□ Unicast RPF(Reverse Path Forwarding)
○ Summary : It checks whether a packet's source IP address is forged or not
○ How : Using routing table
○ Step
○ How : Using routing table
○ Step
- Unicast RPF changes source IP address of incoming packet to Destination IP Address
- Using the routing table, It checks the packet transmission route
- If the packet is transmitted at the same interface, it is normal packet. It means that the source IP address is not forged
- Using the routing table, It checks the packet transmission route
- If the packet is transmitted at the same interface, it is normal packet. It means that the source IP address is not forged