UDP Ports

[8218]

Is there any way using autoit to write a small script that can check if ports 5060-5069 are open?

[FireFox]

Hi,

UDP is connectionless, and you need a remote server to check if the port is opened.

A response received indicates it's opened, timeout indicates not.

Br, FireFox.

[8218]

Thanks for your reply.

How does that work if firewalls are blocking the packets, but the port is in fact open?

 

[FireFox]

The packet is not sent and timeout occurs.

[8218]

So a timeout either indicates a firewall-blocked packet or that the port is not open. How do I differate between these?

[FireFox]

I would say you can't without testing.

However, with some hope there could be different error codes (of the UDPOpen/Send functions).

Br, FireFox.

[8218]

Thanks for the replies, I will see what I can do

[JLogan3o13]

You can use the Firewall UDF in my signature to check. You could always specifically open the ports, or use the _ListAuthorizedPorts function to display what is open or not.

[8218]

You can use the Firewall UDF in my signature to check. You could always specifically open the ports, or use the _ListAuthorizedPorts function to display what is open or not.

 

Thanks a lot

[8218]

Fast question:

To do this I don't actually have to use UDPSend() right? UDPOpen() should return an error right away if the port is closed, right?

[JLogan3o13]

Try it:

UDPOpen(<IP Address>, <port>, 0)
   If $aArray[0] = 0 Then ; your code here
   ;-Or-
   If @error Then ;your code here