The Design of Embedded IPV4 IPV6 Protocol Converter Based on ARM9

With the rapid growth of Internet-scale, IPv4 address space will run out this year. Therefore, the construction of IPv6 network will accelerate. The length of IP addresses bits from 32 bits to 128 bits in the IPv6 Protocol, so it has a vast address space. Since the transitional period from IPv4 to IPv6 requires a fairly long process, during this period, we must ensure that Pv4 and IPv6 can exchange date. In this paper, we use the AT90RM9200 processor design a flexible, low-cost IPv4IPv6 protocol converter, which support the SIP protocol, IPv4 and IPv6 networks can communicate with each other, furthermore, the IPv4 network data can be achieved through the IPv6 network.