socket to use for TCP/IP

[dschless]

How do I know what socket to use when I call
TCPIP::255.255.255.255::xxxx::SOCKET?

Derek

[Jeremy_L]

Hi Derek,

You have an option on that last section to use either "socket" or "instr". The difference is instr specifies that you are connecting to something using the TCP/IP instrument protocol, while socket just exposes the raw network socket connection. You, as a programmer, do not have to specify the socket number. All you should have to do is specify if this is a socket connection or a instr connection.

Here's a link to a helpful knowledgebase:
Link

Hope this helps!

Jeremy L.
National Instruments

[dschless]

I'm sorry, I misworded the question. I meant what port do i use in TCPIP::xxx.xxx.xxx.xxx::port::SOCKET?

Derek

[Jeremy_L]

Hi Derek,

This depends on what you are trying to connect to. If you are trying to do a FTP connection, then you probably will use the default FTP port, which is 21. If Telnet, then you will use the default Telnet, which I think is 23 For HTTP, default is port 80. If you are connecting to a non-default application or server, then you need to find out what port the server is listening on to determine which port to connect to. For more defaults, I would google for "default ports" to get a default port list.

Jeremy L.
National Instruments