At Tue, 28 Jul 2009 10:53:54 +0200,
Francis Dupont <[email protected]> wrote:

>    Out of curiosity, what's the signal back to the sender that his/her
>    packet was dropped??
> 
> => none but if you really want something an unreachable / admin forbidden
> seems not so bad.

The (or one) difficult part is that in case of IPv6 if transport-layer
checksum isn't provided the responder cannot even be sure about the
source address is valid (to which a "signal" would be sent) since IPv6
doesn't have a checksum at the IP layer.

BTW, I agree with you; I oppose to loosening the current restriction.
The lack of IP layer checksum and its implication are one reason for
that.

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.
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