UniFi Security Gateway - VPN Site to Site - Mikrotik?

Question

Mikrotik

Greetings. I'm trying to set up VPN Site-to-Site between UniFi Security Gateway 3P and Mikrotik (with firmware 6.44.5).
On USG I inserted the necessary parameters + just in case I allowed access in the firewall. On Mikrotik, I set up policies, proposals, added a peer, set up a . All turned on. On Mikrotik it shows PH2 State Established on the policy tab, in remote peers it also shows established and time goes by. But in the Installed SAs tab, the current bytes are zero. Pings do not go, there are no accesses to networks. In USG, apart from the firewall, there is nothing to add, so I think something needs to be added to Mikrotik. Let me know if anyone has had a positive experience.