Internet protocol address allocation device and method

Details Internet protocol address allocation device and method Internet protocol address allocation device and method

2007-10-23

2007-10-23

Kizou, Hassan (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S401000, C370S475000

Reexamination Certificate

active

10650925

ABSTRACT:
A device and method for allocating the same Internet protocol (IP) address to all information terminals or hosts connected to a specific local network, which allows the hosts in the local network to gain access to the Internet while the hosts share a single IP address. The device includes a dynamic host configuration protocol (DHCP) client, a local access point, and a DHCP server spoofer. The DHCP client is allocated an IP address through a DHCP message communication with an Internet service provider. The Internet service provider includes a DHCP server for allocating IP addresses to the hosts and an Internet access gateway. The local access point includes a hardware address port translation (HAPT) module and a local IP address translation (LIAT) module. The HAPT module modifies a source medium access control (MAC) address and port number of a frame received from each host, stores the modified result in a HAPT table, and recovers a destination MAC address and port number of a frame received from the Internet service provider, referring to the HAPT table. The LIAT module prevents a collision occurring because the hosts have the same public IP address. The DHCP server spoofer implements a DHCP server function to allocate an IP address to each host.

REFERENCES:
patent: 6157950 (2000-12-01), Krishnan
patent: 6249820 (2001-06-01), Dobbins et al.
patent: 6353614 (2002-03-01), Borella et al.
patent: 6381638 (2002-04-01), Mahler et al.
patent: 7106739 (2006-09-01), Beier
patent: 7139828 (2006-11-01), Alkhatib et al.
patent: 7154891 (2006-12-01), Callon
patent: 7197035 (2007-03-01), Asano
patent: 2003/0007486 (2003-01-01), March et al.
Network Working Group Request for Comments 1631, entitledThe IP Network Address Translator(NAT) by K. Egevang et al. dated May 1994.
Network Working Group Request for Comments 2131, entitledDynamic Host Configuration Protocol, by R. Droms dated Mar. 1997.
Network Working Group Request for Comments 2132, entitledDHCP Options and Bootp Vendor Extensionsby S. Alexander et al. dated Mar. 1997.

Affiliated with

Also associated with

Rating

Internet protocol address allocation device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internet protocol address allocation device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internet protocol address allocation device and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3894378