(The router checks whether the routing table has an entry that matches the destination address of the packet. Assume that the routing table contains a matching entry and that the next hop address is another router that can be reached via Ethernet interface 1. The router then needs to look at the Layer 2 address of the next hop. Assuming it does not have this address, it needs to send an ARP broadcast packet on Ethernet interface 1. Assuming no ARP response is received, the router discards the packet.)
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