L2TP over IPSec VPN user access to DMZ

Question

I would like to know if anyone can help me. I have created two users who must remotely access the internal network and the three DMZ networks (DMZ1, DMZ2, DMZ3) through the L2TP over IPSec protocol. I have configured the L2TP over IPSec connection and the users are able to connect to the internal network .... but they can not connect to the three DMZ networks. P.S - I have assigned a static IP for each user Attached the screenshots of the configurations 
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Omar Zagnoli · Answer

Hi Bob, 
 Thanks for the reply... 
 A user can connect remotely to my job via L2TP over IPSec VPN connection. 
 He can connect any of the Internal network (LAN) computers and services... 
 But...even if there is a firewall policy that enables this user to fully access (any service) the DMZ1, DMZ2 and DMZ3 networks, the user can even ping the servers ... so less connect via RDP. He can only ping the IP of the DMZ assigned UTM network ports. 
 Of course I'm missing some network mapping or policy ... but I could not understand which one ... 
 Can you help me? 
 P.S - 
 Internal network: 172.16.0.0/16 
 DMZ1: 192.168.1.0/24 
 DMZ2: 192.168.2.0/24 
 DMZ3: 192.168.3.0/24