Cisco Cisco ASR 5000

Cisco

ePDG Administration Guide, StarOS Release 16 ▄

iii

CONTENTS

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

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

Supported Documents and Resources ....................................................................................................ix

Related Common Documentation ....................................................................................................... ix

Related Product Documentation ......................................................................................................... ix

Obtaining Documentation .................................................................................................................... ix

Contacting Customer Support .................................................................................................................. x

Evolved Packet Data Gateway Overview ........................................................ 11

Product Description ................................................................................................................................ 12

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

Licenses ............................................................................................................................................. 12

Network Deployment(s) and Interfaces .................................................................................................. 13

Network Elements .............................................................................................................................. 13

ePDG ............................................................................................................................................. 13

eNodeB .......................................................................................................................................... 14

MME ............................................................................................................................................... 14

S-GW ............................................................................................................................................. 14

P-GW ............................................................................................................................................. 14

3GPP AAA Server .......................................................................................................................... 14

HSS ................................................................................................................................................ 14

PCRF ............................................................................................................................................. 14

Logical Network Interfaces ................................................................................................................. 15

Transport Combinations ..................................................................................................................... 15

Features and Functionality ..................................................................................................................... 16

ePDG Service ..................................................................................................................................... 17

IKEv2 and IPSec Encryption .............................................................................................................. 17

Supported Algorithms .................................................................................................................... 17

x.509 Digital Certificate Handling ................................................................................................... 18

Timers ............................................................................................................................................ 18

Dead Peer Detection .......................................................................................................................... 19

Child SA Rekeying ............................................................................................................................. 19

Support for MAC Address of WiFi Access Points .............................................................................. 19

AAA Server Groups ............................................................................................................................ 19

EAP Authentication ............................................................................................................................ 19

IPv6 Capabilities ................................................................................................................................. 20

General Call Flow ............................................................................................................................... 20

P-GW Selection .................................................................................................................................. 23

Static Selection .............................................................................................................................. 23

Dynamic Selection ......................................................................................................................... 25

P-GW initiated bearer modification ................................................................................................ 26

Topology/Weight-based Selection ................................................................................................. 27

Dual Stack Support ............................................................................................................................ 27

Inter-access Handover Support ......................................................................................................... 28

Mobile Access Gateway Function ...................................................................................................... 28

IPv6 Router Advertisement Support ................................................................................................... 28