[rfc-dist] BCP 84, RFC 3704 on Ingress Filtering for Multihomed Networks

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Fri Mar 19 14:52:52 PST 2004


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        BCP 84
        RFC 3704

        Title:      Ingress Filtering for Multihomed Networks
        Author(s):  F. Baker, P. Savola
        Status:     Best Current Practice
        Date:       March 2004
        Mailbox:    fred at cisco.com, psavola at funet.fi
        Pages:      16
        Characters: 35942
        Updates:    2827
        SeeAlso:    BCP 84

        I-D Tag:    draft-savola-bcp38-multihoming-update-03.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3704.txt


BCP 38, RFC 2827, is designed to limit the impact of distributed
denial of service attacks, by denying traffic with spoofed addresses
access to the network, and to help ensure that traffic is traceable
to its correct source network.  As a side effect of protecting the
Internet against such attacks, the network implementing the solution
also protects itself from this and other attacks, such as spoofed
management access to networking equipment.  There are cases when this
may create problems, e.g., with multihoming.  This document describes
the current ingress filtering operational mechanisms, examines
generic issues related to ingress filtering, and delves into the
effects on multihoming in particular.  This memo updates RFC 2827.

This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements.  Distribution of this memo is unlimited.

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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