Cisco Cisco Packet Data Gateway (PDG) Fehlerbehebungsanleitung
GRE Protocol Interface
▀ GRE Interface Configuration
▄ Cisco ASR 5000 Series Enhanced Feature Configuration Guide
OL-22983-01
GRE Interface Configuration
This section provides a high-level series of steps and the associated configuration examples for configuring the system
with GRE interface in GGSN services.
with GRE interface in GGSN services.
Important:
This section provides the minimum instruction set to enable the GRE Protocol Interface support
functionality on GGSN in UMTS network. Commands that configure additional function for this feature are provided in
the Command Line Interface Reference.
the Command Line Interface Reference.
These instructions assume that you have already configured the system level configuration as described in System
Administration Guide and specific product Administration Guide.
Administration Guide and specific product Administration Guide.
To configure the system to support GRE tunnel interface:
Step 1
Configure the virtual routing and forwarding (VRF) in a context by applying the example configurations presented in
the
the
Step 2
Configure the GRE tunnel interface in a context by applying the example configurations presented in the
Step 3
Enable OSPF for the VRF and for the given network by applying the example configurations presented in the
Step 4
Associate IP pool and AAA server group with VRF by applying the example configurations presented in the
Step 5
Associate APN with VRF through AAA server group and IP pool by applying the example configurations presented in
the
the
Step 6
Optional. If the route to the server is not learnt from the corporate over OSPFv2, static route can be configured by
applying the example configurations presented in the
applying the example configurations presented in the
Step 7
Save the changes to system configuration by applying the example configuration given in Verifying and Saving Your
Configuration chapter.
Configuration chapter.
Step 8
Verify configuration of GRE and VRF related parameters by applying the commands provided in the Verifying Your
Configuration section of this chapter.
Configuration section of this chapter.
Virtual Routing And Forwarding (VRF) Configuration
This section provides the configuration example to configure the VRF in a context: