RFC 6620 · PROPOSED STANDARD · 2012

FCFS SAVI: First-Come, First-Served Source Address Validation Improvement for Locally Assigned IPv6 Addresses

Overview

RFC 6620, “FCFS SAVI: First-Come, First-Served Source Address Validation Improvement for Locally Assigned IPv6 Addresses”, is a Proposed Standard document published in May 2012 by E. Nordmark, M. Bagnulo, E. Levy-Abegnoli. The canonical text is published by the RFC Editor.

Abstract

This memo describes First-Come, First-Served Source Address Validation Improvement (FCFS SAVI), a mechanism that provides source address validation for IPv6 networks using the FCFS principle. The proposed mechanism is intended to complement ingress filtering techniques to help detect and prevent source address spoofing. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

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.

Read this RFC

The canonical text of RFC 6620 is hosted at rfc-editor.org. Available in TXT,HTML.

Other RFCs from 2012

Who Is Online

In total there are 51 users online: 0 registered, 43 guests and 8 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: AhrefsBot Applebot Bingbot Facebook Majestic Other Bot Other Crawler SemrushBot

Users active in the past 15 minutes. Total registered members: 354