This paper proposes to use connection identify (CID) to mark the process of obtaining a service

and add connection identify mapping server (CMS) to achieve the management of connections.CMSs make the core network and access network be separated.And through the mapping between CID and IP in the CMSs

the communication is separated to three steps.This mapping communication mode makes the sending of packets be based on CID instead of IP address.Thus

the controllability and manageability of connections have gained a remarkable increasing.Moreover

this paper has particularly represented the advantages of the mapping communication

and the compatibility of current applications.In addition

we give some countermeasures aimed at the new network attacks which the mapping communication mode may bring about.At last

the experimentation results reveal the specific performances of mapping communication mode.