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Suppose as a attacker i want to have a Ping or SYN Flood attack that floods a server with Pings/SYNs ..

If i change the source IP of the packets generated at my machine of the packets to a false/spoofed IP address so that the replies go to that spoofed IP.

So my question is that NAT changes the IP address from private to ISP DHCP assigned public address .. so what i was thinking that the spoofed IP gets overwritten with the public IP..

Would a WiFi router drop the packet if source IP was a spoofed public IP or it forwards the packet to the destination and the reply comes back to the routers public IP address?

How would IP Spoofing work in this case?

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