What are some alternatives?
When comparing Gargoyle and ClearOS, you can also consider the following products
MikroTik RouterOS - The main product of MikroTik is a Linux-based operating system known as MikroTik RouterOS.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
OpenWrt - OpenWrt is an open-source firmware based on Linux for wireless routers
Zentyal - Linux directory, domain, mail, gateway and infrastructure server for SMBs.
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
LibreMesh - An Open Source Sofware for Geek-free Mesh Community Networks.