[OPSEC] I-D Action: draft-ietf-opsec-urpf-improvements-00.txt
internet-drafts@ietf.org Fri, 20 April 2018 18:57 UTC
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Date: Fri, 20 Apr 2018 11:57:34 -0700
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Subject: [OPSEC] I-D Action: draft-ietf-opsec-urpf-improvements-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Operational Security Capabilities for IP Network Infrastructure WG of the IETF. Title : Enhanced Feasible-Path Unicast Reverse Path Filtering Authors : Kotikalapudi Sriram Doug Montgomery Jeffrey Haas Filename : draft-ietf-opsec-urpf-improvements-00.txt Pages : 15 Date : 2018-04-20 Abstract: This document identifies a need for improvement of the unicast Reverse Path Filtering techniques (uRPF) [BCP84] for source address validation (SAV) [BCP38]. The strict uRPF is inflexible about directionality, the loose uRPF is oblivious to directionality, and the current feasible-path uRPF attempts to strike a balance between the two [BCP84]. However, as shown in this draft, the existing feasible-path uRPF still has short comings. This document describes an enhanced feasible-path uRPF technique, which aims to be more flexible (in a meaningful way) about directionality than the feasible-path uRPF. It can potentially alleviate ISPs' concerns about the possibility of disrupting service for their customers, and encourage greater deployment of uRPF techniques. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-opsec-urpf-improvements/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-opsec-urpf-improvements-00 https://datatracker.ietf.org/doc/html/draft-ietf-opsec-urpf-improvements-00 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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