What are the services of UDP?

Following implementations uses UDP as a transport layer protocol:

• NTP (Network Time Protocol)
• DNS (Domain Name Service)
• BOOTP, DHCP.
• NNP (Network News Protocol)
• Quote of the day protocol.
• TFTP, RTSP, RIP.

What are the main features of UDP?

Features

• UDP is used when acknowledgement of data does not hold any significance.
• UDP is good protocol for data flowing in one direction.
• UDP is simple and suitable for query based communications.
• UDP is not connection oriented.
• UDP does not provide congestion control mechanism.

How do I setup a UDP server?

In UDP, the client does not form a connection with the server like in TCP and instead just sends a datagram….UDP Server :

1. Create a UDP socket.
2. Bind the socket to the server address.
3. Wait until the datagram packet arrives from the client.
4. Process the datagram packet and send a reply to the client.
5. Go back to Step 3.

What is the UDP protocol?

UDP is a part of the Internet Protocol suite, referred to as UDP/IP suite. Unlike TCP, it is an unreliable and connectionless protocol. So, there is no need to establish a connection prior to data transfer.

Is UDP a suitable protocol for multicasting?

It is a suitable protocol for multicasting as UDP supports packet switching. UDP is used for some routing update protocols like RIP (Routing Information Protocol).

What is the range of UDP port numbers?

The first 8 Bytes contains all necessary header information and the remaining part consist of data. UDP port number fields are each 16 bits long, therefore the range for port numbers is defined from 0 to 65535; port number 0 is reserved. Port numbers help to distinguish different user requests or processes.

What is a UDP flood attack?

Since UDP does not require a handshake, attackers can ‘flood’ a targeted server with UDP traffic without first getting that server’s permission to begin communication. A typical UDP flood attack sends a large number of UDP datagrams to random ports on its target computer.