Subject: [mobile-ip] Mobile IP Query

From: Ashoke Saha <[email-masked]>
Date: Mon, 30 Dec 2002 12:05:08 +0530

Hi,

I am ashoke and new to Mobile IP. I went through the RFC 3344 and have a
question regarding Foreign Agent. 

Under Foreign agent care of address when a mobile node moves under a foreign
agent it retains its home ip address which is different from the ip address
of the interface of FA where mobile node is connected. so its like 

                  --------------------------------
                 |                               |
                 |              FA             |
                 |                               |
                 --------------------------------
                               |  10.10.10.10
                               |
                               |
                               | 20.20.20.20
                      ----------------------
                     |                      |
                     | mobile node   |
                     |                     |
                     -----------------------

Now do we expect ARP to work in that interface and packets go thru (they
have different IP address) and so typically a machine 
should not ARP for a different subnet ?

Regards

ashoke saha