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I can also spoof network packages, but my ISP will discard them. Why can't they do the same?
by slig 15y ago
I can also spoof network packages, but my ISP will discard them. Why can't they do the same?
- viraptor 15y agoOnly on your side. If someone was peering with your ISP and they sent some spoofed packets, there's a big chance they'll be accepted. If they get filtered, that's probably based on the ranges published by the peering partner. You can consider anycast to be something like spoofing - multiple hosts make you believe they have the same address. There's no way your ISP can verify they are.