VPN IPSEC between MikroTik and Cisco

Hi,
I configured a VPN IPSEC on my MikroTik with Cisco, phase1 went UP, phase2 went UP BUT when I try to do some kind of traffic in VPN tunnel, like a PING the communication doesn’t work
It seems that MikroTik doesn’t encapsule packet into VPN tunnel; from Cisco side I can’t see packet coming from MikroTik … any idea?
My model is a wAP LTE kit …
Thank you,