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No. In my case no virtual IP was necessary. I've seen that WAN2 has 8 IP addresses. So they reported outgoing IP should be the one assigned to the network interface on WAN2.
My setup has a different need. I made it to differentiate traffic over 2 internet connections (like http traffic going over a "cheap" line). Only disadvantage I realized and couldn't solve until now is that this happens before routing. But that shouldn't be an issue in your setup.
My setup has a different need. I made it to differentiate traffic over 2 internet connections (like http traffic going over a "cheap" line). Only disadvantage I realized and couldn't solve until now is that this happens before routing. But that shouldn't be an issue in your setup.
