Q: Can the router Forward a Packet through an Interface that receives the packet?

Created Jun 30, 2018 15:39:07Latest reply Jun 30, 2018 15:57:28 247 1 0 0
A: Yes. After receiving a packet on an interface, the router searches the routing table for an entry mapped to the destination address, not the source address. If there is a matched entry, the packet is forwarded even though the inbound and outbound interfaces are the same. Even if URPF is strictly configured, the source address of a packet can still pass the URPF check if it is legal. A packet, therefore, can be forwarded through an interface that receives the packet.
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yangyong  Adept   Created Jun 30, 2018 15:57:28 Helpful(0) Helpful(0)

Thanks for answer。
  • x
  • convention:


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