This article first advances several plans about the relative position of VPN gateway and Firewall when we integrate the functions of them,and analyses the merits and drawbacks of each plan.

• 首先提出了集成实现虚拟专用网和防火墙两者功能时,VPN网关和防火墙的相对放置位置的几种方案,并分析了每种方案的优缺点。