Cisco Cisco Packet Data Interworking Function (PDIF) プリント
Introduction to IP Security (IPSec)
▀ Overview
▄ Cisco StarOS IP Security (IPSec) Reference
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Figure 1.
IPSec Applications
Mobile IP: Mobile IP (MIP) control signals and subscriber data is encapsulated in IPSec tunnels that are
established between foreign agents (FAs) and home agents (HAs) over the Pi interfaces.
Important:
Once an IPSec tunnel is established between an FA and HA for a particular subscriber, all
new Mobile IP sessions using the same FA and HA are passed over the tunnel regardless of whether or not
IPSec is supported for the new subscriber sessions. Data for existing Mobile IP sessions is unaffected.
IPSec is supported for the new subscriber sessions. Data for existing Mobile IP sessions is unaffected.
L2TP: L2TP-encapsulated packets are routed from the system to an LNS/secure gateway over an IPSec tunnel.
Note that: IPSec can be implemented for both attribute-based and compulsory tunneling applications for 3GPP2
services.
services.