1 mobile-ip priority home agents for aerospace and military applications terry bell, will ivancic,...

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Mobile-IP Priority Home Agents for Aerospace and Military Applications

Terry Bell, Will Ivancic, Dave Stewart, Dan Shell and Phil Paulsen

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Outline Mobile-IPv4 Operations Priority Home Agent Implementation Architectural Concepts Field Demonstration Virtual Mission Operations Center Potential Problems and Issues Migration Toward IPv6

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Mobile-IP Operation

IPv4

Internet or Intranet

Mobile Node“ ”

Home IP 128.183.13.103Care-Off-Address139.88.111.50

Corresponding Node

Access Router

143.232.48.1NASA Ames

143.232.48.1

Home Agent

128.183.13.1NASA Goddard

Mobile-IP (IPv4) Teminology

Foreign Agent

139.88.111.1

139.88.112.1NASA Glenn

1. Advertises Mobile Node’s Network to the world

2. Maintains current location for Mobile Node

3. Tunnels datagrams for delivery to the Mobile Node

1. Provides routing service for Mobile Node while registered with HA

2. Provides temporary address to Mobile Node (Care-off-Address)

3. Detunnels and delivers datagrams to the Mobile Node

1. Mobile Node can be a host or a router

2. Changes its point of attachment from one network or subnetwork to the next

3. Detunnels datagrams is collocated-care-of-address is used (attached to access router)

4. Can be multi-homed (have more than one interface active)

1. Any node that is communicating with the mobile node

2. Can be router or host

1. Provides routing service for Mobile Node while registered with HA

2. Provides temporary address to Mobile Node (Collocated Care-off-Address)

Mobile Node

Foreign Agent Foreign Agent

Home Agent

“ ”

139.88.111.1

143.232.48.1NASA Ames

Corresponding Node



143.232.48.1



Registration using Foreign Agents

Bi-directional Tunnel

if Reverse Tunneling

Is specified.

Foreign Agent Services

Advertisement

Request for Foreign Agent

Services

Registration

Create Tunnel between FA and

HA

Mobile Node


Home Agent

“ ”

139.88.111.1

143.232.48.1NASA Ames

Corresponding Node



143.232.48.1



Data Flow using Foreign Agents(Triangular Routing)

Mobile Node


Home Agent

“ ”

139.88.111.1

143.232.48.1NASA Ames

Corresponding Node



143.232.48.1



Data Flow using Foreign Agents(Reverse Tunneling)

Mobile Node

Access Router Access Router

Home Agent

“ ”

139.88.111.1

143.232.48.1NASA Ames

Corresponding Node



143.232.48.1



Mobile-IP (IPv4) using Collocated Care-Of-Address

DHCP orConnection Established

Bi-directional Tunnel


Is specified.

Mobile Node


Home Agent

“ ”

139.88.111.1

143.232.48.1NASA Ames

Corresponding Node



143.232.48.1



Data Flow using Collocated Care-Of-Address(Triangular Routing)

Mobile Node


Home Agent

“ ”

139.88.111.1

143.232.52.1NASA Ames

Corresponding Node



143.232.48.1



Data Flow using Collocated Care-Of-Address(Reverse Tunneling)

Tunnel-0

Tunnel-1

Mobile Router(Mobile Node)

Foreign Agent

Home Agent

Corresponding Node

139.88.112.1Internet WAN

128.184.24.2


Internet

10.2.2.1RoamingInterface

128.184.24.1Virtual LANInterface

128.184.25.1HA LoopbackVirtual Interface

139.88.100.1FA WAN

128.184.26.1MR Loopback

Virtual InterfaceCOA 139.88.100.1

Mobile-Router (IPv4)Mobile Router

Second Tunnel Created

between FA and HA

Tunnel Created

between MR and HA

Bi-directional Tunnels


Is specified.


Foreign Agent

Home Agent

Corresponding Node


Tunnel-0


Internet


Tunnel-1


139.88.100.1FA WAN

Data FlowMobile Router

(Reverse Tunneling)128.184.24.2128.184.24.1

Virtual LANInterface




Home Agent

Corresponding Node


Tunnel-0



Foreign Agent

Tunnel-1


139.88.100.1FA WAN

Data FlowCollocated Care-Of-Address

(NO reverse tunneling)

Internet No Foreign AgentNo Second Tunnel

128.184.24.2128.184.24.1Virtual LANInterface




Home Agent

Corresponding Node


Tunnel-0


Internet



139.88.100.1

Mobile-Router (IPv4)Collocated Care-Of-Address

(NO reverse tunneling)

Access Router

128.184.24.2128.184.24.1Virtual LANInterface



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Priority Home Agent Operation

IPv4

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Secondary Home Agent(reparenting the HA)

PrimaryHome Agent

SecondaryHome Agent

Reparenting Home AgentHelps resolve triangular routing And Route optimizationProblem over long distances

X

Mobile Router

Home Agent #2

Foreign Agent Europe

Home Agent #1

139.88.111.1

152.232.48.1Paris, France


139.88.112.1Frankfort, Germany

Home IP 128.55.100.103

128.183.13.1Virginia, USA

Prioritized Home Agents – Using Access Lists

Registration Request

HA Priority: HA#1 then HA#2

Care-Off-Address139.88.111.1

Acess List: Deny 139.88.111.1Allow 143.232.48.1

Foreign AgentUnited States

143.232.55.1Baltimore, Maryland

143.232.48.1Must be in

same Autonomous System so

route is advertised properly

Acess List: Deny 143.232.48.1Allow 139.88.111.1

Registration RequestDenied

Registration Request to

HA#2

Registration RequestGranted

Establish Tunnels

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Emergency Backup(Hub / Spoke Network)

If primary control site becomesphysically inaccessible but can be electronically connected, asecondary site can be established.

If primary control site is physically incapacitated, there is no backup capability.

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Secondary Home Agent(Fully Meshed Network)

1

2

3

4

5

If primary control site is physically incapacitated, a second or third or forth site take over automatically.

Mobile Router

Home Agent #2

Foreign Agent Europe

Home Agent #1

139.88.111.1

152.232.48.1Paris, France


139.88.112.1Frankfort, Germany

Home IP 128.55.100.103

128.183.13.1Virginia, USA

Prioritized Home Agents – Catastrophic Failure

HA Priority: HA#1 then HA#2

Care-Off-Address139.88.111.1

Acess List: Allow All

Foreign AgentUnited States

143.232.55.1Baltimore, Maryland

143.232.48.1Must be in

same Autonomous System so

route is advertised properly

Acess List: Allow All

Registration RequestGranted

CatastrophicFailure

Waiting for Registration

RequestGranted

Registration Request #2


RequestGranted

Registration Request #1Registration Request #3


RequestGranted

Establish Tunnels

Registration Request HA#2

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Intelligence Control Center

Battle Group Command Center (BGCC)Battle Group Command Center (BGCC)

Primary HA

ReachBack viaSatellite

Tactical data forwarded from surveillance satellites to the BGCC.

Mobile Network

Secondary HA

Foreign Agents

Mobile NetworkMobile Network

Command on the moveTear Down for move to

new location

X X

Secondary HA takes control during move

Access List:Allow FA2Deny FA1

Access List:Allow FA1Deny FA2

WAN connection for Call Manager (VOIP) to operate

at HA2

Protected LANs

Protected LAN

Prioritized HAs

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Virtual Mission Operations Center

HA2

Open Internet

SSTL DMC Satellite

SSTL Satellite Controllers

Surrey, England

FA1

MR

GSFC Ground StationUniversal

Space Network FA2

Surrey Ground Station

PrimaryVMOC

Virtual Mission Operations Center

Colorado Springs

HA1

Shadow VMOC

GRC

CERES Ground Station

FA3

EOSDIS

Cisco / GRC Researchers

Cleveland

Saturn Ground Station

Space ApplicationTechnology Utility-Research Network

(SATURN)

802.11b link with HAIPE

Mobile Warfighter

Vandenburg

Synchronized Databases

Trusted Network Environment(TNE) at VMOC core

Data Data Data

Virtual Mission Operations Center (VMOC)

VMOC routes operatorrequest to SV and or

Knowledge Data BaseSecure Network

OperationsCenter

InformationProtection

IO/IW Centers

Trusted Gateway

Knowledge BaseData Warehouse

MissionIntegrator

ConditionMonitor

Scheduler

IntelligentMultiplexor /

Demultiplexor

Shadow VMOCEurope

HAUnitedStates

HAEurope

FA

FA

FAFA

FA

FA

FA

CommandAnd Control

Virtual Mission Operations Center For a Global Space Network

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Potential Problems / Issues Number or registration retries and

time between retries are critical parameters effecting system performance Particularly applicable to VMOC for LEO

spacecraft control Prioritized Home Agents must reside

in the same autonomous systems to ensure mobile routes are advertised with the proper weighting

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Migration to IPv6 Work is taking place in the Networks in

Motion (NEMO) working group of the Internet Engineering Task Force (IETF)

Bidirectional Tunnels specified in “Basic Implementation” – similar to reverse tunneling. No route optimization in Basic draft

Interoperability with IPv4 specification including IPv4 and NAT transversal

IPv6 Inter-Home Agent draft specification is similar to dynamic Home Agents for IPv4

Mobile Network


Home Agent

Corresponding Node


Basic Mobile Network Support for IPv6

xLink UP

Mobile Network

NodesBindingUpdate

Single Bidirectional Tunnel From

MR to HA

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IPv6 Aeronautical Network Status

IPv6 Mobile Router working over IPv6 and IPv4 WAN networks (including T-Mobile GRPS and Verizon 1xRTT cellular networks).

IPv6 Mobile connectivity between NASA Glenn, Eurocontrol and Computer Networks and Software, Inc.

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Papers and Presentations

http://roland.grc.nasa.gov/~ivancic/papers_presentations/papers.html

orhttp://roland.grc.nasa.gov/~ivancic/

and pick “Papers and Presentations”

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Backup Slide

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Mobile Networking Solutions Routing Protocols

Route Optimization Convergence Time Sharing Infrastructure – who owns the network?

Mobile-IP Route Optimization Convergence Time Sharing Infrastructure Security – Relatively Easy to Secure

Domain Name Servers Route Optimization Convergence Time Reliability

1 mobile-ip priority home agents for aerospace and military applications terry bell, will ivancic,...

Documents

home ip

nasa glenn143

nasa amescorresponding

mobile node care

nasa goddardregistration

nasa goddarddata flow

mobile node collocated

nasa goddardmobileip