Sandy C Chang

US Patent:

20060072601, Apr 6, 2006

Filed:

Sep 15, 2003

Appl. No.:

10/662703

Inventors:

Zhidan Cheng - Sunnyvale CA, US
Sandy Chang - San Jose CA, US
Hua Chen - San Jose CA, US
Jhaanaki Krishnan - San Jose CA, US
Yalun Li - Fremont CA, US

International Classification:

H04L 12/56

US Classification:

370419000, 370420000

Abstract:

The number of IP addresses required by a central office device, which is connected to a network segment and a number of customer internet devices to pass packets between the network segment and the customer internet devices, is reduced to one by using an IP address and a subnet mask that are associated with the network interface as a virtual interface. The subnet mask allows packets to be routed to the central office device, which then forwards the packets to the customer internet devices.