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Hi,
According to RFC 2461, there's a description about
ND on point-to-point links:
point-to-point - Neighbor
Discovery handles such links just
like
multicast links. (Multicast can be trivially provided on point to point links, and interfaces can be assigned link-local addresses.) Neighbor Discovery should be implemented as described in this document. The saying is not explicit enough. Does it mean
it's not mandatory to implement ND on p2p links? If it's not a MUST, what is a
node supposed to do when it receives a NS? Currently, we test against
Juniper's router with p2p link (including PPPoE, PPPoA, and RFC 1483 Route). Our
device sends out NS, but the peer does not send a NA message in response, which
causes some interoperability issues. Besides, on a p2p link, is it mandatory for
a router to send out RA?
Best Regards,
Jessie
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