BGP Operations and Security (RFC7454)
Original Publication Date: 2015-Feb-01
Included in the Prior Art Database: 2015-Feb-19
Internet Society Requests For Comment (RFCs)
J. Durand: AUTHOR [+3]
The Border Gateway Protocol (BGP), specified in RFC 4271 , is the protocol used in the Internet to exchange routing information between network domains. BGP does not directly include mechanisms that control whether the routes exchanged conform to the various guidelines defined by the Internet community. This document intends to both summarize common existing guidelines and help network administrators apply coherent BGP policies.
Internet Engineering Task Force (IETF) J. Durand Request for Comments: 7454 Cisco Systems, Inc. BCP: 194 I. Pepelnjak Category: Best Current Practice NIL ISSN: 2070-1721 G. Doering SpaceNet February 2015
BGP Operations and Security
The Border Gateway Protocol (BGP) is the protocol almost exclusively used in the Internet to exchange routing information between network domains. Due to this central nature, it is important to understand the security measures that can and should be deployed to prevent accidental or intentional routing disturbances.
This document describes measures to protect the BGP sessions itself such as Time to Live (TTL), the TCP Authentication Option (TCP-AO), and control-plane filtering. It also describes measures to better control the flow of routing information, using prefix filtering and automation of prefix filters, max-prefix filtering, Autonomous System (AS) path filtering, route flap dampening, and BGP community scrubbing.
Status of This Memo
This memo documents an Internet Best Current Practice.
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). Further information on BCPs is available in 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/rfc7454.
al. Best Current Practice [Page 1]
RFC 7454 BGP OPSEC February 2015
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