Didactic Laboratory for teaching Mobile IPv6

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Didactic Laboratory for teaching Mobile IPv6
IPT - Instituto de Pesquisas Tecnológicas do
Estado de São Paulo
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Mobile Networks

• Dissemination
• Mobile IPv4
• Mobile IPv6
• Learning Material

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Didactic Laboratory

• What was implemented
• MIPv6 Embedding on Knoppix
• Changes done
• Wireless board drivers
• Needs of the technology
• Daily practical use

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Didactic Laboratory
2 - Binding Update sent using the key
1 - "Return routability" checks and establishes
the session key
1
3
2
3 Packages is routed directly using the router
head and options from IPV6 destination
1

• Mobile IP with extensions for route optimization

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Laboratory Architecture

• A FTP server is started on the Agent Home and
  begin downloading a file
• During the download the ESSID is changed from
  fabio (Rede Home) to visitnet (Rede Visitada)

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Didactic Experiments

• Changing from the network segment
• Routing
• Doing the connection and starting the download

ftp fec010627001 get wingate.log
iwconfig eth0 essid visitnet
After changing essid a new IP is generated with
the mask of visitnet subnet. See it using
ifconfig on the mobile node
eth0 Link encapEthernet HWaddr
000475BC27B6 inet6 addr
fec010627004/64 ScopeSite inet6
addr fe8020475fffebc27b6/64 ScopeLink
inet6 addr fec01061100020475fffebc27b
6/64 ScopeSite inet6 addr
fec01062700020475fffebc27b6/64 ScopeSite
Care-of address acquired
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(No Transcript)
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mipdiag
mipdiag -s Mobile IPv6 Statistics NBindAcksRcvd
1 NBindUpdatesSent
1
mipdiag -c Mobile IPv6 Binding cache Home
Address Care-of Address
Lifetime Type fec010627004
fec01061100020475fffebc27b6 924
2
mipdiag -m If Home Address/prefix length
Home Agent H
R fec010627004 / 64
fec010627001 0 1
mipdiag -l Mobile IPv6 Binding update
list Recipient CN fec010627001 BINDING home
address fec010627004 care-of
addressfec01061100020475fffebc27b6 expires
944 sequence 0 state 1 delay 3 max delay 32
callback time 744
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Basic Operation
2 - Binding Update sent using the key
1 - "Return routability" checks and establishes
the session key
1
3
2
3 Packages is routed directly using the router
head and options from IPV6 destination
1

• Mobile IP with extensions for route optimization

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Basic Operation
3 - Use home address
2 Node updates the Home Agent
1 - Node goes to the foreign network
Mobile IP based on Home Agent
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Agent Home Operation

• A Home Agent maintain a separate list of agent
  home for each link that serves a Home Agent
• Package process
• Processing intercepted packages
• Handling reverse tunneled packages

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Mobile Node Operation

• Each mobile node must maintain a Binding Update
  List
• Each entry on the conceptual list of the Binding
  Update has the following fields
• The IP address of the node and the home address
  of the sent Binding Update
• The care-of address sent in this Binding Update
• The initial value of the TTL
• The remaining life time of that binding
• The maximum value of the field sequence number
• The last Binding Update time sent to that
  destination
• The status of any retransmission needed for this
  Binding Update

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Mobile IPv6 with Knoppix

• The Knoppix distribution
• What was done?
• What topology is compliant?
• Compatibility with wireless hardware
• Advantage of adopting this learning tool
• Download
• www.geocities.com/fabioxa