Hi Murakami,
It's a good draft and makes a nice support for the MAP mechanism. I would
like to propose some comments on the draft(sorry if they've been discussed
ever). Please check below.
-----------------------------------------------------------------
Section 5.2 Packet Forwarding Behavior on MAP-E BR
Part (b) BR reception of an IPv6 packet
BR derives a CE IPv6 address from
the IPv4 source address or the IPv4 source
address and the source port in the encapsulated
IPv4 packet based on the BMR. If the CE IPv6
address is eqaul to the IPv6 source address in
the received IPv6 packet, BR decapsulates the
IPv4 packet and then forward it via the IPv4
interface.
I have a few questions here.
1. How can the BR get from an IPv6 packet the IPv4 source address or the IPv4
source address and the source port in the encapsulated IPv4 packet?
2. If the received IPv6 packet is a normal one, instead of an IPv4-encapsulated
packet, what will the BR do? That is, dose the BR can act as a normal router?
3. What can cause the inequality between the derived CE IPv6 address and the
IPv6 source address in the received IPv6 packet? And what will BR do with it,
discard it ?
I'm looking forward to your reply~
Best Regards,
Qi Sun
Tsinghua University, Beijing, China
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