IP address assignment system and process method thereof

A processing method of an internet protocol address assignment system comprising a subscriber terminal, a subscriber exchange, a remote access server, an authentication server and a resource control server, the remote access server being connected to the subscriber exchange using a network node interface, an internet protocol address being assigned to the subscriber terminal using the authentication server and the resource control server, comprising the steps of:

• calling from the subscriber terminal to the subscriber exchange;
• notifying the remote access server of the calling from the subscriber terminal to the subscriber exchange;
• confirming whether or not there is any internet protocol address to be assigned to the subscriber terminal by the resource control server;
• reserving the internet protocol address to be assigned to the subscriber terminal in the resource control server on the basis of the confirmation result of the resource control server;
• notifying the remote access server whether or not the resource control server reserves the internet protocol address to be assigned to the subscriber terminal;
• authenticating the subscriber terminal by the authentication server;
• notifying the remote access server of the authentication result of the authentication server;
• and
• assigning the internet protocol address reserved in the resource control server to the subscriber terminal when the subscriber terminal is authenticated by the authentication server.

A processing method of an internet protocol address assignment system comprising a subscriber terminal, a subscriber exchange, a remote access server and an authentication and resource control server, the remote access server being connected to the subscriber exchange using a network node interface, an internet protocol address being assigned to the subscriber terminal using the authentication and resource control server, comprising the steps of:

• calling from the subscriber terminal to the subscriber exchange;
• notifying the remote access server of the calling from the subscriber terminal to the subscriber exchange;
• confirming whether or not there is any internet protocol address to be assigned to the subscriber terminal by the authentication and resource control server;
• reserving the internet protocol address to be assigned to the subscriber terminal in the authentication and resource control server on the basis of the confirmation result of the authentication and resource control server;
• notifying the remote access server whether or not the authentication and resource control server reserves the internet protocol address to be assigned to the subscriber terminal;
• authenticating the subscriber terminal by the authentication and resource control server;
• notifying the remote access server of the authentication result of the authentication and resource control server;
• and
• assigning the internet protocol address reserved in the authentication and resource control server to the subscriber terminal when the subscriber terminal is authenticated by the authentication and resource control server.