> So, if I see prefix option with L=0 and A=0, it should be totally
> ignored? (and not give the useful semantics to it?).
Yes, such a prefix doesn't carry any semantics for Neighbor discovery
and stateless addrconf purposes.
But I believe Mobile IPv6 defines a 3rd flag for the prefix options (R)
thus one might see prefixes with L=0, A=0, R=1. And there might be
other future additions of flags,
Erik
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