Name: draft-daley-magma-smld-prob-00
Title: Trust Models and Security in Multicast Listener Discovery
State: Active
Authors: Greg Daley, Gopi Kurup
Group: Individual Submissions (none)
Date: 2004-07-12
The Multicast Listener Discovery (MLD) is used by IPv6 routers to discover
the presence of multicast listeners (i.e. nodes that wish to receive
multicast packets) on their directly attached links, and to discover which
multicast addresses are of interest to those neighbouring nodes. The
existing protocol specification (MLDv2) discusses the effects of on-link
forgery of MLD packets but provides no protection from on-link attacks. By
taking advantage of or abusing Multicast Listener Discovery, bogus devices
may cause incorrect state and disruption to multicast or unicast packet
delivery. This memo considers the trust models for the MLD protocols, and
their interaction as well as their interaction with link-layer and
multicast proxy devices. It provides a security and threat analysis for
each model.
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