Cisco ASR 5000 Series User Manual

GGSN Support in GPRS/UMTS Wireless Data Services
▀ Features and Functionality - Optional Enhanced Feature Software
▄ Cisco ASR 5000 Series Product Overview
OL-22938-02
Figure 87. IPSec Application
IPSec Tunnel
L2TP
Application
Core service
or HA
Security
Gateway
Packet Data Network
HA
IPSec Tunnel
IPSec Tunnel
LNS/Security
Gateway
Core
service/FA
Core service/LAC
HA/LAC
Mobile IP
Application
PDN Access
Application
Important: For more information on IPSec support, refer IP Security chapter in System Enhanced Feature
Configuration Guide.
IPv6 Support
Native IPv6 support allows for the configuration of interfaces/routes with IPv6 (128 bit) addressing. The increased
address space allows for future subscriber growth beyond what is currently possible in IPv4. Native IPv6 support on the
Gi interface allows support for packets coming from or destined to a mobile over the Gi interface. IPv6 address
assignment is supported from a dynamic or static pool via standard 3GPP attributes. The GGSN can communicate using
Diameter as the transport protocol for Gx to the AAA. Overlapping address space or resource pools are supported if
they are in different VPNs. The VPN subsystem is responsible for the configuration and recovery of IP interfaces and
routes. IP resources are grouped into separate routing domains know as contexts. The VPN subsystem creates and
maintains each context and the resources associated with them. The existing IPv4 model of interface and route
notification will be extended to support IPv6.
This feature allows IPv6 subscribers to connect via the GPRS/UMTS infrastructure in accordance with the following
standards:

Cisco ASR 5000 Series Specifications

General

Brand	Cisco
Model	ASR 5000 Series
Category	Network Router
Language	English