Hot answers tagged ip-spoofing
Short answer: no. Longer answer: yes, if you control a router device close to the target device (it has to be on the path between the the real source IP address and the target, and on the path between the faked IP address and the target) or if the target network/host accepts source-routed packets.
Without access to the network behind one of the allowed IP addresses or access to a machine behind one of the allowed IP addresses, you can not pass a TCP 3-way handshake with a spoofed IP address.
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