Abstract: Mobile nodes must support the application of multiple network interfaces in the future.Proxy Mobile IPv6（PMIPv6） protocol can provide network-based mobility management for mobile nodes without involving the mobile nodes themselves in mobility management.This paper analyzes the application of multiple interfaces technology in PMIPv6，describes virtual interface technology，and illustrates the multi-access method based on virtual interface to access PMIPv6 domain.The performance of the proposed scheme is tested and evaluated in the test-bed.The experimental results show that the scheme can support multi-homing in PMIPv6 domain and realize the inter-technology handover among multiple interfaces.

Key words: Proxy Mobile IPv6（PMIPv6）, multiple interfaces, virtual interface, test

摘要： 未来移动节点必须支持多个网络接口的应用。代理移动IPv6（PMIPv6）协议可以为移动节点提供基于网络的移动性管理，不需要移动节点参与移动性管理。分析了多接口技术在PMIPv6下的应用，详述了基于虚拟接口实现多接口接入PMIPv6的方法。在实验室集成开发环境下进行了实验测试，测试表明基于虚拟接口的PMIPv6多接口接入基本实现了多家乡和异构切换功能。

关键词: 代理移动IPv6, 多接口, 虚拟接口, 测试