Network address distributing method based on customer terminal

In the method, network address of access network is applied by user and network address of the first network is distributed to the user by switched in server as per its configuration as well as user resource is distributed, certification request is launched by the user and the user is certified by switched in server and to return back the certification result, user network address is refreshed by client end as per certification result and network address of the second network is applied and to distribute it to the user by switched in server as per certification result so message of the user can be sent directly without special processing of any device and it supports various protocols.