Cisco Cisco ASR 5000 管理员指南

Cisco

Cisco ASR 5x00 IP Services Gateway Administration Guide ▄

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CONTENTS

About this Guide .............................................................................................. vii

Conventions Used .................................................................................................................................. viii

Contacting Customer Support ................................................................................................................. ix

Additional Information ............................................................................................................................... x

IP Services Gateway Overview ....................................................................... 11

Introduction ............................................................................................................................................. 12

Platform Requirements ...................................................................................................................... 12

License Requirements........................................................................................................................ 12

How it Works .......................................................................................................................................... 13

RADIUS Server Mode ........................................................................................................................ 13

RADIUS Proxy ............................................................................................................................... 13

RADIUS Snoop Mode ........................................................................................................................ 14

In-line Services ....................................................................................................................................... 15

Application Detection and Control ...................................................................................................... 15

Content Filtering ................................................................................................................................. 15

Enhanced Charging Service .............................................................................................................. 15

Enhanced Feature Support .................................................................................................................... 16

Accounting-On and Accounting-Off Messages .................................................................................. 16

IPSG Server Mode ......................................................................................................................... 16

IPSG Proxy Mode .......................................................................................................................... 16

Dynamic RADIUS Extensions (Change of Authorization) .................................................................. 16

Gx Interface Support .......................................................................................................................... 17

Gy Interface Support .......................................................................................................................... 18

Content Service Steering ................................................................................................................... 18

Lawful Intercept .................................................................................................................................. 18

Multiple IPSG Services....................................................................................................................... 18

Overlapping IP Support over VLAN ................................................................................................... 19

Call Flows for Overlapping IP Support over VLAN ........................................................................ 19

Dictionary Requirements ................................................................................................................ 21

Radius Client IP Validation ................................................................................................................. 21

Session Recovery .............................................................................................................................. 22

IP Services Gateway Configuration ............................................................... 23

Configuration Requirements for the IPSG .............................................................................................. 24

Required Configuration File Components .......................................................................................... 24

Required Component Information .................................................................................................. 25

Configuring the IPSG .............................................................................................................................. 27

IPSG Context and Service Configuration ........................................................................................... 28

Option 1: RADIUS Server Mode Configuration ............................................................................. 28

Option 2: RADIUS Server with Proxy Mode Configuration ............................................................ 28

Option 3: RADIUS Snoop Mode Configuration .............................................................................. 30

ISP Context Configuration .................................................................................................................. 30

Creating the ISP Context ............................................................................................................... 30

Enhanced and Optional Configurations ............................................................................................. 31

Virtual APN Support Configuration ................................................................................................ 31