What type of firewall consists of a screening router and a set of rules that accept or reject a message based on information in the message's header (a packet): the source address, the destination address, and the port?

What type of firewall consists of a screening router and a set of rules that accept or reject a message based on information in the message's header (a packet): the source address, the destination address, and the port?

What type of firewall consists of a screening router and a set of rules that accept or reject a message based on information in the message's header (a packet): the source address, the destination address, and the port?




a. Proxy.
b. Bastion host.
c. Packet filtering.
d. Intrusion detection.




Answer: C