Cyber Criminals have long employed the tactic of masking their true identity. In IP spoofing, an attacker gains unauthorized access to a computer or a network by making it appear that a malicious message has come from a trusted machine, by "spoofing" the IP address of that machine.
How would you detect IP spoofing?
A.
Check the IPID of the spoofed packet and compare it with TLC checksum. If the numbers match then it is spoofed packet
B.
Probe a SYN Scan on the claimed host and look for a response SYN/FIN packet, if the connection completes then it is a spoofed packet
C.
Turn on ‘Enable Spoofed IP Detection’ in Wireshark, you will see a flag tick if the packet is spoofed
D.
Sending a packet to the claimed host will result in a reply. If the TTL in the reply is not the same as the packet being checked then it is a spoofed packet
some packet normalizing firewalls reset TTLs and other TCP/IP Variables to mask internal architecture so relying on TTLs is not trustworth. Even regular computers can rewrite TTLs to make it look like they came from another location past layer 3 devices.
which one is the correct answer?