© 2004 Monash CTIE

IPv6 Mobility Research at CTIE

Australian Telecommunications CRCNext Generation Internet Program

@Centre for Telecommunications and Information

EngineeringMonash University

© 2004 Monash CTIE Slide 2

Hello, who are we?

Centre for Telecommunications and Information Engineering (CTIE):

Research centre within Monash UniversityPart of ATcrc Next Generation Internet ProgramHave an IPv6 testbed runningDevelopers of IPv6 Multimedia applicationsImplementers of IPv6 Mobility protocolsContributors to IETF Working Groups and standards on IPv6 and Mobile-IPv6Diverse Research and Commercial Experience.

© 2004 Monash CTIE Slide 3

Mobile Packets the Future?Trends towards packetisation of everythingEasier to incorporate different data streamsUser control of usage modelsWe don't know what the applications will be (but we can take some guesses).Once we have IP connectivity, anything goes...

© 2004 Monash CTIE Slide 4

The Internet Mobility ChallengeIP address is not only unique address, but tied to Network Topology Movement of IP device between networks relies on Layer 2 or Layer 3 context transfer.When Layer 3 transfer occurs, IP address changes.Higher layer protocols cannot handle IP address changes (e.g. TCP)IP Mobility must hide or prevent IP address changes for higher protocol layers

© 2004 Monash CTIE Slide 5

Mobile IPv6 System

Home Address

Internet

Mobile Node

Correspondent Node

Home Network

Foreign Network

Address Binding

Data

Data

Data

Address Registration

Router Advertisement

Care-of Address

Home Agent

© 2004 Monash CTIE Slide 6

Mobile IPv6 Handover

Home Address

Internet

Home Agent

Mobile Node

Correspondent Node

Home Network

Foreign Network 2 Care-of

Address 2

Mobile Node

Foreign Network 1

Care-of Address 1

Router Advertisement

Duplicate Address DetectionHome Binding

Update/Acknowledgment

Home Test

Care-of TestCorrespondent Binding Update

© 2004 Monash CTIE Slide 7

Four Delays

Movement Detection DelayRouter Advertisement DelayDuplicate Address Detection DelayBinding Update Delay

© 2004 Monash CTIE Slide 8

Potential Solutions

Layer 2 triggers and fast Router SolicitationFast Router AdvertisementOptimistic Duplicate Address DetectionHierarchical MIPv6

© 2004 Monash CTIE Slide 9

IPv6 Test NetworkIPv6 feed viaAARNet

Virtual LANVirtual LAN

WLANAccess Point

WLANAccess Point

Virtual LAN

Cisco 7507Router

Virtual LAN

WLANAccess Point

IPv6 in IPv4 Tunnel

Linux IPv4 router running NISTNet to introduce

packet delay/loss

IPv6 in IPv4 Tunnel

IDC

IPv6 Video Server

IDC

IPv6 DarwinStreaming Server

Assorted PCs -Linux, WindowsXP Sun Blade 1000

Workstations

Assorted PCs -inux, FreeBSD

Virtual LAN

MobileNodes

AccessRouters

Mobility AnchorPoint (MAP)

CorrespondantNodes

2001:388:608c:fc::/642001:388:608c:88::/64

2001:388:608c:4003::/64 2001:388:608c:4009::/642001:388:608c:4011::/64

grimaud porthosdewinter

aramis

dartagnan

athos

kakapo

uplinkIDC

IDC

IDC

IDC

IDC

geryon

Sun LinuxCluster

pizzeria

Home Agent,DNS Proxy

2001:388:608c:4000::/64

isdnpc

Home Agent,DNS Proxy

Virtual LAN

2001:388:608c:4005::/64

IDC

IPv6 Web Server

edna

IPv6 WebProxy

Monash IPv6 allocation: 2001:388:608c::/48CTIE sub-allocation: 2001:388:608c:4000::/56

© 2004 Monash CTIE Slide 10

Test Environment

© 2004 Monash CTIE Slide 11

Some Results

Base Case

+ HMIP & FastRA+ Optimistic DAD

+ Triggers

© 2004 Monash CTIE Slide 12

Moving forward

Detecting Network Attachment (DNA) IETF working group – Greg Daley Co-chair.

Link IdentificationDeterministic FastRA

Optimistic DAD – IPv6 working group documentMoving towards Proposed Standard

Edge HandoversSecuring Proxy Neighbour DiscoveryIPv6 MulticastSimulation

© 2004 Monash CTIE

Thank you