Home Agent 10.1.1.254 Virtual Network 10.1.1.0/24 Home Network Intemnet Local Network B Correspondent Node 10.1.0.0/16 172.16.0.0/24 172.16.1.1 Foreign Agent 192.168.1.254 c Mobile Node A Visited Network 192.168.1.0/24 Foreign Network 192.168.2.0/24
■Mobile Node ▣Host device or router ■Foreign agent A router in visited network Gateway for mobile node Establish a tunnel to the home agent
◼ Mobile Node Host device or router ◼ Foreign agent A router in visited network Gateway for mobile node Establish a tunnel to the home agent
Home agent A router in home network Maintain current location information for mobile node Deliver traffic to mobile node through tunnel Correspondent node 口与mobile node通信的节点 口希望对其透明
◼ Home agent A router in home network Maintain current location information for mobile node Deliver traffic to mobile node through tunnel ◼ Correspondent node 与mobile node通信的节点 希望对其透明
Home Agent 10.1.1.254 Virtual Network 10.1.1.0/24 Home Network Internet Local Network B Correspondent 10.1.0.0/16 Node Foreign Agent 192.168.1.254 Mobile Node A Home Address 10.1.1.1 Visited Network A CCoA192.168.1.20 192.168.1.0/24 Foreign Agent 192.168.1.254 Mobile Node A Home Address 10.1.1.1Visited Network B CoA192.168.1.254192.168.2.0/24
Home address Care-of address The termination point of the tunnel from the home agent Address on the foreign agent,CoA Address assigned locally to mobile node, CCoA
◼ Home address ◼ Care-of address The termination point of the tunnel from the home agent Address on the foreign agent, CoA Address assigned locally to mobile node, CCoA