[support] [supprt] How do I get the CN address?

[tony chen]

hello! everyone!


I am wirting a NEPL-like program, but I have a problem about communication
between CN and MN.
The following figure, Time1 and Time2, is the motion I consider.

Time1 :
CN------HA---(Internet)--AR
    │
MR------┘

MR is under the home network, so MR use a home address in the home network
to communicate with CN.

Time2 :
CN------HA--(Internet)--AR
            │
            └--MR
The MR do handover from home network to AR(foreign network), and MR gets a
CoA in foreign network. At the time, MR must tell CN about MR's CoA, so CN
can commucation directly with MR instead of transporting by HA.The quetion
is how do I get CN's address and continue to communicate with CN.

Thanks everybody!
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