Le 28/03/2012 00:24, Brian E Carpenter a écrit :
On 2012-03-28 06:46, Alexandru Petrescu wrote: ...
In lightweight environments, and this is a MIF-ed router not host,
it would only run DHCP and maybe no ND
You can't conform to IPv6 and not run ND.
Brian,
Allow me a quick reply here. There are several active RFC proposals
recent at IETF that simply don't run ND. Or, how to better say - if ND
is present it is completely ignored, being replaced by something else
claimed better than ND for some issue at hand.
This is the case for example in the RoLL (RPL protocol), 6lowpan (IPv6
over header compression) and more. If I understand correctly, CoAP
considers the sensor node to be an 'IPv6 node' but not necessarily run
ND. If it did, then ICMP could be used without intermediary, instead of
CoAP.
ND relies on a very good notion of a link, subnet, whereas in these
spaces this notion is totally absent, routers have only one interface
and so forth.
Somebody said that if node is not implementing ICMPv6
Redirect then it wouldnt't be accepted as an IPv6 node.
These are points about which I could agree. At the same time the
protocols that appear to be ignoring ND makes wonder about this
IPv6 conformity aspect.
Alex
In answer to your original question: no. KISS. Don't overload DHCPv6
with a function that is part of IPv6's basic mechanism (i.e. ND).
Brian
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