I would like to install open-WRT on a router MR3420 v 2.3 and want to know if it can act as Load balancer for 2 DSL routers below. but I am not sure if openWRT will solve the following use-case I have two DSL connections providing internet
Unreliable - 4MB (Router has 4 LAN and 1 WAN ports )
Reliable but only 2MB (This router has only 2 LAN ports available)
And an extra 3rd router (4 LANS , 1 WAN, MR3420 v 2.3) on which I want to install openwrt and use it as a load balancing router for the above DSL routers so that I can smoothly browse internet without switching WiFi frequently.
Question: MR3420 has only one WAN port and my assumption is it should have 2 WAN ports to support the two DSL connections above? am I right ? or Can I plug the cables from the DSL routers into the LAN ports of the 3rd router and yet use it as Load balancing router using openWRT ?