RFC 8445 — Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal

Publisher

RFC Editor / Internet Engineering Task Force

URL

https://www.rfc-editor.org/rfc/rfc8445.txt

Published

2018-07

Updated

unknown

Accessed

2026-09-16

HTTP status

200

License

IETF Trust legal provisions; permitted

Source notes citing this source

• RFC 8445 excludes deprecated IPv4-compatible IPv6 addresses and IPv6 site-local unicast addresses from host candidates, and says IPv4-mapped IPv6 addresses SHOULD NOT be included unless the application does not support IPv4. in context
• RFC 8445 says a dual-stack ICE agent SHOULD set candidate local preference according to the best practice in RFC 8421. in context
• RFC 8445 allows an IPv6-only ICE agent on a network with NAT64 and DNS64 to gather IPv4 server-reflexive or relayed candidates from IPv4-only STUN or TURN servers, and says it SHOULD use IPv6 prefix discovery to learn the NAT64 prefix. in context
• RFC 8445 (July 2018) is the current ICE specification and obsoletes RFC 5245. in context
• RFC 8445 of July 2018 is the current Interactive Connectivity Establishment specification and its own header records that it obsoletes RFC 5245. in context

Cite this source record

APA

WarmTransfer. (n.d.). RFC 8445 — Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal. WarmTransfer. https://warmtransfer.net/knowledge/sources/rfc-8445-ice

BibTeX

@misc{warmtransfer-rfc-8445-ice,
  title  = {RFC 8445 — Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal},
  author = {{WarmTransfer}},
  year   = {2018},
  url    = {https://warmtransfer.net/knowledge/sources/rfc-8445-ice},
  note   = {RFC Editor / Internet Engineering Task Force, accessed 2026-09-16}
}