Step 3. For NAT setting, the user needs to configure the following:
-
Rule's name.
-
Set Virtual Server type to let USG do packet forwarding.
-
Fill in the Original IP (WAN IP) address.
-
Fill in the Mapped IP (ISG's IP) address.
-
Configure the Original Port and the Mapped Port; here we set the SIP signaling port 5060 and RTP port range 10000-20000.
Make sure these port settings are the same as those set in ISG50.
36