System and method for providing secure mobility and internet...

Details System and method for providing secure mobility and internet... System and method for providing secure mobility and internet...

2005-12-27

2011-10-04

Ferris, Derrick (Department: 2463)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

Reexamination Certificate

active

08031672

ABSTRACT:
A method for connection roaming a Mobile Node (MN) to a Network GateWay (NGW) for providing secure data path using Internet Protocol (IP) security procedure. Also Mobile IP (MIP) is required for providing mobility to the user, when the MN moves from one sub-network to another. However, when the Home Address of the network is not known, a cyclic interdependency is observed between the IP Security (Ipsec) procedures and IP procedures. If the home address of the MN is not known initially during the procedure, IPsec Security Associations (SA's) are formed between the MN and NGW such that only IP packets are passed through. After the IP Registration is completed, the Home Address of the MN is known from the MIP registration Reply. MN now forms a data path tunnel with the NGW by exchanging Create_Child_SA messages.

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