Block ports used by experiments

[felixauringer]

Is your feature request related to a problem? Please describe.

The bee uses raw sockets. Therefore, the kernel does not know which ports are used by the bee and can not prevent other programs from trying to use them.

Describe the solution you'd like

At least the ports forwarded for experiments could be blocked by the bee, e.g. by creating a socket for that port-protocol-combination.

Describe alternatives you've considered

Because all ports not in use are forwarded to the default beehive via the raw socket, one could also think about blocking most of those ports (some probably have to stay open so that other network traffic (e.g. updates) is still possible.