==== Cannot finish this project ====
Due to lack of support and overloaded information, this project is not going further to anywhere. I will have to launch a replacement project later in Oct, 2011 (hopefully). 


=== useful information below ===
=== How to mount image file as disk ===

1. First you need to find out the partitions and the startsector of partitions:

[root@xen rruban]# file rheltest.img
rheltest.img: x86 boot sector, GRand Unified Bootloader (0.94); 
partition 1: ID=0x83, active, starthead 1, startsector 63, 208782 sectors; 
partition 2: ID=0x8e, starthead 0, startsector 208845, 3871665 sectors, code offset 0x48

There are 3 partitions inside the image file. The startsector of each partition is also listed. Boot partition will have start sector 63.
2. Now you need to get the sector size:

[root@xen]fdisk -lu rheltest.img


Disk rheltest.img: 0 MB, 0 bytes 255 heads, 63 sectors/track, 0 cylinders, total 0 sectors 
Units = sectors of 1 * 512 = 512 bytes        
Device Boot             Start         End      Blocks   Id  System 
rheltest.img1   *          63      208844      104391   83  Linux 
rheltest.img2          208845     4080509     1935832+  8e  Linux LVM

The above shows the sector byte size is 512 byte.
3. To calculating the offset: offset = start_sector x sector_byte_size.
The startsector is 63 for the first partition, therefore the first partition offset is: 63x512=32256
4. Finally, to mount the xen image, use:

mount -o loop,offset=32256  test.img /foldername

=== mobile ip's current status ===
  * [[http://blog.philippklaus.de/2011/05/mobile-ipv6/ | current status]]
  * [[http://tools.ietf.org/wg/mip6/index.pyht?sort=3&reverse=1 | RFCs ]] 
  * [[http://www.larsstrand.org/writings/howto/Mobile-IPv6-HOWTO/Mobile-IPv6-HOWTO.html | mobile ip howto ]] another [[http://tldp.org/HOWTO/Mobile-IPv6-HOWTO/mipv6.html| howto]]
  * [[https://wiki.ubuntu.com/IPv6| alternative and howto use linux as ipv6 router]]