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This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next ... Protocol Number Keyword ... UDP User Datagram Protocol: RFC ...
A number of UDP's attributes make it especially suited for certain applications. It is transaction-oriented, suitable for simple query-response protocols such as the Domain Name System or the Network Time Protocol. It provides datagrams, suitable for modeling other protocols such as IP tunneling or remote procedure call and the Network File System.
This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The (TCP) and the (UDP) only need one for , bidirectional traffic. The (TCP) and the (UDP) only need one for , bidirectional traffic.
The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP), and the Internet ...
The most common transport protocols that use port numbers are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP); those port numbers are 16-bit unsigned numbers. A port number is always associated with a network address of a host, such as an IP address, and the type of transport protocol used for communication. It ...
local socket address, consisting of the local IP address and (for TCP and UDP, but not IP) a port number; protocol: A transport protocol, e.g., TCP, UDP, raw IP. This means that (local or remote) endpoints with TCP port 53 and UDP port 53 are distinct sockets, while IP does not have ports.
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
Internet Key Exchange (IKE) – User Datagram Protocol (UDP) port 500; Encapsulating Security Payload (ESP) – IP protocol number 50; Authentication Header (AH) – IP protocol number 51; IPsec NAT traversal – UDP port 4500, if and only if NAT traversal is in use; Many routers provide explicit features, often called IPsec Passthrough.