SSL to site to site VPN

[vishal]

Hi All, Please find attached diagram where on my ASA SSL VPN is configured to access my internal network behind my another vendor firewall i.e FORTIGATE. But Now my Company wants that users from outside connect to SSL Vpn using an ASA and after successfully connected and access internal network which is behind FORTIGATE should able to access other locations i.e via Site to Site tunnel which is configured on fortigate in between location. So can anyone help me is it possible ? If yes how can make it work through. Below I'm giving some IP detail  SSL VPN assign pool ( 172.20.1.0/24) (172.20.1.0/24) is going to Nat on 192.168.1.1 when user needs to connect to other locations via site to site tunnel which is configured on Fortigate Also need to know is it possible to extend 1 public IP to both ASA and Fortigate using L2 Vlan (Refer Attached diagram)