is working only with local ip.
– LordRed
Dec 31 '18 at 17:54
add a comment |
What line is throwing the exception?
– Symon
Dec 31 '18 at 15:11
Line 26 when server is supposed to start.
– LordRed
Dec 31 '18 at 15:20
Here is MSDN reference for usingTcpListenerjust as a reference. -- Firstly, I would hope that isn't your actualIPgiven in the question, and if it is, I recommend changing it (within the question) for security. Then , I would verify if anything is already running onport 8080. Have you tried different ports?
– Symon
Dec 31 '18 at 15:35
I tried to change ports but its saying that ip its not valid for some reason but when i start it from local ipv4 address with same port it works.
– LordRed
Dec 31 '18 at 17:03
It is working only with local ip.
– LordRed
Dec 31 '18 at 17:54
What line is throwing the exception?
– Symon
Dec 31 '18 at 15:11
What line is throwing the exception?
– Symon
Dec 31 '18 at 15:11
Line 26 when server is supposed to start.
– LordRed
Dec 31 '18 at 15:20
Line 26 when server is supposed to start.
– LordRed
Dec 31 '18 at 15:20
Here is MSDN reference for using
TcpListener just as a reference. -- Firstly, I would hope that isn't your actual IP given in the question, and if it is, I recommend changing it (within the question) for security. Then , I would verify if anything is already running on port 8080. Have you tried different ports?– Symon
Dec 31 '18 at 15:35
Here is MSDN reference for using
TcpListener just as a reference. -- Firstly, I would hope that isn't your actual IP given in the question, and if it is, I recommend changing it (within the question) for security. Then , I would verify if anything is already running on port 8080. Have you tried different ports?– Symon
Dec 31 '18 at 15:35
I tried to change ports but its saying that ip its not valid for some reason but when i start it from local ipv4 address with same port it works.
– LordRed
Dec 31 '18 at 17:03
I tried to change ports but its saying that ip its not valid for some reason but when i start it from local ipv4 address with same port it works.
– LordRed
Dec 31 '18 at 17:03
It is working only with local ip.
– LordRed
Dec 31 '18 at 17:54
It is working only with local ip.
– LordRed
Dec 31 '18 at 17:54
add a comment |
1 Answer
1
active
oldest
votes
The error message The requested address is not valid in its context means that the IP address you have used is not tied to any network interface on your machine.
You typically don't want to hard-code a specific IP address that you listen to (e.g. if your machine get's it IP through DHCP it could change).
Better way is to use IPAddress.Any to listen on all IP addresses (i.e. network interface) available on the machine.
answered Jan 2 at 9:57
johlojohlo
4,65811128
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The error message The requested address is not valid in its context means that the IP address you have used is not tied to any network interface on your machine.
You typically don't want to hard-code a specific IP address that you listen to (e.g. if your machine get's it IP through DHCP it could change).
Better way is to use IPAddress.Any to listen on all IP addresses (i.e. network interface) available on the machine.
answered Jan 2 at 9:57
johlojohlo
4,65811128
add a comment |
The error message The requested address is not valid in its context means that the IP address you have used is not tied to any network interface on your machine.
You typically don't want to hard-code a specific IP address that you listen to (e.g. if your machine get's it IP through DHCP it could change).
Better way is to use IPAddress.Any to listen on all IP addresses (i.e. network interface) available on the machine.
answered Jan 2 at 9:57
johlojohlo
4,65811128
add a comment |
The error message The requested address is not valid in its context means that the IP address you have used is not tied to any network interface on your machine.
You typically don't want to hard-code a specific IP address that you listen to (e.g. if your machine get's it IP through DHCP it could change).
Better way is to use IPAddress.Any to listen on all IP addresses (i.e. network interface) available on the machine.
answered Jan 2 at 9:57
johlojohlo
4,65811128
The error message The requested address is not valid in its context means that the IP address you have used is not tied to any network interface on your machine.
You typically don't want to hard-code a specific IP address that you listen to (e.g. if your machine get's it IP through DHCP it could change).
Better way is to use IPAddress.Any to listen on all IP addresses (i.e. network interface) available on the machine.
answered Jan 2 at 9:57
johlojohlo
4,65811128
answered Jan 2 at 9:57
johlojohlo
4,65811128
answered Jan 2 at 9:57
johlojohlo
4,65811128
answered Jan 2 at 9:57
johlojohlo
4,65811128
4,65811128
add a comment |
add a comment |
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What line is throwing the exception?
– Symon
Dec 31 '18 at 15:11
Line 26 when server is supposed to start.
– LordRed
Dec 31 '18 at 15:20
Here is MSDN reference for using
TcpListenerjust as a reference. -- Firstly, I would hope that isn't your actualIPgiven in the question, and if it is, I recommend changing it (within the question) for security. Then , I would verify if anything is already running onport 8080. Have you tried different ports?– Symon
Dec 31 '18 at 15:35
I tried to change ports but its saying that ip its not valid for some reason but when i start it from local ipv4 address with same port it works.
– LordRed
Dec 31 '18 at 17:03
It is working only with local ip.
– LordRed
Dec 31 '18 at 17:54