Cisco Cisco Packet Data Gateway (PDG) Guía Para Resolver Problemas
Mobile IP Configuration Examples
▀ Example 1: Mobile IP Support Using the System as a PDSN/FA
▄ Cisco ASR 5000 Series Packet Data Serving Node Administration Guide
OL-22939-01
Example 1: Mobile IP Support Using the System as a PDSN/FA
The system supports both Simple and Mobile IP. For Mobile IP applications, the system can be configured to perform
the function of a Packet Data Serving Node/Foreign Agent (PDSN/FA) and/or a Home Agent (HA). This example
describes what is needed for and how the system performs the role of the PDSN/FA. Examples 2 and 3 provide
information on using the system to provide HA functionality.
the function of a Packet Data Serving Node/Foreign Agent (PDSN/FA) and/or a Home Agent (HA). This example
describes what is needed for and how the system performs the role of the PDSN/FA. Examples 2 and 3 provide
information on using the system to provide HA functionality.
The system‘s PDSN/FA configuration for Mobile IP applications is best addressed with three contexts (one source, one
AAA, and one Mobile IP destination) configured as shown in the figure below.
AAA, and one Mobile IP destination) configured as shown in the figure below.
Important:
A fourth context that serves as a destination context must also be configured if Reverse
Tunneling is disabled in the FA service configuration. Reverse Tunneling is enabled by default.
The source context will facilitate the PDSN service(s), and the R-P interfaces. The AAA context will be configured to
provide foreign AAA functionality for subscriber sessions and facilitate the AAA interfaces. The MIP destination
context will facilitate the FA service(s) and the Pi interface(s) from the PDSN/FA to the HA.
provide foreign AAA functionality for subscriber sessions and facilitate the AAA interfaces. The MIP destination
context will facilitate the FA service(s) and the Pi interface(s) from the PDSN/FA to the HA.
The optional destination context will allow the routing of data from the mobile node to the packet data network by
facilitating a packet data network (PDN) interface. This context will be used only if reverse tunneling was disabled.
facilitating a packet data network (PDN) interface. This context will be used only if reverse tunneling was disabled.