stephenw10,
thank you very much, I think it's working now.
I did the Load Balance and it seems OK.
Doubt: it's necessary a rule to interface receive the pings request, isn't? Otherwise, the gateway status will appear offline.
Well, I made a rule that allows them (pings). Because I had a problem when I took the ethernet cable away. The gateway was offline even the interface (OPTx) status online.
Sorry the English…