Edge router for 6LoWPAN IPv4 Internet access and access method
A technology of routers and FLASH memory, applied in the field of network communication, can solve the problems of not being able to be widely used, increasing network overhead, and not being universal, and achieve the effects of avoiding artificial fragmentation, ensuring safety, and simple operation
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[0021] The uNAT-PT mechanism for the sensor network access to the Internet (IPv4) based on the IPv6 protocol proposed by the present invention is described in detail as follows with reference to the accompanying drawings.
[0022] like figure 1 Shown is the block diagram of the edge router module used in 6LoWPAN, which can realize the networking of 6LoWPAN nodes and act as a gateway for 6LoWPAN and Internet intercommunication, including: ARM9 control unit (1), power management module (2), 2.4G wireless transceiver module ( 3), a random access memory (RAM) unit (4), a FLASH (flash memory) memory unit (5), an Ethernet port (6-1), and an Ethernet control unit (6-2). The ARM9 control unit runs TCP / IP and 6LoWPAN protocol stack, controls the network layer and media access control sublayer of TCP / IP, completes protocol encapsulation and analysis, network interconnection, routing and forwarding, and completes according to the received IP packet type. The data packets are sent, recei...
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