It's TCP. It's always point to point. There are
no broadcast ability in
TCP. However, there is nothing preventing you to have multiple TCP
connections with the same local port. It's still separate connections.
Fair enough, but your application which listen() for connections has to decide whether
it will accept() more than one. If your MUltinet DECNet tunnel thingie only accepts one,
then by definition you can only have one connection per TCP/IP port. If it accepts more
than one, then how does it know which DECnet node is on the other end of each one? More
importantly, how does DECnet deal with that??
If a single instance of your Multinet DECnet over IP tunnel driver can talk to more than
one remote client at once, then you have a single DECnet circuit with multiple adjacencies
on the other end. This is like Ethernet, not a point to point circuit. How does DECnet
deal with that?
Bob