Packet routing method, computer system, and computer product

摘要

A gateway receives from a file server a packet addressed to another gateway in the same alliance, and transfers the packet to the other gateway. The gateway transmits a packet to the file server via another gateway in the same alliance. Upon receiving a packet from another gateway in the same alliance, the gateway transfers the packet to a PPTP server. The PPTP server transmits a packet received from the file server to a gateway via a different gateway in the same alliance.