Journal of Computer Science and Technology

, Volume 16, Issue 6, pp 544–551 | Cite as

Active network supports for mobile IP

  • Lu Yueming Email author
  • Qian Depei 
  • Xu Bin 
  • Wang Lei 


The basic mobile IP protocol is difficult to implement on the traditional IP network and not flexible and efficient under certain conditions. For example, firewalls or boundary routers may drop packets sent by mobile nodes for security reasons. Traditional networking devices such as routers cannot dynamically load and unload extended services to achieve different qualities of services. In this paper, a new scheme of using the active network to support the mobile IP is presented. The Softnet, a prototype of active networks based on mobile agents, is introduced. The active network is characterized by the programmability of its intermediate nodes and therefore presents dynamic and flexible behaviors. Special services can be dynamically deployed onto the active nodes in the Softnet. This property is definitely required in implementing the mobile IP protocols. The Softnet supports not only the basic mobile IP protocol but also other extended mobile IP protocols. Virtual networks for mobile IP services are dynamically formed by mobile agents in the Softnet to provide different qualities of services.


mobile IP Softnet active network mobile agent virtual network 


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Copyright information

© Science Press, Beijing China and Allerton Press Inc. 2001

Authors and Affiliations

  • Lu Yueming 
    • 1
    Email author
  • Qian Depei 
    • 1
  • Xu Bin 
    • 1
  • Wang Lei 
    • 1
  1. 1.Department of Computer Science and EngineeringXi’an Jiaotong UniversityXi’anP.R. China

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