IP Flow Anonymization Support (RFC6235)
Original Publication Date: 2011-May-01
Included in the Prior Art Database: 2011-May-14
Internet Society Requests For Comment (RFCs)
E. Boschi: AUTHOR [+2]
The standardization of an IP Flow Information Export (IPFIX) protocol [RFC5101] and associated representations removes a technical barrier to the sharing of IP flow data across organizational boundaries and with network operations, security, and research communities for a wide variety of purposes. However, with wider dissemination comes greater risks to the privacy of the users of networks under measurement, and to the security of those networks. While it is not a complete solution to the issues posed by distribution of IP flow information, anonymization (i.e., the deletion or transformation of information that is considered sensitive and that could be used to reveal the identity of subjects involved in a communication) is an important tool for the protection of privacy within network measurement infrastructures.
Internet Engineering Task Force (IETF) E. Boschi Request for Comments: 6235 B. Trammell Category: Experimental ETH Zurich ISSN: 2070-1721 May 2011
IP Flow Anonymization Support
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.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for examination, experimental implementation, and evaluation.
This document defines an Experimental Protocol for the Internet community. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6235.
Trammell Experimental [Page 1]
RFC 6235 IP Flow Anonymization Support May 2011
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Table of Contents
1. Introduction ....................................................4
1.1. IPFIX Protocol Overview ...........................