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The range of port numbers from 1024 to 49151 (2 10 to 2 15 + 2 14 − 1) are the registered ports. They are assigned by IANA for specific service upon application by a requesting entity. [ 2 ] On most systems, registered ports can be used without superuser privileges.
Ports with numbers 0–1023 are called system or well-known ports; ports with numbers 1024-49151 are called user or registered ports, and ports with numbers 49152-65535 are called dynamic, private or ephemeral ports. [2] Both system and user ports are used by transport protocols (TCP, UDP, DCCP, SCTP) to identify an application or service.
The registered ports are those from 1024 through 49151. IANA maintains the official list of well-known and registered ranges. [3] The dynamic or private ports are those from 49152 through 65535. One common use for this range is for ephemeral ports.
32768–65535: used by Solaris OS [citation needed] and AIX OS. [citation needed] 1024–65535: RFC 6056 [6] 1025–60000: default of Windows Server 2008 with Exchange Server 2007 installed. [7] In addition to the default range, all versions of Windows since Windows 2000 have the option of specifying a custom range anywhere within 1025–65535 ...
The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite. It originated in the initial network implementation in which it complemented the Internet Protocol (IP). Therefore, the entire suite is commonly referred to as TCP/IP. TCP provides reliable, ordered, and error-checked delivery of a stream of ...
This protocol may be used when several terminals share the same JRE media and take turns transmitting or in a broadcast situation when one transmits and the rest receive. It is targeted to data rates down to 2400 bits per second on a serial data interface with a TSEC/KG-84A/KIV-7 or a compatible encryption device used for data security.
If this source port is already used, PAT assigns the first available port number starting from the beginning of the appropriate port group 0–511, 512–1023, or 1024–65535. When there are no more ports available and there is more than one external IP address configured, PAT moves to the next IP address to try to allocate the original source ...
The RTP and RTCP design is independent of the transport protocol. Applications most typically use UDP with port numbers in the unprivileged range (1024 to 65535). [15] The Stream Control Transmission Protocol (SCTP) and the Datagram Congestion Control Protocol (DCCP) may be used when a reliable transport protocol is desired. The RTP ...