Connor wants to prevent his company's network from being targeted by IP spoofing attacks as well as prevent the network from being the source of those attacks. Which one of the following rules is NOT a best practice that he can configure at the network border? Group of answer choices Block packets with internal source addresses from entering the network. Block packets with external source addresses from leaving the network. Block packets with private source addresses from exiting the network. Block packets with public IP addresses from entering the network.