A dual WAN router uses a simple policy to "route outbound-only traffic" over one of two lines. There is typically no intelligence in this technique, and no method to avoid or minimize congestion. A dual WAN router provides no link load balancing and failover for inbound traffic.

Ecessa’s PowerLink™ WAN Optimization Controllers are hardened devices that reside between firewalls and LANs and use a simplified and more up-to-date architecture based on Network Address Translation (NAT) and Domain Names Service (DNS). PowerLink is designed for small and medium enterprises who can not afford the expense and overhead of multiple expensive routers with the heavy demands placed on them by ISPs that use BGP.

FAQ terms to describe WAN optimization