How to establish connection between internal or wan interface

Question

Dear All, 
 Plz tell me Howe to establish connection between internal or wan interface from sophos utm 9

sachingurung · Answer

Hi Adeel, 
 I guess you need your internal client to reach the internet. Three things. 
 1. Add LAN network in the allowed network box of DNS settings. 
 2. Configure NAT-MASQ rule. Internal network > WAN. 
 3. Configure a FW-rule LAN-Any-WAN. 
 Thanks

apijnappels · Answer

Or if it is the other way around when you need an external host to reach a server on the inside, you will need te create a DNAT rule to forward the specified port(s) to the correct internal host.