Cisco Exam Questions

What will the router do with this packet?

Refer to the output of the corporate router routing table shown in the graphic. The corporate router
receives an IP packet with a source IP address of 192.168.214.20 and a destination address of
192.168.22.3. What will the router do with this packet?

A.
It will change the IP packet to an ARP frame and forward it out FastEthernet 0/0.

B.
It will discard the packet and send an ICMP Destination Unreachable message out interface
FastEthernet 0/0.

C.
It will forward the packet out interface Serial 0/1 and send an ICMP Echo Reply message out
interface serial 0/0.102.

D.
It will encapsulate the packet as Frame Relay and forward it out interface Serial 0/0.117.

Explanation:
The destination IP address of 192.168.22.3 is not in the routing table of the Corp router. Since
there is no default route set, as shown by the “gateway of last resort is not set” statement, the
packet will be dropped by the router and an ICMP Destination Unreachable message will be sent
back to the source, which is Fast Ethernet 0/0 in this case.