pfSense-On-A-Stick - 802.1Q Trunking With pfSense 2.0 RC1 and Mikrotik RouterBoard RB250G Smart Gigabit Switch with five ports and SwOS v1.5 - Stefcho's Tech Blog
topology - Setting up a pfsense router between two private subnetworks - Network Engineering Stack Exchange
Firewall Mikrotik Pfsense VPN Netzwerk Security Appliance Router PC Intel Atom D525 Dual Core 2GB Ram 32GB SSD - AliExpress