PPPOA spoofing in point-to-point protocol over ATM using an XDSL modem
AssigneeSamsung Electronics Co., Ltd.
InventorEung-Seok Roh
Life of this patent
Estimating the term…
Abstract
A PPPoA (point-to-point (PPP) over asynchronous transfer mode (ATM)) spoofing function utilizing an asymmetric digital subscriber line (ADSL) modem to form a single network between a client PC and a network access server (NAS) by allowing the ADSL modem to make a PPP connection to the NAS when the client PC is booted, by allowing the NAS to transmit Internet protocol (IP) configuration information, including a global IP address, to a DHCP server of the ADSL modem through a PPP Internet Protocol control protocol (IPCP), and by allowing the ADSL to transfer the IP configuration information received from the NAS to the client PC, thereby forming a bridge by the ADSL modem between the client PC and the NAS to enable IP packets to be transferred between the client PC and the NAS.
Claims14
A method of a PPPoA (point-to-point (PPP) over asynchronous transfer mode (ATM)) spoofing function in an asymmetric digital subscriber line (ADSL) modem, comprising the steps of:
- forming a single network between a client personal computer (PC) and a network access server (NAS) by allowing the ADSL modem to make a PPP connection to the NAS when the client PC is booted, by allowing the NAS to transmit Internet protocol (IP) configuration information, including a global IP address, to a DHCP server of the ADSL modem through a PPP Internet protocol control protocol (IPCP), and by allowing the ADSL modem to transfer the IP configuration information received from the NAS to the client PC;
- forming a bridge by the ADSL modem between the client PC and the NAS and transferring IP packets between the client PC and the NAS;
- and
- allowing the NAS to withdraw the global IP address assigned to the client PC when one of the client PC and the ADSL modem is turned off.
An apparatus for performing a PPPoA (point-to-point (PPP) over asynchronous transfer mode (ATM)) spoofing function in a PPPoA system, comprising:
- a client personal computer (PC);
- an network access server (NAS);
- and
- an asymmetric digital subscriber line (ADSL) modem including:
- an ATM layer, a PPP layer, an Internet protocol (IP) layer, a user datagram protocol (UDP) layer and a DHCP server, said ADSL modem completing a single network connection between said client PC and said NAS by forming a PPP connection to said NAS when said client PC is booted, by receiving at said DHCP server, through an Internet Protocol control protocol (IPCP) of said PPP layer, IP configuration information, including a global IP address transmitted from said NAS, and by transferring the IP configuration information received from the NAS to the client PC to enable said ADSL modem to form a bridge between said client PC and said NAS to allow IP packets to be transferred between said client PC and said NAS.
Dependencies are inferred from the claim text.