TCP 0 vs 1-65535
Hi, i am trying to configure a connection to remote desktop from vpn clients using windows connection security rules. What i want to do is only allow the very specific ports required, even if that requires a few ports and a range opening up.
Usually i would just look at the Traffic Monitor, try the process and make a note of the ports/protocols i'm after. However in this instance, the only way i can make the connection work is by setting my rule to TCP 0 (i.e. all ports). However if I set it to a range of 1-65535, it doesn't work. For example, one of the ports attempted on one connection was 49667. That's within the range, but just lists it as unhandled external. If i change that same rule to TCP 0 instead it works fine.
Is there a difference between TCP 0 and TCP 1-65535 in a rule?