IP and Port

[Xarky]

Hi,
I am writing a program using the TcpListener class. How can I get a
random unused port and the ip of my local host machine.


Thanks in Advance

 

[Guest]

to get a random unused port, try to use the Random Class to generate a number
up to 2500 or 3000


Tom.

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Just pass a 0 as the port number in the constructor.

Cheers,

 

[Xarky]

Hi,
First of all thanks for all the help already given. Please can
someone tell what method should I use to get the ip of my machine.

Also, having an ip stored in a string, how can I convert it to the
object IPAddress.



Thanks in Advance

 

[Xarky]

Hi,
Sorry for asking too many questions. I am doing the as follows.
Now how can I get the port number that was assigned.

TcpListener tcp = new TcpListener(0); // need to get random
port


Thanks for your patience

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

((IPEndPoint)TcpListener.LocalEndPoint).Port

Cheers,

 

[Michael Voss]

Xarky wrote:

[...snip...]

Please can
someone tell what method should I use to get the ip of my machine.

I got it somewhat like

IPAddress[] addressArray = Dns.Resolve(Dns.GetHostName()).AddressList;
IPAddress myLocalAddress = addressArray[0];

which requires access to a DNS-Server, I think.