TCP Candidates with Interactive Connectivity Establishment (ICE), March 2012
- File formats:
- PROPOSED STANDARD
- J. Rosenberg
B. B. Lowekamp
A. B. Roach
- mmusic (rai)
Discuss this RFC: Send questions or comments to firstname.lastname@example.org
Interactive Connectivity Establishment (ICE) defines a mechanism for NAT traversal for multimedia communication protocols based on the offer/answer model of session negotiation. ICE works by providing a set of candidate transport addresses for each media stream, which are then validated with peer-to-peer connectivity checks based on Session Traversal Utilities for NAT (STUN). ICE provides a general framework for describing candidates but only defines UDP-based media streams. This specification extends ICE to TCP-based media, including the ability to offer a mix of TCP and UDP-based candidates for a single stream. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.