MikroTik
The Dude 2.1
It will automatically scan all devices within specified subnets, draw and layout a map of your networks, monitor services of your devices and alert you in case some service has problems.
Network & Internet > Network MonitoringRouterOS 2.9.31
The MikroTik Router will replace your hardware router and will provide more functions at a fraction of cost. Firewall, Wireless, Routing and VPN are just a few of the functions it provides.
Network & Internet > Other Internet Tools