Masanobu SAITOH , Developing CPE Routers based on NetBSD
http://www.netbsd.org/~msaitoh/ABC2014-P6B-CPE-1.pdf
Masanobu SAITOH , Implementation and Modification for CPE Routers: Filter Rule Scan Optimization, IPsec Interface and Ethernet Switch
http://www.netbsd.org/~msaitoh/ABC2014-P7B-CPE-2.pdf