动态多点VPN解决方案的设计

he Corporation uses IPSec to build the Virtual Private Network (VPN) in order to provide the security and integrity for the communication between different departments. The traditional IPSec VPN has to memorize a lot of static tunnels. Beside this, because the peer address of traditional VPN must be known, Dynamic Host Configuration Protocol (DHCP) can not be used in traditional VPN. The traditional VPN faces many problems especially in the corporation which has a lot of departments. So as to resolve these problems, we put forward Dynamic Multipoint VPN (DMVPN) to build the IPSec tunnel dynamically.