Hello, Yes, they do but I am not clear, I m newbie and never do this before, what I have now is: The ISP UTP CAT5 cable plug into Mikrotik's ether1 and its IP is 202.1.2.3/30 And IP addresses 139.1.2.1 is natted with server A 139.1.2.2 is natted with server B 139.1.2.3 to 139.1.2.4 -- reserved (curr...