HTTP/2 200 date: Wed, 08 Oct 2025 02:06:54 GMT content-type: application/xml content-encoding: gzip cache-control: public, max-age=3600 cross-origin-opener-policy: same-origin expires: Wed, 08 Oct 2025 03:06:54 GMT referrer-policy: same-origin vary: Cookie, origin, Accept-Encoding x-content-type-options: nosniff x-frame-options: DENY x-resolution-methods: manual;auto;fallback x-resolution-outcomes: ;RfcAdapter: using docid IETF RFC 6235 -> using query @.type == "IETF" && @.primary == true && @.id == "RFC 6235" -> 1 found,; last-modified: Wed, 08 Oct 2025 02:06:54 GMT cf-cache-status: EXPIRED set-cookie: __cf_bm=X_G8BVticImEVc5Bl2KM1zXCEJbfv08kDysX5.tZzwc-1759889214-1.0.1.1-2BJWScK3OIb4NdwUF8yMBoPAZEpJNKwPvZ16uRp_f5uHJeKydiBlgwYCZXTQCfFnqR8L3YP5HmugfXYMIjIeid1JU16cPPMiEa_bQ9dohl0; path=/; expires=Wed, 08-Oct-25 02:36:54 GMT; domain=.ietf.org; HttpOnly; Secure; SameSite=None server: cloudflare cf-ray: 98b214dfbe735ace-BLR alt-svc: h3=":443"; ma=86400 This document describes anonymization techniques for IP flow data and the export of anonymized data using the IP Flow Information Export (IPFIX) protocol. It categorizes common anonymization schemes and defines the parameters needed to describe them. It provides guidelines for the implementation of anonymized data export and storage over IPFIX, and describes an information model and Options- based method for anonymization metadata export within the IPFIX protocol or storage in IPFIX Files. This document defines an Experimental Protocol for the Internet community.