On Thu, Feb 07, 2013 at 11:44:22AM +0100, Alexandru Petrescu wrote:
> Also, the implementation of that dropping may not be that
> straightforward as at a quick first sight.
>
> A stack presented with a packet whose dst's leftmost 16bits precisely
> match ff01::/16 should be dropped _only_ if the src of that packet is an
> address which does not belong to that stack (in other words don't
> discard packets originated by stack and addressed to self). ('be liberal
> in what you accept').
>
FreeBSD drops any packets sent to ff01::/16 if they did not originate from the
local host.
http://fxr.watson.org/fxr/source/netinet6/ip6_input.c#L555
Linux currently accept these, regardless of who sent them.
//E
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