Mobile IP

N9590051

Mobile IP

PDA IP Mobile IPMobile IPIETF ( Internet Engineering Task Force)Mobile IProuting protocolMobile IPRFC ( Request For Comments)RFC2002RFC2003RFC2004RFC1701RFC2005RFC2006Mobile IPMobile NodeIPInternet

Mobile IPMobile IP

Mobile IPMobile IPMobile Node routerMobile NodeIPMobile NodeIPHome Network Mobile Host Mobile Host Home Address Home Network Mobile HostMobile Host Mobile Host

Mobile IPHome Agent Home Network Mobile Host a Mobile Nodes home networkrouterHome networkMobile Nodesmobile nodeForeign Network Mobile Host Home Network Mobile HostForeign NetworkCare-of-Address Mobile Host Home Network IP

Mobile IPForeign Agent Foreign Network Care-of-AddressMobile Nodes visited networkrouterHome Agenthome networkmobile nodeRegister Mobile Host Home Agent Care-of-Address

Mobile IPMobile Host Home Network Foreign NetworkMobile Host Agent

Mobile NodeHome AgentbroadcastHome NetworkIProutingmobile nodeForeign AgentbroadcastForeign networkIP care-of address ( Foreign Network IP address)mobile nodeHome Agentrouting

Mobile IP Mobile Host Home Agent Mobile Host Mobile Host Home Agent Home Agent Foreign Agent Foreign AgentForeign Agent EncapsulateEncapsulate RFC 2003(IP Encapsulation within IP) RFC 2004 (Minimal Encapsulation within IP)Tunneling

Mobile IP

Care-of-Address (DiscoveringCare-of-Address)

care-of address1Foreign agent care-of addressforeign agentforeign networkIP2Co-located care-of addresscare-of addressDHCPIP

Agent Discovery Agent Discoverymobile nodehome networkforeign networkforeign networkmobile nodecare-of address Mobility agents (home agentforeign agent) Agent advertisement messages (care-of address)mobile nodeshome networkforeign networkcare-of addressmobile nodesforeign agentmobile nodesagent solicitation messages agentagentcare-of address

Care-of-Address (RegisteringCare-of-Address)

mobile nodehome networkforeign networkcare-of addresshome agentcare-of addressMobile HostForeign AgentForeign AgentHome AgentMobile Hostcare-of addressHome AgentHome AgentForeign AgentForeign AgentMobile Host

Care-of-Address (RegisteringCare-of-Address)

Home addressCare-of-AddressRegistration Lifetime

BindingBindingBinding BindingBinding Update

Care-of-Address (RegisteringCare-of-Address)

Care-of-Address

Care-of-Address (RegisteringCare-of-Address)

Binding Update Home Agent Routing TableAuthentication Mobile IP Home Agent Mobile Host keykey Message Digest 5 MD5 (RFC 1321)128-bitkeyreplay attackkey identification fieldidentification field Home Agent Mobile Host

Tunneling to the Care-of-Address

Home Network Foreign Network Mobile Host? Encapsulate Encapsulate

IP-within-IP(RFC 2003)Minimal Encapsulation(RFC 2004)

Tunneling to the Care-of-Address

Home Agent IP Foreign Agent Mobile HostMobile IP

Tunneling to the Care-of-Address

Tunneling to the Care-of-Address

Mobile Host IP Mobile Host Home Agent Foreign Agent

(Triangular Routing of Data )

Mobile Host Mobile Host Home Agent Binding

Tunneling to the Care-of-Address

Triangular Routing of Data

IPv4/IPv6 (world wide web)(Internet)Internet IP Address Internet Society

IPv4 IPv4 32 4294967296

IPv4 Class AClass BClassCClass A Class C 255 IP 255

IPv4 QoSIPv4 CIDR

IPv4 IPv4 IPv6

IPv4

Mobile IPv6 Mobile IPv6IPv6Mobile IPv4Mobile IPv4Mobile IPv61.Mobile IPv6IPv6 a.Foreign Agent b.IPv6(End to End Security)Foreign Agent CoAColocated CoA

Mobile IPv62. IPv6 Destination OptionMobile IP 3. Mobile IP 4. (Smooth Handover)

Mobile IPv4Mobile IPv6

Compared Items Mobile IPv4 Mobile IPv6 Foreign Agent YES NO Care-of address FA or CCoA CCoA only Obtaining Care-of address By FA or DHCPv4 IPv6 stateless and stateful mechanisms Route Optimization Option Mandatory Packet tunnel during route optimization Require packet tunneling between MN and CN Forward packets with no tunneling HA involves route optimization YES NO MIP messages format ICMP and UDP packets IP headers and ICMP packets MIP messages Reg. Req, Bing Update, Reduced and allow piggybacked in header Smooth hand-over Option Mandatory Reverse tunneling Solve ingress filtering No ingress filtering problem