# 8.3 Utilizing UDP

The User Datagram Protocol (UDP) operates as a protocol in the Transport Layer, forming a crucial part of the Internet Protocol suite (UDP/IP suite). Unlike TCP, UDP lacks reliability and operates in a connectionless manner, eliminating the need for prior connection establishment before initiating data transmission. 

Similar to the process of establishing a connection with TCP, connecting via UDP involves entering the IP Address and Port Number, as shown in the following screen.

<figure><img src="https://2088440664-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FRl901ujCzyxXKNVGgTDX%2Fuploads%2FCJtGe98GkGiivoDUyUwQ%2Fimage.png?alt=media&#x26;token=615cb28e-b210-4a84-a61e-048043ba307f" alt=""><figcaption><p>UDP port connect</p></figcaption></figure>

Clicking the Connect button prompts the display of a connection progress screen, resembling the presentation observed during the drone connection using TCP.

Upon successful connection, a notification will confirm " **Communication Link Established**," and the top bar of the screen will change to a vibrant green color.