NDLI: Compact neighbor discovery: a bandwidth defense through bandwidth optimization

Content Provider	IEEE Xplore Digital Library
Author	Mutaf, P. Castelluccia, C.
Copyright Year	2005
Description	Author affiliation: INRIA, France (Mutaf, P.; Castelluccia, C.)
Abstract	We present a stateless defense against the neighbor discovery denial-of-service (ND-DoS) attack in IPv6. The ND-DoS attack consists of remotely flooding a target subnet with bogus packets destined for random interface identifiers; a different one for each malicious packet. The 128-bit IPv6 address reserves its 64 low-order bits for the interface ID. Consequently, the malicious packets are very likely to fall on previously unresolved addresses and the target access router (or leaf router) is obligated to resolve these addresses by sending neighbor solicitation packets. Neighbor solicitation packets are link layer multicast (or broadcast), and hence also forwarded by bridges. As a consequence, the attack may consume important bandwidth in subnets with wireless bridges, or access points. This problem is particularly important in the presence of mobile IPv6 devices that expect incoming sessions from the Internet. In this case, address resolution is crucial for the access router to reliably deliver incoming sessions to idle mobile devices with unknown MAC addresses. We propose a novel neighbor solicitation technique using Bloom filters. Multiple IPv6 addresses (bogus or real) that are waiting in the access router's address resolution queue are compactly represented using a Bloom filter. By broadcasting a single neighbor solicitation message that carries the Bloom filter, multiple IPv6 addresses are concurrently solicited. Legitimate neighbor solicitation triggering packets are not denied service. An on-link host can detect its address in the received Bloom filter and return its MAC address to the access router. A bandwidth gain around 40 can be achieved in all cells of the target subnet. This approach that we call compact neighbor discovery (CND) is the first bandwidth DoS defense that we are aware of to employ a bandwidth optimization.
Starting Page	2711
Ending Page	2719
File Size	1805266
Page Count	9
File Format	PDF
ISBN	0780389689
ISSN	0743166X
DOI	10.1109/INFCOM.2005.1498554
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Computer crime Internet Neodymium Broadcasting Bridges Information filtering Information filters IP networks Routing
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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