A new Request for Comments is now available in online RFC libraries.
RFC 9234
Title: Route Leak Prevention and Detection
Using Roles in UPDATE and OPEN Messages
Author: A. Azimov,
E. Bogomazov,
R. Bush,
K. Patel,
K. Sriram
Status: Standards Track
Stream: IETF
Date: May 2022
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 12
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-idr-bgp-open-policy-24.txt
URL: https://www.rfc-editor.org/info/rfc9234
DOI: 10.17487/RFC9234
Route leaks are the propagation of BGP prefixes that violate
assumptions of BGP topology relationships, e.g., announcing a route
learned from one transit provider to another transit provider or a
lateral (i.e., non-transit) peer or announcing a route learned from
one lateral peer to another lateral peer or a transit provider. These
are usually the result of misconfigured or absent BGP route filtering
or lack of coordination between autonomous systems (ASes). Existing
approaches to leak prevention rely on marking routes by operator
configuration, with no check that the configuration corresponds to
that of the External BGP (eBGP) neighbor, or enforcement of the two
eBGP speakers agreeing on the peering relationship. This document
enhances the BGP OPEN message to establish an agreement of the
peering relationship on each eBGP session between autonomous systems
in order to enforce appropriate configuration on both sides.
Propagated routes are then marked according to the agreed
relationship, allowing both prevention and detection of route leaks.
This document is a product of the Inter-Domain Routing Working Group of the
IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
memo is unlimited.
This announcement is sent to the IETF-Announce and rfc-dist lists.
To subscribe or unsubscribe, see
https://www.ietf.org/mailman/listinfo/ietf-announce
https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist
For searching the RFC series, see https://www.rfc-editor.org/search
For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk
Requests for special distribution should be addressed to either the
author of the RFC in question, or to [email protected]. Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.
The RFC Editor Team
Association Management Solutions, LLC
_______________________________________________
IETF-Announce mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/ietf-announce
