Mobile Router
Networks in Motion
.
(tm)
1
Mobile Router Features
• Uses Internet standards-bases Mobile-IP technology - RFC 2002
• Mobile Router allows for Networks in Motion™ enabling internet
connections from many types of mobile platforms.
• Users are mobile unaware – no need for special client software
• Layer 3 Routing (works with any communication link – wireless
or wired)
• MR is set and forget. No manual reconfiguration required as MR
moves between networks.
• Network (Users) retains its (their) identity keeps its (their)
address
• Continuous connectivity and smooth handoffs between
networks
• Enables sharing of network infrastructure
• Rapid Deployment
• !!! SECURABLE !!!
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Mobile Router Example
Time
VDL
Ethernet
FA
FA
PortB
FA
Port A
NOC HA
ACME Airlines
.
3
Shared Infrastructure
MR
MR
ACME Shipping
Canadian Coast Guard
FA
FA
HA
Public
Internet
MR
HA
US Coast Guard
HA
MR
HA
US Navy
ACME
SHIPPING
Mobile Router IOS Road Map
• UDLR Support
• Asymmetrical Pathing
• Reparenting of the Home-Agent
• Dynamic Registration
• Multicast Support
• IPSEC between MR and FA
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Asymmetrical Pathing
MilStar,
Globalstar,
Others
DVB
Satellite
Mobile Router
Internet
Foreign Agent
Foreign Agent
Home Agent
.
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Reparenting the HA
Primary
Home Agent
X
Secondary
Home Agent
Reparenting Home Agent
Helps resolve triangular routing
Problem over long distances
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Neah Bay
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Neah Bay / Mobile Router Project
Detroit
Foreign-Agent
Neah Bay
Outside of wireless LAN range,
connected to FA via Inmarsat.
Neah Bay
Connected to FA via
wireless LAN at Cleveland
harbor
Foreign-Agent
Somewhere, USA
Foreign-Agent
Home-Agent
Anywhere, USA
Internet
Clevelan
d
Layer 2 Technology
Globalstar
MCM-8
L3-Comm
15 dBic
Tracking Antenna
Hypergain
802.11b
Flat Panel
8 dBi
Dipole
Sea Tel Tracking
Antenna
.
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Satellite Coverage
Globalstar
INMARSAT
From SaVi
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Security
•
•
•
•
Security  Bandwidth Utilization 
Security  Performance 
Tunnels Tunnels Tunnels and more Tunnels
Performance  Security 
 User turns OFF Security to make system usable!
• Thus, we need more bandwidth to ensure
security.
ENCRYPTION ON THE RF LINK
ENCRYPTION AT THE NETWORK LAYER
VIRTUAL PRIVATE NETWORK
ORIGINAL PACKET
HEADER
.
HEADER
HEADER
HEADER
PAYLOAD
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Papers and Presentations
http://roland.grc.nasa.gov/~ivancic/papers_presentations/papers.html
or
http://roland.grc.nasa.gov/~ivancic/
and pick
“Papers and Presentations”
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Backup
Mobile-IP (IPv4)
Mobile Node
“ ”
Foreign Agent
143.232.48.1
Home IP
128.183.13.103
Care-Off-Address
139.88.111.50
Foreign Agent
139.88.111.1
139.88.112.1
NASA Glenn
143.232.48.1
NASA Ames
Internet or Intranet
128.183.13.1
NASA Goddard
Home Agent
Corresponding Node
Mobile-Router (IPv4)
10.2.3.1
Virtual LAN
Interface
10.2.2.1
Roaming
Interface
Mobile Router
(Mobile Node)
10.2.4.10
MR Loopback
Virtual Interface
COA 139.88.100.1
Tunnel-0
139.88.100.1
FA WAN
Tunnel-1
Foreign Agent
139.88.112.1
Internet WAN
Internet
128.183.13.1
Internet WAN
Home Agent
128.184.25.1
HA Loopback
Virtual Interface
10.2.3.101
Corresponding Node
Earth Observation
T3
T1
T2
?
Interim Solution –
? GlobalStar or INMARSAT
HA Directly connected to Internet via DSL
Satellite
FA
Internet
DHCP
DHCP
SERVER
DHCP
Satellite Antenna
System
DSL / with Subnet
VOIP
Taclane
HA
(Loopback has Public Address)
USCG
Intranet
SW
MR
VOIP
Taclane
WB
FA - CLEVELAND
WB
WB
Satellite
ISP
WB
Tachyon FA – Pelee Island?
DSL
ISP
IPSec tunneled link from
open Internet to HA
WB
FA - DETROIT
RS232 Serial Line to Console port
Public Address
WB
Battle Group Command Center
(BGCC)
Tactical data forwarded from
surveillance satellites to the BGCC.
Home-Agent
deployed in
BGCC
Mobile-Router deployed
in Field Artillery Units.
Foreign-Agent deployed in
Mobile Command Post.
Artillery Support Group
Intelligence Control
Center
UAV
AWACS
Foreign-Agent
deployed in UAV
Foreign-Agent deployed in
Tracked Command Post Carrier.
Foreign-Agent deployed in
Mobile Command Post.
Mobile-Router deployed
in Armored Field Units.
Battle Group A
UAV
Communications link
between BGCC and the
Field Command Posts
Foreign-Agent
deployed in UAV
Mobile-Router deployed
in Airborne Support Units.
Mobile-Router deployed
in Field Units.
Battle Group B
Battle Group C
Military Applications
Typical Rates
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