Hello, I was just pondering this...
How well accepted do you think a custom transport layer protocol would be in the practical real world?
Specifically, I fear residential ISPs may filter out anything that isn't TCP/UDP/ICMP.
Now I think most NATs use connection tracking for TCP and hole punching for UDP.
But how would it handle a foreign protocol, would it drop the packet or broadcast it to the subnet?
Thanks
I can't see it ever working.
It isn't even just the hardware in the middle, I think even individual drivers for the software stack at the ends would get in your way.
Soma
what type of transport protocol are you talking about? maybe someone here can help you come up with a way to use an existing protocol to do what you need. for example, TCP can be tunneled over UDP datagrams. that's how a lot of VPN systems work.
UDP is sufficent for what I need.
I was just thinking about potential possibilities, specifically, using a paradigm different from the standard TCP/IP ports setup, seeing how the ports are implemented in the transport layer.
