Multi-WAN routers: A comprehensive guide to five of the best
TP-Link ER7206 Omada Gigabit Multi-WAN VPN Router, 1× G SFP WAN Port,
Balance 2500 Multi-WAN Router
Multiple WAN connection (MultiWAN), the most popular Internet Connection concept in Cuba, trying to take it to OpenWrt - Network and Wireless Configuration - OpenWrt Forum
TL-R605 | SafeStream Gigabit Multi-WAN VPN Router | TP-Link Australia