8/14/2019 En Mobile Ip
1/17
[1]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
MOBILE IP
Under the guidance of
Mr. N. Srinivasu
ByJiten Mishra EC200117327
(Lecturer Of Electronics & Communication)
8/14/2019 En Mobile Ip
2/17
[2]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Features of IPv6
128 bit address. Address Auto configuration
An IPv6 node configurs it address automatically by using the router
advertisements and its interface id.
Extension Headers Routing header
For route optimization
Destination Options header
For mobile node originated datagrams
8/14/2019 En Mobile Ip
3/17
[3]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Mobile IPv6 TerminologyMobile Node
The node which moves between the networks.
Home Agent
The node in the Home network which knows the
information(like current location...etc) about the mobile nodes,
which belongs to that network.
Correspondent Node
Any node which contacts the Mobile node.
8/14/2019 En Mobile Ip
4/17
[4]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Mobile IPv6 Terminology (Continued)
Home Address
Address of the Mobile Node in the Home Network
Care-of Address
Addess of the Mobile Node in the Foreign network
Home Link
The link on which a mobile node's home subnet prefixis defined. Standard IP routing mechanisms will deliver
packets destined for a mobile node's home address to its home
link.
8/14/2019 En Mobile Ip
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[5]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Foreign Link
Any link other than the mobile node's home link.
Binding
The association of the home address of amobile node
with a care-of address for that mobile node.
8/14/2019 En Mobile Ip
6/17
[6]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Mobile IPv6 Operation
Mobile IPv6 operation can be divided in to
3 parts
Discovering the care-of address
Registering the care-of address
Tunneling to the care-of address
8/14/2019 En Mobile Ip
7/17[7]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Mobile IPv6 Operation(cont...)
Discovering the care-of address
A Mobile Node(MN) performs address autoconfiguration to
get its care-of address
Resistsering the care-of address1. The MN registers its care-of address with its home agent
by sending a Binding Update request to its Home Agent
(HA)
2. HA sedns a Binding Acknowledgement to the
corresponding mobile node.
8/14/2019 En Mobile Ip
8/17
[8]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Mobile IPv6 basic operationCorrespondent Node
Mobile Node
Bidirectional
tunnellingRoute
optimization
IPtunnel
Mobile Node
Routingoption
Home Agent
8/14/2019 En Mobile Ip
9/17
[9]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Mobile IPv6 address updates
Mobile Node
Home Agent
Binding Update Ack
Mobile Node needs to update the Home Agent on itscurrent location
Binding Update message
The Home Agent keeps this binding for future use
Mobile Node
8/14/2019 En Mobile Ip
10/17
[10]
NationalInst i
tuteOfScie
nce&
Technolo
gy
Mobile IP
Jiten Mishra (EC200117327)
Triangle Routing
8/14/2019 En Mobile Ip
11/17
[11]
NationalInst i
tuteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
Route Optimization
MN may bind BU in pkts to CN, allowing CN to
directly send pkts to MN
CN receive a pkt with BU in it, then update its Binding
Cache Just like any IPv6 node, every time it attempt to sent
pkts, it check its Binding Cache:
If there is an entry with CoA of the destination, use the
CoA Otherwise, use the origin address
8/14/2019 En Mobile Ip
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[12]
NationalInst i
tuteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
Route Optimization
8/14/2019 En Mobile Ip
13/17
[13]
NationalInst i
tuteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
While away from home, an MN selects onerouter and one subnet prefix advertised by thatrouter to use as the subnet prefix in its primarycare-of address
To wait for the periodically sent RouterAdvertisements
Movement Detection
8/14/2019 En Mobile Ip
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[14]
NationalInst i
tuteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
Dynamic Home Agent Address Discovery
It is possible that when the mobile node needs to send
a Binding Update to its home agent to register its new
primary care-of address, the mobile node may not know the
address of any routeron its home link that can serve as a
home agent for it.
ICMP Home AgentAddress Discovery Request
message
ICMP Home Agent Address Discovery Reply message
8/14/2019 En Mobile Ip
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[15]
NationalInst i
tuteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
Internet
Home Agent 3
Correspondent Node
Mobile Node
Router
Router
Router
Home Link
Link A
Link B
Link C
(1)Binding Update to Home-Agents anycast address(2)Binding Acknowledgement including the Home Agents List;
rejects the registration request
Home Agent 1 Home Agent
2
Home Agents List Preference ValueHome Agent 3 9Home Agent 1 2Home Agent 2 -3
Larger Preference value indicate higher availability of
the home agent
8/14/2019 En Mobile Ip
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[16]
NationalInst i
tuteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
Conclusions Mobile IPv6 is
An efficient protocol for handling mobility with
IPv6
To minimize the control traffic needed to effect
mobility
8/14/2019 En Mobile Ip
17/17
[17]
NationalInst
ituteOfScie
nce&
Technology
Mobile IP
Jiten Mishra (EC200117327)
THANK YOU
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