Do not forget that the TCP/IP protocol suite's transport stage is where reassembly and reordering of packets occurs. If necessary, a firewall may function at the Internet or data layer level of abstraction. If a traffic stream is corrupted or removed, a stateful inspection firewall will not be able to learn anything about it.

Remember that the TCP/IP protocol suite's transport step reassembles and reorders packets. If needed, a firewall may operate at the Internet or data layer. A stateful inspection firewall cannot learn about a traffic stream that is damaged or deleted?

It is important to keep in mind that the reordering and reassembly of packets takes place during the transport step of the TCP/IP protocol suite. The Internet or the data layer are two examples of lower levels of abstraction that a firewall is able to function at. If a traffic stream is either out of order or has been deleted, a firewall that uses stateful inspection will be unable to determine anything about the stream's contents.

In IEEE 802.11, two-way communication is used to authenticate an open system. In order to authenticate the client, the server must give the station ID (typically the MAC address). Response to the client's previous request is either a successful or failed authentication response from the access point/router. An error may arise if, for example, an AP/router configuration does not include the client's MAC address.In what ways is it advantageous to use this kind of authentication scheme?In what ways does this authentication technique have security vulnerabilities that might be mitigated?