基于strongSwan技术和4over6隧道技术的应用与实践

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中图分类号：TP311 文献标识码：A 文章编号：2096-4706（2026）06-0104-05

Application and Practice Based on strongSwan Technology and 4over6 Tunnel Technology

YUANHezhao （TongfangCNKIDigitalTechnologyCo.，Ltd.，Beijing10o192，China）

Abstract： Inresponse to therequirements of theOutline of the14th Five-Year Planfor National Economic and Social Developmentand theLong-Range Objectives Through the Year2035and theimplementationofthe Action Planfor Promoting the Large-Scale Deploymentof Internet Protocol Version6（IPv6），thecompany launches a ful-scale IPv6upgrade and transformation across the network toaccelerate the large-scale deploymentandapplicationof IPv6inthe educationsystem. Aimingathedemand forsmooth transitionof two-sitethre-centerdata centers onthepremiseofensuring service continuity， the companyconductsacomparative studyon IPv6 tunneling technologyand VPNtechnology.Thecompany finalladopts strongSwan，anopen-sourceIPsecsolution，combinedwith4over6tunelingtechnologytobuildencryptedcommunicationlinks betweenremote IPv4datacenters.Experimentalresultsshowthattheencryptedchannelconstructedbythisschemeprovides higherecurityetelinkqualityndigherdatatrasmissionteadectivelysolesteistabilityproblesofoata center communication and large-scale concurrent transmission under IPv4 links.The integration of dual stack technology realizes the reuse of physical equipment and links and significantly reduces the cost of IPv6 transformation.

Keywords： 4over6 tunnel; dual stack; strongSwan; SRv6; IPsec VPN

0 引言

国家“十四五”规划明确提出“推进IPv6规模部署和应用”的战略要求，这既是突破网络基础设施发展瓶颈、提升网络承载能力与安全韧性的关键，也是推动数字基础设施迭代、支撑数字经济高质量发展的基础。（剩余6326字）