On 24 July 2009, OptimumPath sent notifications of Cisco's infringement to Belkin, Cisco, D-Link, Netgear, Buffalo, Compex, and SMC Networks. (Can you help? Why did they notify all those other companies about infringements by Cisco??)
The patent was filed on 13 Sept 2000. The "patent date" is 25 Apr 2006. (Can you help? That's the grant date, right?)
 Can you help find prior art?
 Is it a software patent?
The hardware elements all seem non-innovative. There aren't even any innovative combinations or uses of said hardware. It's just a chassis, a network card, a processor, and after that it's software that does networking with these items. It seems to be a software patent.
- Who invented the embedded Linux based wireless router?, 21 Oct 2010, David Täht
- OptimumPath's Disclosure of Asserted Claims and Infringement Contentions - interesting read! It's a table which gives each allegedly infringed claims and a description of why they see Cisco's device as practising that claim
- (archive.org) Wireless Router Howto, published in December 1998, this link is to an archive.org copy made in October 1999 (the patent was filed in 2000)
- "Disclosure of Asserted Claims and Infringement Contentions". http://www.taht.net/~d/patent/OptimumPath%20-%20PICs%20%28Linksys%29%20-%202009%20July%2024.pdf. "see pages 6 and 7"
This wiki is part of the End Software Patents (ESP) campaign (donate). For more information, see: