Currently I'm using two WANs, with a policy based routing: TCP (and undefined) traffic goes to WAN1 and UDP traffic goes to WAN2. I think that this model is not the best, but it's easy to make the port forwarding, basing destination NAT in the protocol.
I want to use the "load balancing with persistent sessions" method but I have doubts with port forwarding. Anybody knows to solve this problem?
Thanks in advance!