Connect 2 different Networks via VPN Site-to-Site

Question

Hello, 
 I've got a Problem with the VPN Service of Sophos Firewall XG. I think it is not a real VPN Problem, because Iam able to establish the connection between the Fritzbox and Sophos. 
 But it is not possible to acces the new Network. The Network is established Site-to-Site between an Fritzbox an the Sophos UTM. 
 
 My Sophos Network is in LAN: 192.168.2.0/24 on WAN 78.0.0.1 (it is an example static IP) -> The XG Firewalls internal IP is 192.168.2.1 
 The external Fritzbox Network is in LAN: 192.168.100.0/24 on WAN: DDNS Service 
 
 Some Attachment is a Picture of the VPN information -> I think the link is up.

Does someone know, how it is possible to get Access to the Network 192.168.100.0/24 ? 
 
 Thanks for your help.

lferrara · Accepted Answer

Mario, 
 did you create the LAN to VPN and VPN to LAN firewall rules? 
 If yes, can you share the IPSec logs? 
 Thanks

Greg CT · Answer

As this is a site-to-site VPN, there is no HTTP protocol traffic passing, so do not enable HTTP scanning