First-Hop Router Selection by Hosts in a Multi-Prefix Network (RFC8028)
Original Publication Date: 2016-Nov-01
Included in the Prior Art Database: 2016-Nov-29
Internet Society Requests For Comment (RFCs)
F. Baker: AUTHOR [+1]
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Internet Engineering Task Force (IETF) F. Baker Request for Comments: 8028 Updates: 4861 B. Carpenter Category: Standards Track Univ. of Auckland ISSN: 2070-1721 November 2016
First-Hop Router Selection by Hosts in a Multi-Prefix Network
This document describes expected IPv6 host behavior in a scenario
that has more than one prefix, each allocated by an upstream network
that is assumed to implement BCP 38 ingress filtering, when the host
has multiple routers to choose from. It also applies to other
scenarios such as the usage of stateful firewalls that effectively
act as address-based filters. Host behavior in choosing a first-hop
router may interact with source address selection in a given
implementation. However, the selection of the source address for a
packet is done before the first-hop router for that packet is chosen.
Given that the network or host is, or appears to be, multihomed with
multiple provider-allocated addresses, that the host has elected to
use a source address in a given prefix, and that some but not all
neighboring routers are advertising that prefix in their Router
Advertisement Prefix Information Options, this document specifies to
which router a host should present its transmission. It updates RFC
Status of This Memo
This is an Internet Standards Track document.
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 Internet Standards is available in Section 2 of RFC 7841.
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/rfc8028.
Baker & Carpenter Standards Track [Page 1]
RFC 8028 Router Selection in a Multi-Prefix Network November 2016
Copyright (c) 2016 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 (http://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 to this document. Code Components extracted from this document must include Simplified...