An external attacker spoofing an internal Internet Protocol (IP) address can BEST be detected by which of the following?
An external attacker spoofing an internal Internet Protocol (IP) address can BEST be detected by which of the following?
An external attacker spoofing an internal Internet Protocol (IP) address can best be detected by comparing the source address to the interface used as the entry point. Each network interface is associated with a specific IP address range or subnet. By checking if the source IP address of an incoming packet matches the expected IP address range for the interface through which it enters, discrepancies can be identified. This method helps in detecting if an external source is attempting to spoof an internal IP address.
When packets enter a network, they do so through specific network interfaces. Each interface typically has a designated IP address range or subnet associated with it. By comparing the source IP address of incoming packets to the IP address range expected from the interface through which they arrive, you can detect discrepancies that may indicate IP address spoofing.