Forwarded HTTP Extension
RFC 7239, “Forwarded HTTP Extension”, is a Proposed Standard document published in June 2014 by A. Petersson, M. Nilsson. The canonical text is published by the RFC Editor.
Abstract
This document defines an HTTP extension header field that allows proxy components to disclose information lost in the proxying process, for example, the originating IP address of a request or IP address of the proxy on the user-agent-facing interface. In a path of proxying components, this makes it possible to arrange it so that each subsequent component will have access to, for example, all IP addresses used in the chain of proxied HTTP requests.
This document also specifies guidelines for a proxy administrator to anonymize the origin of a request.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7239 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 7238 The Hypertext Transfer Protocol Status Code 308
- RFC 7240 Prefer Header for HTTP
- RFC 7237 Initial Hypertext Transfer Protocol Method Registrations
- RFC 7241 The IEEE 802/IETF Relationship
- RFC 7236 Initial Hypertext Transfer Protocol Authentication Scheme Registrations
- RFC 7242 Delay-Tolerant Networking TCP Convergence-Layer Protocol
- RFC 7235 Hypertext Transfer Protocol : Authentication
- RFC 7243 RTP Control Protocol Extended Report Block for the Bytes Discarded Metric