The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 25, 2015

Filed:

Apr. 07, 2014
Applicant:

Rpx Clearinghouse Llc, San Francisco, CA (US);

Inventors:

Debin Zhang, Littleton, MA (US);

Roger Lapuh, Usslingen, CH;

Ganesh Nakhawa, Westford, MA (US);

Assignee:

RPX CLEARINGHOUSE LLC, San Francisco, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/741 (2013.01); H04L 12/46 (2006.01); H04L 12/931 (2013.01);
U.S. Cl.
CPC ...
H04L 45/74 (2013.01); H04L 12/4625 (2013.01); H04L 12/4641 (2013.01); H04L 49/354 (2013.01);
Abstract

IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch.


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