Site to Site VPN - Up but can only access remote Fortigate
I'm setting up two new Fortigate 60F devices, one at a head office and the other at the branch office. Using the VPN IPsec wizard I created IPsec tunnels on each and it shows status: up.
However, from a computer at the branch office I cannot access IPs on the head office network (for example, 192.168.20.20) but I can reach the head office Fortigate (192.168.20.1).
Is there another step I need to do?