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Mitigating Neighbor Discovery Based Denial of Service Attacks

Document Type Expired Internet-Draft (individual)
Expired & archived
Author Joel M. Halpern
Last updated 2012-04-19 (Latest revision 2011-10-17)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


It has been observed that with the large space of IPv6 addresses within a subnet, remote attackers can send packets that saturate a rotuers ND cache, and potentially saturate a subnet with ND Soliciation messages as well. Some operational techniques and small protocol adjustments have been proposed that can help alleviate this problem. This draft proposes a slightly more drastic optional behavior for routers, which can nearly eliminate this problem.


Joel M. Halpern

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)