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This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.
RakNet is a C++ class library that provides UDP and reliable TCP transport. It contains several core systems that rely on the transport layer: object replication; Remote procedure call in C++ using Boost C++ Libraries; VoIP supporting FMOD, DirectSound, and PortAudio; NAT traversal; and Patch. [clarification needed]
TCP uses 16-bit port numbers, providing 65,536 possible values for each of the source and destination ports. [17] The dependency of connection identity on addresses means that TCP connections are bound to a single network path; TCP cannot use other routes that multihomed hosts have available, and connections break if an endpoint's address changes.
A packet-switched network transmits data that is divided into units called packets.A packet comprises a header (which describes the packet) and a payload (the data). The Internet is a packet-switched network, and most of the protocols in this list are designed for its protocol stack, the IP protocol suite.
In computer networking, a port or port number is a number assigned to uniquely identify a connection endpoint and to direct data to a specific service. At the software level, within an operating system, a port is a logical construct that identifies a specific process or a type of network service.
23 TRUNK-1 Trunk-1 0x18 24 TRUNK-2 Trunk-2 0x19 25 LEAF-1 Leaf-1 0x1A 26 LEAF-2 Leaf-2 0x1B 27 RDP Reliable Data Protocol: RFC 908: 0x1C 28 IRTP Internet Reliable Transaction Protocol: RFC 938: 0x1D 29 ISO-TP4 ISO Transport Protocol Class 4 RFC 905: 0x1E 30 NETBLT Bulk Data Transfer Protocol: RFC 998: 0x1F 31 MFE-NSP MFE Network Services ...
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This protocol is used to establish a connection to Transmission Control Protocol (TCP) port number 23 or 2323, where a Telnet server application is listening. [3] [9] [10] The Telnet protocol abstracts any terminal as a Network Virtual Terminal (NVT). The client must simulate a NVT using the NVT codes when messaging the server.