1. Mobile Router Technology Development
David Stewart, Will Ivancic,
Dan Shell, Kent Leung,
Brian Kachmar and Terry Bell

2. Outline Mobile-Ip and Mobile Router overview Mobile Router Features
NASA GRC Test Environment
NEAH BAY Project
Military Application
Future Developments

3. Mobile-IP (IPv4) Mobile Node Foreign Agent Foreign Agent
“ ”
Home IP
Care-Off-Address
Foreign Agent
Foreign Agent
NASA Glenn
NASA Ames
Internet or Intranet
NASA Goddard
Corresponding Node
Home Agent

4. Mobile-Router (IPv4) Mobile Router (Mobile Node) Foreign Agent
Virtual LAN
Interface
Mobile Router
(Mobile Node)
Roaming
Interface
Tunnel-0
MR Loopback
Virtual Interface
COA
FA WAN
Tunnel-1
Foreign Agent
Internet WAN
Internet
Internet WAN
Home Agent
HA Loopback
Virtual Interface
Corresponding Node

5. Mobile Router IOS Features
Multiple Roaming Interfaces
Preferred Path
Smooth Handoffs
Set and Forget Configuration
Performs Well in Long Delay Environment
Hot Standby Mobile Routers
Hot Standby Home Agents

6. Mobile Router IOS Feature Preferred Path
Host
on Mobile LAN
Satellite
Serial Link
BW 128K
OSPF Area 4
OSPF Area 5
Ethernet
(Preferred Path)
Foreign Agent
Airport
Foreign Agent
Only one (1) route
is active
At any time.
OSPF Area 0
Home Agent

7. Mobile Router in Time Time FA2 FA1 Command Center FA3 Battle Group HA
FAU / Satellite / AWACS
Time
Ethernet
Ethernet
FA2
FA1
Command
Center
FA3
Battle
Group HA

8. GRC’s Mobile Router LAN Field Tests
Mobile Test Bed
Bldg. 311
Bldg. 54

9. NASA GRC Mobile-Router Testbed

10. Neah Bay / Mobile Router Project
Cleveland
Detroit
Foreign-Agent
Somewhere, USA
Home-Agent
Anywhere, USA
Internet
Neah Bay
Outside of wireless LAN range, connected to FA via Inmarsat.
Connected to FA via wireless LAN at Cleveland harbor

11. Internet Detroit Neah Bay Neah Bay Cleveland Foreign-Agent
Connected to FA via wireless LAN at Cleveland harbor
Neah Bay
Outside of wireless LAN range, connected to FA via Inmarsat.
Foreign-Agent
Foreign-Agent
Somewhere, USA
Cleveland
Foreign-Agent
Internet
Home-Agent
Anywhere, USA

12. Neah Bay / Mobile Router Project
Participants
Neah Bay / Mobile Router Project
USCG (Network and Ship)
NASA (Networking)
Cisco System (Networking)
Ball Aerospace (Phased Array Antennas)
L3-Communications (Tracking Antenna)
Lockheed/Martin (Satellite Ground Station)
Other Possible Participants
Western Datacom (Encryption Devices)
Veridian (Network Security)

13. Neah Bay / Mobile Router Project
INMARSAT
SOUTHBURY FA
Internet
DHCP
DHCP
SERVER
Ball Aerospace’s
ARILINK Antenna
System
DHCP
ENCRY
VOIP HA SW
USCG
Intranet MR
VOIP
ENCRY WB
CLEVELAND FA WB WB
DETROIT FA WB WB
IPSec tunneled link from
open Internet to HA
Security – Interim Solution
Encryption Between Neah Bay LAN and USCG Intranet
RS232 Serial Line to Console port

14. GRC Radio Deployment

15. Military Applications
MR Assists with Rapid Deployment of Networks.
MR enables mobile sub-networks to dynamically attach and reattach to multiple points on a network.
MR “Set & Forget” Technology - Engineering/optimization is done prior to deployment.

16. Military Applications
AWACS
Home-Agent
deployed in
BGCC
Communications link
between BGCC and the
Field Command Post
Tactical data forwarded from
surveillance satellites to the BGCC.
Battle Group Command Center (BGCC)
Foreign-Agent
deployed in UAV
Intelligence Control
Center
UAV
Mobile-Router deployed in Armored
Field Unit. Secondary communications
link utilized due to lost LOS of primary.
Non-preferred-path
becomes preferred-path
Preferred-path
Non-preferred-path
In case of communications
loss of preferred-path
Mobile-Router deployed in
Armored Field Unit.
Foreign-Agent deployed in
Tracked Command Post Carrier.
Unit deployed in vicinity of the
battlefield.

17. Future Developments Multicast traffic to Mobile-Router.
Routers behind Mobile-Router.
Mobile-Router behind Mobile-Router.
Secondary HA configuration.
Mobile-Router’s registration over Asymmetrical Links.

18. MR behind MR

19. Summary
MR “Set & Forget” Technology - Engineering/optimization is done prior to deployment.
MR assists with rapid deployment of networks.
MR enables mobile sub-networks to dynamically attach and reattach to multiple points on a network.
Performs well in long delay environments
Redundancy can be engineered into a Mobile-Router network design.

20. Mobile Router IOS Feature Redundant Home Agents
Roaming
Roaming
OSPF Area 4
OSPF Area 5
Adv
Adv
Foreign Agent
Foreign Agent
Switch
OSPF Area 0
Home Agent
Home Agent

21. Military Applications
Battle Group C
Battle Group B
AWACS
UAV
Intelligence Control
Center
Artillery Support Group
Battle Group Command Center
(BGCC)
Tactical data forwarded from
surveillance satellites to the BGCC.
Communications link
between BGCC and the
Field Command Posts
Foreign-Agent
deployed in UAV
Battle Group A
Mobile-Router deployed
in Armored Field Units.
in Airborne Support Units.
in Field Units.
in Field Artillery Units.
Foreign-Agent deployed in
Tracked Command Post Carrier.
Mobile Command Post.
Home-Agent
deployed in
BGCC
Military Applications