Patent ID: 7158514
Filing Date: 2007-01-02
Classification: H04L

Abstract:
1. A device for routing a multicast packet between at least one first device using IPv4 as a communication protocol and at least one second device using IPv6 as a communication protocol, the device comprising: two or more interfaces connected via a network to either of the at least one first device or the at least one second device; a memory unit for storing an interface of the two or more interfaces intended to route an IPv4 multicast packet transmitted from the one of the at least one first device; a transmission/reception unit for routing the IPv4 multicast packet received from the one of the two or more interfaces to another of the two or more interfaces; and a conversion unit for converting an IPv4 multicast address contained as a destination address in the received IPv4 multicast packet into an IPv6 multicast address and generating from the IPv4 multicast packet an IPv6 multicast packet containing the IPv6 multicast address as a destination address, wherein the transmission/reception unit routes the IPv6 multicast packet to the interface connected to the at least one second device stored in the memory unit, wherein the conversion unit converts the IPv4 multicast address into the IPv6 multicast address by adding a fixed pattern to the IPv4 multicast address.