Device, system and method for realizing ether net passing through mobile IP

Abstract

The apparatus comprises: FA (foreign agent) device, MB (mobile bridge) device, and HA (home agent) device. The method thereof comprises: the FA device establishes and maintains the layer two mobile binding, and sends a registration message carrying the 802 MAC address of MB device to HA device; according to the received registration message carrying the 802 MAC address of the MB device, said HA makes a layer two mobile binding for the MB device; by learning the MAC address, getting the 802 MAC address of MH; making a layer two mobile binding for the MH.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device, system and method for realizing Ethernet traversal mobile IP. Background technique [0002] A BWA (Broadband wireless access, broadband wireless access) device may provide a user with a convenient broadband access method. Currently, there are broadband wireless access devices based on proprietary protocols and broadband wireless access devices based on standard protocols. The broadband wireless access equipment defined by the IEEE (Institute of Electrical and Electronics Engineers) 802.16 standard is a subset of a series of standards for broadband wireless access technologies. BWA equipment includes WIMAX (Worldwide Interactive Microwave Access) equipment. [0003] A Multiple Hosts (multiple hosts) architecture in a wireless communication system is shown in FIG. 1 . When this architecture is applied to WiMAX system, the gateway in this architecture is G-MS (Gateway ...

AI Technical Summary

Problems solved by technology

[0010] 1. Unable to support pure 802 layer 2 terminals, RG / G-MS / G-RS must support the function of layer 3 gateway, which is complicated;

[0011] 2. Cannot support Layer 2 VPN (Virtual Private Network) and E2E VLAN (End-to-End Virtual Private Network);

[0012] 3. Unable to support PPPoE (Point-to-Point Protocol over Ethernet) / IPoE (IP over Ethernet);

[0013] 4. For the mixed use of IPv4 and IPv6 terminals, the network must support dual stack;

[0017] 1. It is required to "explicitly" send a registration message for each mobile node. For wireless networks, the air interface bandwidth is the main bottleneck of the network. When there are many MNs (mobile nodes), this method seriously wastes the air interface of the network. bandwidth resources;

[0018] 2. Mobile binding must bind the 802 MAC address of the MN with the IP address of the tunnel end point of the foreign subnet, and limit the tunnel to an IP tunnel;

[0019] 3. Proxy MN must be set on AP (access point);

[0020] 4. Only supports IPv4 mobility management

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