CODEWITHSUNDEEP
c#.netvisual-studio
user3548808
user3548808

Reputation: 103

Find Port number

I have IP address of a specific device which opens TCP listener. (But in documentation I can not find default port number.)

Is there any way to find which port number does the device open for connection ?

System.Net.Sockets.TcpClient client = new System.Net.Sockets.TcpClient(); client.Connect(ipAddress, port);

Upvotes: 0

Views: 777

Answers (2)

Wolfgang Feneberg
Wolfgang Feneberg

Reputation: 236

Use a port scanner like https://www.heise.de/download/product/portscan-70308 to scan for open ports.

Upvotes: 2

Scott Perham
Scott Perham

Reputation: 2470

In a word, no.

Unless it is using a known protocol it could be anything between 1024 and 65535. There is no "default" unless it's officially been given a designation by the IANA.

Upvotes: 2

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