Routing out through multiple WAN IP addresses

RouterOS General
1

My ISP assigned me 5 consecutive IP addresses and until point in time, I have only used one. Now I need to place a new device in my DMZ and map a public IP to it. What is the process to do this?

Essentially, when this device browses the internet, I want it to route out the secondary IP instead of the default one.

What is the nat rule that I need in place?

Thanks

2

In zyxel vernacular this one was one to one NAT…
I think in MT lingo you want to research NETMAP