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发明授权
CN1780294B 基于以太网上的点到点协议实现虚拟专网的方法 失效 - 权利终止

基于以太网上的点到点协议实现虚拟专网的方法
摘要：
本发明公开了一种基于以太网上的点到点协议实现虚拟专网的方法，包括如下步骤：宽带接入服务器根据发布PPPoE服务的电路，绑定L2TP对端，实现PPPoE会话和L2TP会话的绑定；用户主机和宽带接入服务器进行PPPoE会话，宽带接入服务器分配PPPoE会话ID和L2TP会话实体，根据PPPoE会话和L2TP会话的绑定，建立PPPoE会话ID和L2TP会话实体之间的映射关系；宽带接入服务器启动与PPPoE会话相绑定的L2TP会话；用户主机与LNS进行端对端的PPP会话，建立PPPoE会话ID、L2TP会话的隧道ID、会话ID之间的映射关系；用户主机与LNS通过宽带接入服务器透明转发进行PPP数据传输。通过使用这种方法，宽带接入服务器可以快速地接入基于以太网上的点到点协议的虚拟专网业务，并保证虚拟专网的安全性。
摘要（英）：

The method includes following steps: broadband access server makes binding to L2TP opposite end according to circuit releasing PPPoE service; subscriber host station makes conversation with broadband access server; the broadband access server assigns id of PPPoE conversation and L2TP conversation entity; based on binding between PPPoE conversation and L2TP conversation, builds the mapping relationship between id of PPPoE conversation and L2TP conversation entity; the broadband server starts up the L2TP conversation binding with PPPoE conversation; the subscriber host station makes end-to-end conversation with LNS to build up mapping relationship between the id of channel and id of conversation for id of PPPoE conversation and L2TP conversation; through transparent forwarding by broadband access server, the subscriber host station and LNS make PPP data transmission.

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