Hiding Transit-Only Networks in OSPF

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Publisher: IETF
Doc Type: Standard
Pages: 13
Abstract: A transit-only network is defined as a network connecting routers only. In OSPF, transit-only networks are usually configured with routable IP addresses, which are advertised in Link State Advertisements (LSAs) but are not needed for data traffic. In addition, remote attacks can be launched against routers by sending packets to these transit-only networks. This document presents a mechanism to hide transit-only networks to speed up network convergence and reduce vulnerability to remote attacks. In the context of this document, 'hiding' implies that the prefixes are not installed in the routing tables on OSPF routers. In some cases, IP addresses may still be visible when using OSPFv2. This document updates RFCs 2328 and 5340. [STANDARDS-TRACK]
Publication Date: 2013-01-01
Status Note: Proposed Standard
DOI: 10.17487/RFC6860
Link: https://doi.org/10.17487/RFC6860
Author(s): Yi Yang
Alvaro Retana
Abhay Roy

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Document Versions — IETF RFC 6860

▶ IETF RFC 6860 (2013-01-01)

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Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 2328 [Active*]
IETF RFC 3101 [Active*]
IETF RFC 5340 [Active*]
IETF RFC 5838 [Active*]

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RFC5837 — RFC5837 EXTERNAL

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doi: 10.17487/RFC6860
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Referenced By

IETF RFC 7404 [Active*]