What should the server do if it receives a connect packet that it does not recognize?
For example:
1. The packet contains an invalid (or unsupported) protocol name
2. The packet contains an invalid (or unsupported) protocol version
What should the server do if it receives a connect packet that it does not recognize?
For example:
1. The packet contains an invalid (or unsupported) protocol name
2. The packet contains an invalid (or unsupported) protocol version