Connect to cisco subinterface

I’ve a bit of a dilemma. I’m trying to uplink to a Cisco subinterface that is encapsulated with dot1q. I can’t seem to figure or how to get this to work. I’ll post configs tomorrow, but for now does anyone have any suggestions?

Okay, so what I’m looking for is something similar to this

Core router

interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 10.10.10.1 255.255.255.252


Site router

interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 10.10.10.2 255.255.255.252


The site router will be a mikrotik, budgeting reasons. They have to be sub interfaces because we only have the one interface on the core side, but want to implement a router at the site location rather then a switch.