Cisco Cisco Packet Data Interworking Function (PDIF)

Cisco

ePDG Administration Guide, StarOS Release 17 ▄

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 ..................................................................................................................... 17

ePDG Service ..................................................................................................................................... 18

IKEv2 and IPSec Encryption .............................................................................................................. 18

Supported Algorithms .................................................................................................................... 18

x.509 Digital Certificate Handling ................................................................................................... 19

Timers ............................................................................................................................................ 19

Dead Peer Detection .......................................................................................................................... 20

Child SA Rekeying ............................................................................................................................. 20

Support for MAC Address of WiFi Access Points .............................................................................. 20

AAA Server Groups ............................................................................................................................ 20

EAP Authentication ............................................................................................................................ 20

IPv6 Capabilities ................................................................................................................................. 21

General Call Flow ............................................................................................................................... 21

P-GW Selection .................................................................................................................................. 24

Static Selection .............................................................................................................................. 24

Dynamic Selection ......................................................................................................................... 26

P-GW initiated bearer modification ................................................................................................ 27

Topology/Weight-based Selection ................................................................................................. 28

Dual Stack Support ............................................................................................................................ 28

Inter-access Handover Support ......................................................................................................... 29

Mobile Access Gateway Function ...................................................................................................... 29

IPv6 Router Advertisement Support ................................................................................................... 29