> I suppose the same might be true of ARP. Has it been observed in the wild?
Suppose a simple attack of:
For each address A in subnet,
Compose packet with source=local and dest=A
Send packet to router
In a typical IPv4 subnet, the loop will run 255 times. In a very large one, a
few thousand times. In an IPv6 subnet, the loop will run 2^64 times, and the
effect on the neighbor cache on the router could be interesting.
On the other hand, there are many ways for a local host to DOS a local router.
I am not sure that this specific one is particularly practical, or worrisome.
-- Christian Huitema
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