Proxy Mobile IPv6: Technology Overview
Functional Entities
The PMIPv6 architecture defines following functional entities:
- Local Mobility Anchor (LMA)
- Mobile Access Gateway (MAG)
- Mobile Node (MN)
- Correspondent Node (CN)
Messaging Call Flows
Protocol Operation
- A mobile host enters a PMIP domain
- A Mobile Access Gateway on that link checks host authorization
- A mobile host obtains an IP address
- A Mobile Access Gateway updates a Local Mobility Anchor about the current location of a host
- Both MAG and LMA create a bi-directional tunnel
- A Mobile Access Gateway sends an Router Advertise message to MN with Care-of-Address
Access Authentication
- access authentication and mobile node's identity
- mobile node's policy profile
- MAG and Authenticator Collocation
Security Considerations
- Control Plane Security
- Data Plane Security
Address Assignment
- IPv4 Address Assignment over DHCPv4
- Stateless Autoconf for IPv6
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