Excerpt - page 161: "... VPN security to a wireless LAN is to use a router or gateway that incorporates VPN support. VPN-enabled routers are available ..."
Excerpt - page 469: "... in the section titled Configuring Manually to get into the router. See if any of its setup screens display the WPS PIN number. (On a TrendNetrouter I tested, I found this under Wireless, Wi-Fi Protected ..."