UDP communication is blocked by the Windows Firewall rule
What is the difference between TCP and UDP? - Quora Both TCP/IP (Transmission Control Protocol/Internet Protocol) and UDP (User Datagram Protocol) are Transport Layer Protocols, which means that they are used to send the packets from source to the destination based on the destination IP address. TC The TCP/IP Guide - TCP Connection Establishment Process TCP Connection Establishment Process: The "Three-Way Handshake" (Page 3 of 4) Normal Connection Establishment: The "Three Way Handshake" To establish a connection, each device must send a SYN and receive an ACK for it from the other device. Thus, conceptually, we need to have four control messages pass between the devices.
Even faster connection establishment with QUIC 0-RTT
An UDP client can send "n" number of distinct packets to an UDP server and it could also receive "n" number of distinct packets as replies from the UDP server. Since UDP is connectionless protocol the overhead involved in UDP is less compared to a connection based protocol like TCP.
How is a UDP connection established? - Quora
Accelerating QUIC’s Connection Establishment on High UDP sockets within the same QUIC connection. In detail, we modified quiche’s example client implementation to perform a QUIC handshake through a rust-socks socket. Once the connection establishment using our proposal in a stateless retry connection establishment than … The TCP/IP Guide - TCP Connection Establishment Process TCP Connection Establishment Process: The "Three-Way Handshake" (Page 1 of 4) We have discussed in earlier topics in this section the connection orientation of TCP and its operation. Before TCP can be employed for any actually useful purpose—that is, sending data—a connection must be set up between the two devices that wish to communicate. Even faster connection establishment with QUIC 0-RTT Nov 20, 2019 What is UDP (User Datagram Protocol)?