2 ms·
In practice, port number is used as part of address, or, VPN, with tagging, are used. We can make convention that top 4 bits of port number are part of the host
by oneshtein 3y ago
In practice, port number is used as part of address, or, VPN, with tagging, are used. We can make convention that top 4 bits of port number are part of the host address. It will increase number of available addresses by up to 16x.
For example, we have router at 1.2.3.4/192.168.0.254, and 15 hosts behind it, then, by convention, we can access 192.168.0.1 from public internet as 1.2.3.4:32848 (port 32767+1+80), host 192.168.0.3 as 1.2.3.4:32849, and so on.