Well, you have experienced first hand that the Docker's idea that people working with network should not need to understand network is dumb. Start with old and

Well, you have experienced first hand that the Docker's idea that people working with network should not need to understand network is dumb. Start with old and venerable LARTC (Linux Advanced Routing & Traffic Control HOWTO). TCP/IP hasn't changed all that much since it was written and last updated, even with the advent of Docker.