How to set up an external IP address on Mikrotik'e in the local network?

Question

Mikrotik

There is a Mikrotik RB951 that acts as the main router. There is also another similar router, the WAN port of which is inserted into one of the LAN ports of the main router. The provider issued two IP addresses on one cable, let them be 1.1.1.1 and 2.2.2.2 (subnet 24)
The WAN port with the address 1.1.1.1 is configured on the main router, and in the LAN it distributes addresses from the 10.10.10.0 network via DHCP /24, he himself has the address 10.10.10.1
Now the second Mikrotik receives an address on its WAN port dynamically from the main router and received the address 10.10.10.2
The local network of the second Mikrotik is 10.10.20.0/24 (he himself is in his local network )
Task: on the second Mikrotik, you need to configure its WAN port to the second IP address that the provider issues, that is, 2.2.2.2
Is it possible to implement this? And if so, how?
Please do not offer alternative options a la "why not do it like this?" (except if the task above cannot be implemented)

Answer 1

On the first mikrotik, you make a bridge between the WAN port and the LAN into which the second microt "looks" (removing the last one from the LAN bridge). And voila. On the second microt on the WAN, it sets the address 2.2.2.2 and you get what you need. Dvi microta with addresses from the provider.
ZY Questions in a personal.
I’ll also add, nothing prevents raising both addresses from the provider on the first microtic and routing them together from one wire for different networks. Savings on the second micro, it can be removed and put into the right place.
In general, Mikrotiks allow a lot of things, the task determines only the need for iron resources for its execution.