NDP DoS attack (was Re: Anybody can participate in the IETF (Was: Why is IPv6 broken?))

[jared at puck.nether.net (Jared Mauch)]

On Jul 14, 2011, at 10:06 PM, Fernando Gont <fernando at gont.com.ar> wrote:

>> It should be possible to mitigate this, so long as the attack does not actually
>> originate from a neighbor on the same subnet as a router  IP interface on
>> an IPv6 subnet with sufficient number of IPs.
> 
> Well, unless there's some layer-2 anti-spoofing mitigation in place,
> with /64 subnets the "local attacker" typically *will* have enough
> addresses.

Solving a local attack is something I consider different in scope than the current draft being discussed in 6man, v6ops, ipv6@ etc...

Anyone on a layer-2 network can do something interesting like flood all f's and kill the lan. Trying to keep the majority of thoughts here for layer-3 originated attacks, even if the target is a layer2 item.

- Jared