> > The only problematic case, as far as I can
see, would be ICMPv6 too
> > big messages for path MTU discovery. In this case, however,
we can
> > still update the MTU information gradually; we first update the
MTU
> > information to the intermediate destination stored in the destination
> > addr
> I have a question about whether a NA sent to all-nodes multicast address
> with the solicited bit ON is valid or invalid. Here are excerpts from
the
> RFC.
>
> For destination address in a NA: For solicited advertisements, the
Source
> Address of an invoking Neighbor Solicitation or, if the
