H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 3/22 (2006.01)
Patent
CA 2570843
An IPv4 node (18 or 20) is able to send an IPv4 packet to an IPv4 destination (22) via an IPv6 access network (14), based on translation (30 or 32) of the IPv4 packet into an IPv6 packet for transmission via the IPv6 access network (14). The IPv4 packet is translated into the IPv6 packet by a local gateway (30). The IPv6 packet has an IPv6 source address that includes a prescribed address prefix (34) assigned to the local gateway (30), and an IPv4 address of the IPv4 node (18 or 20). The IPv6 packet also includes an IPv6 destination address that includes a second address prefix (38) assigned to a remote gateway (32), and a second IPv4 adress of the IPv4 destination. The IPv6 packet is converted by the remote gateway (32) into an IPv4 packet for reception by the IPv4 destination via an IPv4 network (16).
Un noeud IPv4 est en mesure d'envoyer un paquet IPv4 à une destination IPv4 via un réseau d'accès IPv6 après traduction du paquet IPv4 en un paquet IPv6 pour transmission via le réseau d'accès IPv6. La traduction du paquet IPv4 en paquet IPv6 se fait par une passerelle locale. Le paquet IPv6 comporte une adresse source IPv6 comprenant un préfixe d'adresse spécifié attribué à la passerelle locale ainsi qu'une adresse IPv4 du noeud IPv4. De plus, le paquet IPv6 comprend une adresse de destination IPv6 incluant un second préfixe d'adresse attribué à une passerelle éloignée, et une seconde adresse IPv4 de la destination IPv4. Le paquet IPv6 est converti par la passerelle éloignée en un paquet IPv4 pour réception par la destination IPv4 via un réseau IPv4.
Thubert Pascal
Wetterwald Patrick
Cisco Technology Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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