I have 5 remote sites and would like to use the internet at the Head Office using 3G modems on RB411U. The Head Office has a Core 2 duo machine with a 3G modem connected with a Fibre Connection on the WAN Interface, I want this to be the gateway for the 5 Remote sites through the 3G Modem. I have a similar senario but using a cisco router. I want to implement the same on a mikrotik router. I have managed only to connect 1 remote site at a time due to the limitation of adding a remote address when setting up a ppp client to connect to the Network