公开(公告)号：US20130089092A1

公开(公告)日：2013-04-11

申请号：US13687743

申请日：2012-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuehua Dai ,  Yong Luo ,  Xianjie Yang

IPC: H04L12/56

CPC classification number: H04L45/74 ,  H04L61/2046 ,  H04L61/2596 ,  H04L61/6022

Abstract: A method for preventing address conflict and an access node are provided. The method includes: when an uplink packet is received, obtaining a medium access control MAC address and a link local address LLA which are of a client and are carried in the packet, where the packet is an IPV6 protocol packet borne over Ethernet; generating a corresponding VMAC address for the MAC address according to a predetermined rule; generating a corresponding VLLA according to the VMAC address, where the VMAC address and the VLLA have one-to-one correspondence, and the generated VMAC address and VLLA are unique in one network under a broadband network gateway BNG; replacing, with the VMAC address and the VLLA, the MAC address and the LLA that are in the packet; and transmitting an uplink packet including the VMAC address and the VLLA. In addition, an access node is also provided.

Abstract translation: 提供了防止地址冲突的方法和接入节点。 该方法包括：当接收到上行链路分组时，获得客户端的介质访问控制MAC地址和链路本地地址LLA，并在分组中携带，其中分组是由以太网承载的IPV6协议分组; 根据预定规则为所述MAC地址生成相应的VMAC地址; 根据VMAC地址生成对应的VLLA，其中VMAC地址和VLLA具有一一对应关系，并且生成的VMAC地址和VLLA在宽带网络网关BNG下的一个网络中是唯一的; 用VMAC地址和VLLA替换分组中的MAC地址和LLA; 以及发送包括所述VMAC地址和所述VLLA的上行链路分组。 此外，还提供了接入节点。