Issues with isc-dhcp-client6

[Musab Isah]

Hi,

I am setting up a testbed to run MIPv6 and trying to configure my home 
and foreign networks in such a way that mobile nodes receives their 
address configuration using dhcp6. I am able to achieve this to some 
extent but having some issues which I cannot explain.

When the mobile node first boots in home network, it gets the IPv6 
address 2001:470:.... while in foreign network it gets 2a01:348:.... But 
when I get back to home network and go back to foreign network, the IP 
with 2001 is still maintained although the network manager shows that I 
am connected to the foreign link. If I issue 'dhclient -6 wlan0' command 
the client send a confirm message for the home address to the foreign 
link and the reply from my dhcp server confirms the address. If I ping 
any ipv6 websites I can see the packets on the foreign access router 
using the home address as source/destination.

Note that I did not yet start UMIP MIPv6 program implementation, which I 
intend to use, although I have recompile the kernel to enable MIPv6.

Hopefully somebody can guide me through this.

Regards,

Musab