Hi Parav,
Please see comments inline.
On 10-04-15 01:55 AM, Parav Pandit wrote:
Hi,
As per RFC 2464, Link local address for Ethernet based interfaces are based on
the EUI-64 (derived from the MAC address).
I have #3 questions based on this.
In this case,
when one Ethernet based host(from its link-local source) tries to ping the other Ethernet based host, it knows the Mac address implicitly (from the Link local address).
1. Why is it required to explicitly do the Neighbor discovery for the
link-local addresses?
RFC 4861 says to do the neighbor discovery even for link-local addresses.
Correct me if my understanding is incorrect.
Address resolution is required even for link-local addresses. Link-local
addresses can be formed with arbitrary IIDs that do not need to be
derived from MAC addresses and more importantly <the IIDs carry no
indication whether they were formed from MAC addresses or not>.
2. Does it mean that in Ethernet networks, interface can have only one
Link-local address? If not then we violate the RFC 2464.
RFC2464 does not have any normative language in this regard. Why do you
think this will violate RFC2464?
3. Does RFC 4941 Privacy extension for autoconf apply to Ethernet interfaces?
Yes. Certainly.
Thanks
Suresh
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