i have an internal network 10.10.10.0/24 that i want to route to a second uplink 192.168.178.1 that routes packets to a network e.g. 126.96.36.199
But some target ip addresses like 188.8.131.52 and 184.108.40.206 from the target network should be routed through the default WAN interface and not the second uplink 192.168.178.1. Source is the given internal network 10.10.10.0.
I have especially a problem with the understanding of NAT in this case as the network 10.10.10.0/24 needs to be natted with one interface. Here i can choose of course my second interface uplink 192.168.178.1. In this case all traffic from the source network 10.10.10.0 would be leaded out through the second uplink. But what about the excluded target ips?
How would i achieve this task most suitable.