The requested address is not valid in its context ... IpAddress

[ghost1]

I'm wanting to use an app.config file to set the port and IpAddress for a custom server. The problem is that I can't seem to get the Ip into the program.

Here is my code...

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="port" value="500" />
<add key="ipadd" value ="173.31.1.125" />
</appSettings>
</configuration>

here is how I am trying to use it....

System.Net.IPAddress localhost = System.Net.IPAddress.Parse(System.Configuration.Co nfigurationSettings.AppSettings["ipadd"]);
localhost.Start();


Here is the error....
The requested address is not valid in its context

What do I need to do?

[Plater]

ipaddress doesn't have a .Start() function to it, what are you trying to use it for?

[ghost1]

Sorry Forgot some of the code it should be:

System.Net.IPAddress localhost= System.Net.IPAddress.Parse(System.Configuration.Co nfigurationSettings.AppSettings["ipadd"]);
TCPListener MyListener = new TCPListener(localhost,port);
MyListener.Start();

Sorry ... rough day at work...brain freeze.

[Plater]

Unless you are doing something a bit sneakier, generally for listener devices("servers") you would want to use IPAny (I think it's IPAddress.Any, it's static, should be easy to find).
As to your error, I'm lost on that one, unless it's not comming back as a correct string?

EDIT: Actually I'm fairly certain that you can't "pick" an address like that to listen on. (If that is the computer's IP address I would think it would work but unsure)