@Spyderturbo007
Assuming it is a hub and spoke topology:
main site:
first phase 2:
172.16.1.0/24 -> 192.168.50.0/24
172.16.0.0/24 -> 192.168.50.0/24
second phase 2:
172.16.1.0/24 ->172.16.0.0/24
192.168.50.0/24 -> 172.16.0.0/24
site 192.168.50.0/24
192.168.50.0/24 -> 172.16.1.0/24
192.168.50.0/24 -> 172.16.0.0/24
site 172.16.0.0/24
172.16.0.0/24 -> 172.16.1.0/24
172.16.0.0 -> 192.168.50.0/24