Overlapping Ip Address Pool Support - Cisco ASR 5000 series Product Overview

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Table of Contents

▀ Features and Functionality—Base Software

Cards (PACs) or Packet Service Cards (PSCs)

Overlapping IP Address Pool Support

Overlapping IP Address Pools provides a mechanism for allowing operators to more flexibly support multiple corporate

VPN customers with the same private IP address space without the expensive investments in physically separate routers,

or expensive configurations using virtual routers.

Enhanced Feature Configuration Guide.

Routing Protocol Support

The system's support for various routing protocols and routing mechanism provides an efficient mechanism for ensuring

the delivery of subscriber data packets.

The following routing mechanisms and protocols are supported by the system:

Static Routes: The system supports the configuration of static network routes on a per context basis. Network

routes are defined by specifying an IP address and mask for the route, the name of the interface in the currant

context that the route must use, and a next hop IP address.

Open Shortest Path First (OSPF) Protocol version 2: A link-state routing protocol, OSPF is an Interior

Gateway Protocol (IGP) that routes IP packets based solely on the destination IP address found in the IP packet

header using the shortest path first. IP packets are routed ―as is‖, meaning they are not encapsulated in any

further protocol headers as they transit the network.

Variable length subnetting, areas, and redistribution into and out of OSPF are supported.

OSPF routing is supported in accordance with the following standards:

▄ Cisco ASR 5000 Series Product Overview

Due to additional memory requirements, this service can only be used with 8GB Packet Accelerator

For more information on AAA Server Group configuration, refer AAA Interface Administration and

For more information on IP pool overlapping configuration, refer VLANs chapter in System

RFC-1850, OSPF Version 2 Management Information Base, November 1995

RFC-2328, OSPF Version 2, April 1998

RFC-3101 OSPF-NSSA Option, January 2003

CDMA2000 Wireless Data Services