08194674 is referenced by 145 patents and cites 106 patents.

A gateway device including an access interface to an external network, a trunked interface, and translation logic. The access interface is associated with multiple external source addresses. The trunked interface is interfaced with multiple different virtual local area networks (VLANs), where each VLAN is associated with a corresponding VLAN tag and at least one of potentially overlapping internal source addresses. The translation logic translates between each external source address and each unique combination of internal source address and VLAN tag. A method of network address translation including assigning one of first network addresses to each first device of a first network, dividing the first network into a plurality of VLANs, separating the first devices with the same first network address into different VLANs, and assigning first devices with the same first address to different second network addresses.

Title
System and method for aggregating communications and for translating between overlapping internal network addresses and unique external network addresses
Application Number
12/339053
Publication Number
8194674 (B1)
Application Date
December 19, 2008
Publication Date
June 5, 2012
Inventor
Sameer S Jagtap
Austin
TX, US
David A Babbitt
Round Rock
TX, US
Ezra U Pagel
Austin
TX, US
Agent
Knobbe Martens Olson & Bear
Assignee
Quest Software
CA, US
IPC
H04L 12/28
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