SYSTEM FOR CONVERTING DATA BASED UPON IPV4 INTO DATA BASED UPON IPV6 TO BE TRANSMITTED OVER AN IP SWITCHED NETWORK

摘要

System for converting data packets based upon the IPv4 protocol into data packets based upon the IPv6 protocol to be transmitted over a Virtual Private Network (VPN) in a data transmission system comprising an IP switched network (25) to which are connected a first workstation (20) via a first Provider Edge (PE) device (24) and a second workstation (26) via a second PE device (30), the workstations operating with the IPv4 protocol whereas the IP switched network operates with the IPv6 protocol. this system comprises a first packet builder (22) between the first workstation and the IP switched network for converting any data packet based upon the IPv4 protocol received from the first workstation and transmitted to the IP switched network into the IPv6 protocol and reciprocally, and a second packet builder (28) between the IP switched network and the second workstation for converting any data packet based upon the IPv6 protocol received from the network and transmitted to the second workstation into the IPv4 protocol and reciprocally.