Transmission Control Protocol
This page provides IP protocol information on the Transmission Control Protocol (TCP) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
TCP is the connection-oriented, reliable byte-stream transport protocol underlying most Internet applications, including the web, email, and file transfer. Linux has a native handler for this IP protocol.
IP Protocol Details
- Name
- Transmission Control Protocol
- Abbreviation
- TCP
- Status
- Active
- IANA Number
- 6
- IANA Keyword
- TCP
- Reference
- Transmission Control Protocol
IP Protocol Status - Active
TCP was originally specified in 1981 and most recently consolidated in RFC 9293 (2022), and is one of the two core Internet transport protocols and remains in universal use.
IP Protocol Network Policy
TCP is used for Web traffic (HTTP/HTTPS), SSH, email, streaming, and all connection-oriented application traffic.