Method and system for packet transit through IPV4 networks connecting IPV6 nodes and LANs in a utility grid using tunneling technique,申请号US20070807184-传众专利搜索

Method and system for packet transit through IPV4 networks connecting IPV6 nodes and LANs in a utility grid using tunneling technique

申请公布号：US2008186203(A1)

申请号：US20070807184

申请日期：2007.05.24

申请公布日期：2008.08.07

申请人：

VASWANI RAJ;PACE JAMES;RAMASATRY JAY

发明人：VASWANI RAJ;PACE JAMES;RAMASATRY JAY

分类号：G08C17/02

主分类号：G08C17/02

摘要：One example embodiment provides a method and system where LAN nodes in an IPv6 utility network are able to communicate with an IPv6 node through and IPv4 network. An access point associated with an IPv6 LAN in the utility network establishes an explicit or configured tunnel to an IPv6 node or and IPv6 network through and IPv4 network. In one preferred embodiment the IPv6 node is a back office system communicating through an IPv4 WAN with the IPv6 node in the utility network LAN using the access point in the LAN. The access point communicates with the back office system through the IPv4 WAN to establish a "6 in 4" tunnel through the IPv4 WAN. A tunnel broker may maintain the "6 in 4" tunnel through the IPv4 WAN between the access point and the back office system.