Daniel Ng wrote:

> RFC 3128 described the way to attack IPv4 network 
> using tiny fragment. Can the same thing happen to 
> IPv6 network?


It would seem so, IPv6 fragment headers can also be
forged to overlap each other. And I can't find anything
in RFC 2460 to forbid this.

The same cure as described in RFC 3128 would also apply.
But filtering mechanisms must take in account the additional
complication of the unfragmentable part i.e. hop-by-hop
headers and such.

Jari



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