There are 2 networks both connected to the internet with a MT router. I am planning to set up a PPTP connection between one or two workstations of network A to network B. Are there any limitations to doing so?
What does the following mean:
“PPTP connections may be limited or impossible to setup though a masqueraded/NAT IP connection.” quoted from http://www.mikrotik.com/docs/ros/2.8/interface/pptp.content
? Both networks A and B are masquaraded. How does it apply to me?
To create a PPTP connection to PPTP server behind a NAT/masquerading router or firewall, you have to create some port forwarding in the firewall (i.e. the control connection on TCP port 1723, and ip protocol “GRE”). If you only have one external IP address, you can only create one of those forwardings, each.
That’s the limitation the think of in the manual. Perhaps you could just create a PPTP tunnel between the two MikroTiks (and then again filter it in the firewall, so you can control who can communicate with whom)?