Hi, thank you for your quick answer.
My problem is I actually have 2 isp default gateways, and for that, I though this can be fixed using filter based routing. For this configuration doesn't need any failover configuration.
For that what I need is to be able to forward one private ip addr to one public ip in one ISP or another when is required.
Do you think this can be archieved using source nat or ill need to use another configuration?
i tryed to use vlan tagging to 4 unit logical interface, this didn't worked because I was unable to route throug vlans.
thanks in advance.
Regards.