BMP for BGP Route Leak Detection
draft-gu-grow-bmp-route-leak-detection-00

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Last updated 2018-10-22
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Network Working Group                                              Y. Gu
Internet-Draft                                                 S. Zhuang
Intended status: Standards Track                                  Huawei
Expires: April 25, 2019                                 October 22, 2018

                    BMP for BGP Route Leak Detection
               draft-gu-grow-bmp-route-leak-detection-00

Abstract

   According to RFC7908 [RFC7908], Route leaks refer to case that the
   delivery range of route advertisements is beyond the expected range.
   For many current security protection solutions, the ISPs (Internet
   Service Providers) are focusing on finding ways to detect the
   happening of route leaks.  However, the real-time route leak
   detection if any occurs is important as well.  This document extends
   the BGP Monitoring Protocol (BMP) [RFC7854] to provide a routing
   security scheme suitable for ISPs to detect BGP route leaks within
   their own networks.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 25, 2019.

Gu & Zhuang              Expires April 25, 2019                 [Page 1]
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Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  ISP Route Leak Prevention Methods . . . . . . . . . . . .   3
     2.2.  Challenge of the Current Route Leak Prevention Methods  .   4
   3.  Existing RLD Methods Discussion . . . . . . . . . . . . . . .   4
   4.  BMP Extension for RLD . . . . . . . . . . . . . . . . . . . .   5
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Terminology

   BMP: BGP Monitoring Protocol

   BMS: BGP Monitoring Station

   C2P: Customer to Provider

   ISP: Internet Service Provider

   P2P: Peer to Peer

   RIB: Routing Information Base

   RLD: Route Leak Detection

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2.  Introduction

   RFC 7908 defines "Route Leak" as: A route leak is the propagation of
   routing announcement(s) beyond their intended scope, which can result
   in possible situations such as eavesdropping, device overload, route
   black hole and so on.  More specifically, the intended scope of route
   announcements is usually defined by local route filtering/
   distribution policies within devices.  These policies are designed to
   realise the pair-wise peering business relationships between ASes
   (autonomous systems), which include Customer to Provider (C2P), Peer
   to Peer (Peer to Peer), and Provider to Customer (P2C).  In a C2P
   relationship, the customer pays the provider for traffic sent between
   the two ASes.  In return, the customer gains access to the ASes the
   provider can reach, including those which the provider reaches
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