router – Ping community from different networks

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I’ve the next community:
Router Teltonika 4G (192.168.16.1) < Web > Router Teltonika 4G (192.168.20.1) < ethernet > Router Mikrotik (192.168.180.1)
I succesfully related each teltonikas by VPN IPsec. I can ping community 16 from community 20 and vice-versa. I can also ping networks 16 and 20 from community 180. Nevertheless I am unable to ping community 180 from networks 16 and 20. I talked with a technician and he mentioned that is associated to firewall, so I ought to disable or allow some guidelines. I nonetheless do not have success. Is firewall associated with my downside? Or do I must create new routes? Additionally ought to the mikrotik be related to ipsec?
Thanks
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