CN-2-2-2 - Receiving CoTI - Home Address option
Host
HA----------R2----------R1----------R0
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|---- |---- |----MN |----CN(NUT)
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Home Link Link2 Link1 Link0
(Foreign) (Foreign)
Link0 3ffe:501:ffff:100::/64 Link1 3ffe:501:ffff:101::/64 Foreign Link Link2 3ffe:501:ffff:102::/64 Foreign Link 2 Home Link 3ffe:501:ffff:104::/64 Home Link CN(NUT) 3ffe:501:ffff:100::X
Auto Configuration (InterfaceID)MN(in Link1) 3ffe:501:ffff:101::Y
Increased in each test (InterfaceID)MN care-of address MN(in Home Link) 3ffe:501:ffff:104::Y
Increased in each test (InterfaceID)MN home address R0(Link0) 3ffe:501:ffff:100::1 R1(Link1) 3ffe:501:ffff:101::1 R2(Link2) 3ffe:501:ffff:102::1 HA(Home Link) 3ffe:501:ffff:104::1
Reboot NUT (reboot.rmt)
MN R1 HA R0 CN(NUT)
| | | | |
| | | |------>| 1.RA
| | | | |
| | | |------>| 2.NS
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| | | |<------| 3.NA
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|-------------->|-------------->| 4.Echo Request
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|<--------------|<--------------| 5.Echo Reply
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|------------------------------>| 6.Echo Request(Home Address option)
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|<------------------------------| 7.BE(Status=1)
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|------------------------------>| 8.CoTI(Invalid Home Address option)
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| | | | | (*1)
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1. Send Router Advertisement. 2. Send Neighbor Solicitation. 3. Receive Neighbor Advertisement. 4. Send ICMP Echo Request. 5. Receive ICMP Echo Reply. 6. Send ICMP Echo Request(Home Address option). 7. Receive Binding Error(Status=1). 8. Send Care-of Test Init(Invalid Home Address option). *Expire HoT timer.
Packet Format
8. Care-of Test Init
IPv6 header
Destination Options header
Home Address option
Mobility Header
Care-of Test Init
(*1) MN does not receive Care-of Test.
(draft-ietf-mobileip-ipv6-24.txt)
9.4.2 Receiving Care-of Test Init Messages
Upon receiving a Care-of Test Init message, the correspondent node verifies the following:
o The packet MUST NOT include a Home Address destination option.
Any packet carrying a Care-of Test Init message which fails to satisfy all of these tests MUST be silently ignored.