2 Datacentres, 3 Sohpos appliances, IPSec

Question

Hi, 
 
 I have a sophos XG210 in Datacentre A with a lan IP os 10.101. 3.0 /24 
 In Datacentre B I have a XG210 with a DMZ of 10.101. 105.0 /24 
 Datacentra A and B are connected using IPSEC 
 
 The problem is that in Datacentere B I have another firewall layer between the DMZ and LAN that has a LAN ip or 10.101. 5.0 /24 
 
 Can anyone tell me how I can connect Datacentre A's 10.101. 3.0 /24 with Datacentre's B Lan 10.101. 5.0 /24? 
 
 With IPSec I can ping from 10.101.3.0/24 and reach 10.101.105.0/24 so I just need that last route/rule to get it from 10.101.105.0/24 to 10.101.5.0/24 
 
 Much appreciated

Aditya Patel · Accepted Answer

Hello Allan, 
 I have a question about your requirement since there is a firewall between 10.101.105.0 amd10.101.5.0 then that firewall should manage the communication. How is this traffic related to IPsec? 
 If you want network10.101.3.0/24 to communicate with 10.101.5.0/24, then you may add a network source in IPsec connection profile on site B as 10.101.5.0 and on-site A the destination network 10.1015.0/24 is needed to be added.